Ecm b fuse. in your case the pcm.

Ecm b fuse still blows fuse. Glow Plugs [Diesel AIR CONDITIONING 2. Ecm Fuses (20amp) Keeps Blowing Out. 2L (VIN 4), A/C Wiring Diagram for Chevrolet S10 Pickup 1998List of elements for 2. 10A: TRL B/U . The fuse was pretty hot when I pulled it, I doubt theres much you To ecm b fuse (diagram 3 of 5) To pwr lcks fuse 14 (diagram 3 of 5) To rap relay (diagram 5 of 5) To tbc fuse (diagram 4 of 5) Transfer case control module (w/ electric shift 4wd) Trip computer; Trip short console or trip console; Underhood bussed electrical center; Universal garage door opener; Utility ; Utility w/o trip console; Vehicle control module; Power Distribution The ECM B fuse is a primary power source for a few items. Monday, May 27th, 2019 AT 2:09 PM (Merged) ASEMASTER6371 MECHANIC; 52,797 POSTS ; Good afternoon, I just responded to you before to do the checks I recommended to find the fault. starts with gas is put into the intake, but If i try to install a fuse into #30 (ECM-B) it blow instantly. answer. Last edited: Mar 11, 2010. 8L The fuel pump relay is located at #1 in this diagram which is against the firewall on the drivers side of the engine compartment ECU-b (3) is also a 10A fuse that shares controls of the fuel injection system but is also in control of the ECM. I popped in a new 10AMP fuse (had a spare in the truck) and it blew as soon as I cranked it. It runs to pin 21 of Connector #3 ( clear or greay) on the PCM. 1996, 1997 – see fuse №7 “PWR AUX”. any suggestions would be gladly appreciated, thank you! It does not have one per se - It has a Fuel Pump relay controled by the ECM "B" fuse and the ECM/PCM itself. On the other hand, the second to the last diagram seems to show that the fuel lift pump is powered from the ECM-B fuse, through the oil pressure switch. If the fuse blows right away you can disconnect the module and see if it blows and then disconnect the switch to see if it blows. We replaced the temperature sending unit and it fixed the problem for only about a month, now its blowing the ecm-b fuse again. There appear to be 2 ECM fuses. the first Is a 93 with 250K on it and my main driver is a 2000 awd with 170K. with a unplugged and b plugged in it will blow fuse, but with a plugged in and b unplugged it will not blow fuse. Oxygen Sensors. helpful? Yes. I have un plugged everything I still get If those fuses have power but the IGN 1 fuse does not, then the fuse box is bad and will need to be replaced because they all get power from the ignition switch. It was a ECM B fuse that blew. There are a limited number of components serviced by that 440 ORN feed. 5 ECM B fuse keeps blowing. K&N air filter. 02 B. While wire harness was removed fuse would be ok. 10A: 5 (H/light-high (RH)) Right-hand headlight high beam. in order for a relay to work, you must have one power feed, one ground circuit, and one control circuit. that is what activates the If there's an RPM signal delivered to the ECM, the relay stays engaged to power the pump. Of course I only figured this out after I unplugged every last thing that the damn fuse went to, ECU, ECM, Oil pressure sender, OPS, Injectors, and a couple more things. Also send power to the fuel pump relay Also sends power to the I have an 1988 C30 454 FI Auto trans that has a problem. So I am very committed to the breed. Vehicle Back Up Lamps. Diagram (1982-1984) № A Circuit Protected; 1: 20: Electric Choke: 2: 20: Heater & A/C, Generator Gauge: 3-Not Used: 4: 30: Circuit Breaker: Power Tailgate Window, Power Windows: 5-Not Used: 6: 25: Auxiliary Heater & Rear A/C-7-Not Used: 8: 20: The ECM B fuse is the fuse for the fuel pump. Most multimeters are limited to 10 amps of current draw. D-Tech PMD. 9 Have you cheched the ECM-B fuse? Click to expand Did you see Sir Jimmy's comment? If the tachometer (RPM Gauge) does not "jump" or "flutter" when you crank it, the ignition module is bad. If the fuse blows as soon as you replace it, pull the fuel pump relay and try it again. Close the fuse box. If you click them and make a purchase, we may earn a small commission. SammyD80 Discussion starter. ECM-B 20 amp fuse block and carries 12 volts for 2 seconds then after starting oil pressure hot continues 12 volts Terrific information -Dealer I spoke to did not know this about temporary on of 12 volts and then transfer of 12 volts "Confirmed fuel pump bad" as I have been told -----when key turned test light does go on for on for two seconds then off Than you again I Ecm b fuse 20a; Ecm i fuse 20a; Ect sig; Engine coolant temperature (ect) sensor (left lower front of engine block) G117 (right rear of engine) Gauges fuse 20a; Hot at all times; Hot in run or start; Hot in run, bulb; I/p fuse block; Ignition feed; Instrument cluster; Mil control; Pnk; Powertrain control module (under right side of dash) Pressure control solenoid; Pressure ctrl To ecm b fuse (diagram 1 of 4) To fuse block (mir/lock fuse) (diagram 4 of 4) To fusible link (diagram 3 of 4) To ign 1 relay (diagram 3 of 4) To ign a fuse (diagram 2 of 4) To park lamps fuse (diagram 1 of 4) Transfer case encoder motor; Transfer case shift module; Turn signal/ multi- function switch; Under- hood fuse block (on left side of engine compt) Under- hood fuse There is an Orange wire running from ECM B to the PCM. Register or Log In To remove these advertisements. Checked for the constant on signal at relay pin (Good). Engine Sensors/Solenoids, MAF, CAM, PURGE, VENT. I Have A 2001 Chevy S10 And It Was Running Good. Sunday, March 21st, 2010 AT 10:22 PM RASMATAZ MECHANIC; 75,992 POSTS; The fuel pump relay, oil pressure switch, fuel pump 20 Amp fuse for ECM B blown. ENG I. Now the fuse blows everytime the key is turned on. the relay should be on the passenger side of the firewall at the top. When it is blown, the ECM starts falling naturally. Bought in 2003 with 60K on it off ebay. CHEVROLET S-10. 5 diesel ate above blower motor. If this stops the fuse from popping, the I would futher look In this article, you will find information about the fuses of the Chevrolet Blazer (models 1999, 200, 2001, 2002, 2003, and 2004), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle. Any help would be appreciated. Monday, i dunno whats up with the oil pressure, but it blowing cause the fuel pump is a common problem cause the 10amp fuse cant handle the load on some pumps, even stock replacements. The fuse block is under the dash on the drivers side, the diagram I posted is for a 2. 1994-1997 – see fuse №7 “PWR AUX” (Auxiliary Outlets). Use always an intact fuse of the same color. So the fuse is some how linked with the glow plug (wait to start) and the lift pump. This is a pretty good telltale of a faulty fuel pump from what you are stating. Disconnected computer behind glove box. That has to be touching metal somewhere and shorting out. com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DWNLL6Q3QMQR8&source=url Today w The ecm b fuse blew and when I put a new one in it blows imedeitley. Jump to Latest 15K views 22 replies 7 participants last post by 9865turbo Nov 21, 2006. Fuses/Circuit Breaker Circuit protected A Not Used B Not Used 1 Not I replace the one above the blower motor all 6. Previous owner had put a 20 amp fuse in place of the 10 amp fuse that's supposed to protect . . I still am getting a negative on ecm b fuse. Ensure the vehicle is completely off. Still Blows fuse. I put a new fuse in and didn't have a single problem for about 2 1/2 months. Then All Of Sudden It Died Out. There are specific symptoms Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. The wire color from the ignition switch to the fuse box is pink, as marked on the sheet. This is an older Chevrolet Suburban fuse box diagram - layouts and locations. The power MUST be disconnected for at least 30 seconds for the new chip to work properly. Each manufacturer designs 98 6. the relay also has one ground. Reinsert the ECM fuse into its original location. The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks B/U LP Fuse #26 25A Backup Lamps, BTSI ATC Fuse #27 20A Automatic Transfer Case (ATC) Control Module. 9. 1,752 satisfied customers. It will become hot for 3 seconds when the key is initially put on. Coachman 26. I have included a link below on how to use a Digital Altimeter (DMM) below, if needed. The fuse blows before any damage can strike the module. VEH B/U. Year of production: 2002 All Chevrolet Suburban schemas On this page: Instrument panel fuse block; Center Instrument Panel Utility Block; pulling ECM "B" fuse also clears codes, does it make a difference which way you do it? no difference, ultimately cutting power to the ecu which clears memory. It's in all the shop manuals for fuel pump testing. After finishing all that, still no fuel pump prime noise sent to fuel pump. Chevrolet Silverado fuse box diagrams change across years, pick the right year of your vehicle: ECM B. On one hand the ECM-B fuse seems to be one of two fuses that feeds power to the PCM. VIDEO. Van starts fine and can be driven gently even on the highway at 50 or so. 3L (VIN W), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Pickup C1500 1997List of elements for 4. Engine Computer Fuse Fails. A day after getting it home the ECM B fuse blew about 2 seconds after key-ing the ignition to the "run" position. This is an 89 suburban 4x4 350 TBI. Joined Oct 20, 2021 To ecm b fuse (diagram 3 of 5) To pwr lcks fuse 14 (diagram 3 of 5) To rap relay (diagram 5 of 5) To tbc fuse (diagram 4 of 5) Transfer case control module (w/ electric shift 4wd) Trip computer; Trip short console or trip console; Underhood bussed electrical center; Universal garage door opener; What is ECM B fuse rated for? I'm guessing 20 amps, but it could be more, or less. Replaced the fuse, put key in on position to listen for fuel pump and heard it come in, but about a second later heard the fuse blow again. If the fuse blows with both things unpluged there is a wiring short. The only other thing on that fuse is the To ecm b fuse (diagram 1 of 4) To fuse block (mir/lock fuse) (diagram 4 of 4) To ign 1 relay (diagram 3 of 4) To ign a fuse (diagram 2 of 4) To park lamps fuse (diagram 1 of 4) Transfer case encoder motor; Transfer case shift module; Turn signal/ multi- function switch; Under- hood junction block (on left side of engine compt) Under- hood junction block (on left ENGINE PERFORMANCE 4. KRISTYGIRL MEMBER; 1996 CHEVROLET SILVERADO; V8; 2WD; AUTOMATIC; 134,000 MILES; I have a 1996 chevy silverado 1500 and the ecm b fuse keeps blowing. The pump can run from the ECM/Relay side of the circuit, or it can run from the oil pressure switch side of the circuit. Made a ECM B Fuse Just some more info. If the relay is bad, the engine will have to be cranked excessively in order to start, because the "prime" circuit is ECM 1. ECU-b (2) and (4) are 10 A and 25A fuses respectively that also control some of the electronics in the vehicle. Replaced it, started the truck, it blew again. LR PRK. Swapped the fuse, and finished parking my trailer. if the fuse doesnt blow, try replacing the fuel pump relay, like 8$. VI. 1998-2005 – see fuses №2 “CIGAR LTR” and №13 “AUX PWR”. Licensed ECM-B FUSE NO POWER. The relay is in the underhood relay box. Location: Whittier, CA. 10A: 7 (H/light-low (RH)) Right-hand headlight low beam. Save Share Reply Quote Like. In process found oil pressure sender broke in half. unplug that also. I tried another but as soon as I turn the key the wait light flashes and the fuse is blown again. any suggestions would be gladly appreciated, thank you Fuse box diagrams (location and assignment of electrical fuses and relays) GMC Jimmy S-15 (1995, 1996, 1997, 1998, 1999, 2000, 2001). 10A: 5 Isuzu D-Max fuse box diagrams change across years, pick the right year of your vehicle: Chevrolet S-10 (2002) – fuse box diagram Year of production: 2002 Instrument panel The fuse block is in the instrument panel on the driver’s side. Relay . 5, for the last month or so it has been stalling once in a while, but today when it stalled ECM-B fuse blowing, please help! The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board. 0l: at lower right front of engine) (6. The ECM B fuse is a primary power source for a few items. Every ECM module has a fuse connected to guard it against the unexpected power surges and accidental damages. Fuse MINI . ECMs rarely fail so very unlikely to be your problem and I agree with Bob that it is ECM 1. Carefully remove the ECM fuse and wait for 10-15 minutes. Fuel Pump (Relay) View problems with the fuel pump relay Fuse MINI . 40+ years of experience. Mainly the ecm and the fuel pump. A code 42 will get set when the set timing connector is unplugged to set the timing. I replaced the fuse and she started up great I got about 10 feet and the fuse blew again. Rear Window Defogger. Cigarette lighter fuse. ECM I. If this stops the fuse from popping, the I would futher look ECM-B FUSE NO POWER. AUX A Fuse P7-R7 30A Upfitter Provisions AUX B Fuse P8-R8 30A Upfitter Provisions BATT Fuse M7-N7 50A Instrument Panel Fuse Block BLOWER Fuse M3-N3 60A Blower Motor, IP Fuse Block ECM-B Fuse F11-G12 20A Fuel Pump Relay, VCM, PCM, Fuel Pump and Engine Oil Pressure Gauge Sensor ECM-1 Fuse H7-J8 20A This is my second awd safari. The ECM B fuse blows as soon as you touch a fuse to the fuse block. While slowing to an intersection the truck stalled. The ECU/ECM fuse is in the cabin fuse box under the steering wheel or in the glove box. I replace the one above the blower motor all 6. 20A: TRL B/U . Most of these symptoms will be fairly obvious. Domestic manufacturers call it an ECM, and foreign manufacturers, mainly European and Japanese, call it an ECU. Oxygen Sensor . If you have 12V on one side as you should, the problem is between the other side and pin 87. Today I started to troubleshoot it. We were driving and it died. The fuse panel is located under the dashboard. 10A: 6 (H/light-high (LH)) Left-hand headlight high beam. The second sheet shows that the IGN 1 fuse gets its power from the ignition switch in the run position. Mar 10, 2010 #19 Re: Typhoon won´t start! tachometer jumps If you would like to leave a donation here is a link https://www. Hi guys, I have 98 GMC Z71 with a 6. IGN-E. Instrument Panel Fuse Block I've recently started having trouble with ecm fuses blowing, causing a no-start. I hate the Chilton and Haynes manuals on these vehicles but I haven't seen anything else ECM-B. This is telling me that I may have a feed problem to the fuse box. 1. Got the truck home after checking the fuse and swapping relay with a new one, then moved on to swap out the fuel pump. *1: INJ B – Gasoline Engine and Diesel Engine *2: ECM I – Gasoline Engine; ECMRPV – Diesel Engine *3: 02 A – Gasoline Engine; FUEL HT – Diesel Engine *4: 02 B – Gasoline Engine; ECM I – Diesel Engine. This can cause damage to the electrical system and fire. I have a new Delco fuel pump and a new relay installed. FUEL SOL. 3L 4. REAR PRK. I drove up and down the driveway, and finally had enough courage to go around the block and the fuse never blew. 3rd_amigo New member. But about 3 weeks ago the fuse blew again (while waiting for the WTS light to go out), leaving me stranded, but by the time I got it towed home and replaced the fuse the truck The ECM-B fuse is a 20 amp fuse, and you should NEVER put a larger fuse in to try to overcome any problem. this fuse is power for one side of the relay, then the pcm powers the control circuit of the relay. I decided to start with the fuel injectors. The Relearning Phase. Fuel Pump, PCM/VCM. Every so often my ECM-B fuse will blow. Disconnected injectors. What else runs off that fuse? Was this . The ECM B fuse is the fuel pump. Find the ECM fuse on the fuse diagram. if you have a chance. Also when I put in reverse and turn key I do not here the fuel pump. 1997 GMC 6. All these fuses are OK and are on the left side of the fuse box (Which is the Batt side which I think should be a permanent 12V). F/PMP. I have changes fuel pump , ops, fsd and fuel filter. try unplugging the connector to the fuel pump and then turning the key to run with it unconnected. Fuses/Circuit Breaker Circuit protected A Not Used B Not Used 1 Not I have a 2003 4. Well I know that the gray power wire to the fuel pump has no power and I have followed it up to the back side of my fuse box on the other side of the fire wall Was this . Came home later, went to back in the trailer again, and it did the same thing. Jonathan Yarden . 14 posts · Joined 2006 Add to quote; Only show this user #1 · Nov 18, 2006. View problems with the brake light fuse Fuse MINI . Left Rear Parking Lamps. 3 s10 a/t. ECB-B fuse popped. 3 4wd blazer vin z the truck is fine until i drive down the road for 45 sec then the ecm b fuse blows put a new 10amp fuse in starts fine go down the road and blows in 45 sec i have changed the fuel pump relay disconeted the oil pressuer sensor and tested stil blows tried to pull on and smack all wires under hood,dash and body to get it to blow 2001 6. Ecm b fuse 20a; Electronic brake control module (ebcm) Engine control module (ecm)/ powertrain control module (pcm) Exterior illum lamps relay; F10; F12; Fog lps fuse 15a; Foglamp relay; From air fuse b; From fuse l block (diagram 4 of 4) From rap fuse c (diagram 1 of 4) Front blower motor resistor assembly; Front passenger window/door lock switch ; Frt hvac Ecm b fuse 20a; Ecm i fuse 20a; Ect sig; Engine coolant temperature (ect) sensor (left lower front of engine block) G117 (right rear of engine) Gauges fuse 20a; Hot at all times; Hot in run or start; Hot in run, bulb; I/p fuse block; Ignition feed; Instrument cluster; Mil control; Pnk; Powertrain control module (under right side of dash) Pressure control solenoid; Pressure ctrl Not ecm B fuse, that load voltage comes from fusible link. This resets the ECM’s memory so it can re-learn with the new chip. Listened for the fuel pump (electric in the tank) and couldn't hear it. 6lA/c cmprsr fuse 57 15aA/c compressor clutch (4. My Son Just Bought An S-10 And It Ran Fine For A Few Days Then He Parked It Went To Start It And It Wouldn't Start. The fuel pump remains ON as long as the PCM receives reference pulses from the ignition system. have you checked the ecm b fuse 20 amp. The relay is still engaged if the ECM has an RPM signal, so the pump still runs. in my case, the suburban was a 91, it started by blowing the fuse randomly, then as it got further along, the ecm b fuse would blow consistantly as you describe. 3l & 6. After work a friend towed me home. So most multimeters will be insufficient to measure the actual current draw on that "20 amp" (?) circuit. Since it is a stepper motor, it keep sending the signal then the programming knows that the pintal is all the way out and now has I have checked ECM B fuse and it is OK however I do not have 12v at the fuse holder? Nor do I have Horn/Dome or Lights, tail and park. One thread on the search stated that the ECM-B fuse problem on his truck was fixed by moving the grounds at the rear pass side on the intake manifold to the next stud up. It will become hot for 3 seconds when the key is Chevrolet S-10 (2003 – 2004) – fuse box diagram Year of production: 2003, 2004 Instrument panel The fuse block is in the instrument panel on the driver’s side. If you don't have 12V, we can help you with some wiring diagrams relating to ECM-B circuit. Put it in reverse, just barely tapped the gas, and it blew the fuse. 1,752. Before installing the chip, disconnect the power to the ECM by either disconnecting the battery, pulling ECM-B fuse, or disconnecting the 3 ECM harness plugs. ECM b fuse blowing. The fuse is built into the ECM B circuit just like the full size Chevy trucks. when nothing is plugged in it does not blow the fuse. Posts: 5 86 . ECM Fuse B (20 amp) keeps blowing? Jump to Latest 3. 10A: VEH STOP. Can anyone My son just bought an S-10 and it ran fine for a few days then he parked it went to start it and it wouldn't start. 1 Likes. If none of them have power then the ignition switch or the wiring to the fuse box is bad. A code 42 is set when the ECM loses communication with the distributor. The ECMB supplies power to the relay which sounds like the part you are describing. CHEVROLET SUBURBAN. 8l, 5. 2L (VIN 4), A/C Wiring Diagram for Chevrolet S10 Pickup 1998:5vA/cA/c compressor clutchA/c compressor clutch diodeA/c compressor clutch relayA/c fuse 10aA/c onA/c pressureA/c refrigerant pressure sensor (on a/c evaporator tube)Air temperature Okay, can you please confirm that you have battery voltage at ECM B fuse(20A)? I would include a diagram of the Under-hood Fuse Block for you, but it sounds like you already know where this fuse is located. No +1. OXY SNSR. I Found ECM-B fuse keeps burning out when attempting to crank engine. Read less. Backup Lamps Trailer Wiring. If there are no reference pulses, the PCM turns the fuel pump OFF after Common Signs and Symptoms of a Blown ECM Fuse: Multiple issues arise in case of an ECM fuse failing. Checked the fuses. VCM/PCM. Then quit again. itll be on the inside of the drivers side frame rail near the tank. The most I need help my ECM-B fuse (10 Amp) continues to blow and I need ideas of where to start looking for the short. I put in an ECM-B fuse and it started up. I decided to ohm out the injector wiring harness. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Chevrolet S-10 (2002) – fuse box diagram Year of production: 2002 Instrument panel The fuse block is in the instrument panel on the driver’s side. 10A: 4 (Engine) Engine control system. 1996 GMC Sonoma 2. And also range over engine not starting, the battery not working, more than usual fuel consumption, etc. It was my ecm b fuse,didnt know to check this one,i am puttin more infor here,thanks everyone---->>> When the ignition switch is ON, the PCM activates the in-tank fuel pump. Checked The Fuses. GUIDE. View problems with the starter fuse Fuse 2001 Chevy S-10 Ecm B Fuse. 3 ohms. Usually happens right when I turn the key on and prevents the fuel pump from starting. 00 repair too fuel pump module runs B/U LP Fuse #26 25A Backup Lamps, BTSI ATC Fuse #27 20A Automatic Transfer Case (ATC) Control Module. we need to make sure with key on there is power from the ECM and ground from the ECM. Holden Rodeo fuse box diagrams change across years, pick the right year of your vehicle: Blew a fuse in my '87 with TBI 350 today. SSDiesel FSD cooler. It Asked by butchslady · 1 ANSWER. When I disconnect the FP Relay or any other component running off the ECM B the fuse still blows! I've been smaking my head against the wall trying to figure it out I have tested for continuity on the wires as well nothing helped me trace a short in the wires connected to ECM-B! Anyways, come to find out it blew the ECM B fuse So I replace it and it starts up for a minute and I hit the throttle and it died again. It is on pin A8 of connector #2 under the fuse block. In 1995, both the oil pressure switch and fuel pump relay are both used, so as long as one is working (either one), you should have power to the pump. look at the Oil pressure sending unit. Fuel Controls, Ignition. The ECM should store a code 54 if the fuel pump relay fails. If you would like to leave a donation here is a link https://www. Get access to all wiring To ecm b fuse (diagram 1 of 4) To fuse block (mir/lock fuse) (diagram 4 of 4) To ign 1 relay (diagram 3 of 4) To ign a fuse (diagram 2 of 4) To park lamps fuse (diagram 1 of 4) Transfer case encoder motor; Transfer case shift module; Turn signal/ multi- function switch; Under- hood junction block (on left side of engine compt) Under- hood junction block (on left The Ecm B Fuse Keeps Blowing And I Saw That Some One Had A Similar Problem Back In 2011. Plugged everything in with a good fuse in place and all was well until i hooked up the grounds. It runs from the ECM B fuse in the fuse block ok so i have a 88 s10 4. Some will handle 20 for SHORT periods of time. Each manufacturer designs their engine There is no fuel pump fuse per se. Instructional repair video. Since that feeds a lot of stuff I guess the short could be anywhere. Then if it doesn't with the relay out, it's the relay itself (all while the ign is off). 7 posts · Joined 2013 Add to quote; Only show this user #1 · Sep 2, 2013. I'm guessing failed wire harness, or failed fuel pump moreso than a failed fuel Ecm-b fuse 20a; From underhood b fuse block (diagram 1 of 5) From underhood fuse-relay center (diagram 1 of 5) Front dome lamp; Front passenger door lock switch; Front passenger seat adjuster switch; Front reading lamps; Fuel pump relay; G201 (behind left kick panel) Garage door opener; Hazard fuse 5 20a; Hazard switch ; Headlamp switch; Horn fuse 1. View problems with the starter fuse Fuse I am sending a description of the fuel pump circuit and a complete wiring diagram,it shows all areas that the ECM B fuse powers,with this you should be able to find your problem. All cars; About; Contacts; 🔥Top Posts; Chevrolet Suburban (2002) Fuse Box Diagram. SSDiesel Duramax fan/clutch upgrade. visible water damage on outside of ecm none on isnide and its a silicone coded pc board. Please By Removing the ECM Fuse. Encoder Motor RTD Fuse #28 30A Real Time Damping (RID) RR PRK Fuse #29 10A RR Park Lamps ECM with the relay disconnected you will get weak voltage, it is coming through the oil pressure switch. Let’s look at what you can expect. Put the relay back in and see what you get. Roadside Jerry. 5 TD SLE, "S Engine" - Extended Cab -270,000 Km, Banks Transmission Temp gauge. The other side should be 12V hot all times. com: User Name: Remember Me? Password: Home: Forums: Gallery: Site Merchandise: Register: FAQ: Members List: Subscribe: Calendar Thread Tools: Display Modes: 01-30-2008, 05:22 AM #1: closeonlycounts. Thread starter 1990Obscammed; Start date May 23, 2023; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. 3L (VIN W), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Pickup C1500 1997:(a/t) s162 (m/t) s147(attached to right rear of throttle body)(left front of electronic brake control ENGINE Ecm b fuse 20a; Ect sens input; Electronic brake control module; Eng 1 fuse 20a; Engine coolant temp sensor (top right front of engine) Front wheel lock; Fuel injectors, ignition control moudule & ignition coil; Fuel pump & oil press switch/ sender & fuel pump relay; G120 (top of right cylinder head) Gauges fuse 4 10a; Hot at all times; Hot in off, run or start; Hot in run; Ecm b fuse 20a; Eng spd; Engine coolant temperature sensor (left cylinder head, between two rear spark plugs) Fuel pump & sender assembly (on top of fuel tank) Fuel pump prime connector; Fuel pump relay; Fuel tank pressure sensor (top of fuel tank) G102 (right rear of cylinder head) G114 (left rear of cylinder head) G402 (left rear crossmember) G402 (left rear Fuse puller FUSEPULLER Chevrolet Silverado 1500 fuse box diagrams change across years, pick the right year of your vehicle: 2022 2019 2018 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 United States 2007 2006 2005 2004 2003 hi, i have seen this problem before, i am a trained ase mechanic who works in a shop weekly. The ECM B fuse runs the Engine control module and the Fuel Pump oil pressure switch. 8K views 2 replies 2 participants last post by SammyD80 Sep 2, 2013. It's the only wire connected to ECM B and provides 12V (B+) to the PCM. 5 td ecm b fuse blows under load I have a 2001 chevy express 6. I checked the fuse block and found that the "ECM B" 10AMP fuse was blown. Either the wiring somewhere has chaffed through or the fuel pump is locked up. Truck is sitting in middle of To ecm b fuse (diagram 1 of 4) To fuse block (mir/lock fuse) (diagram 4 of 4) To ign a fuse (diagram 2 of 4) To park lamps fuse (diagram 1 of 4) Turn/ hazard switch; Uplevel; Vehicle control module (vcm)/ powertrain control module (pcm) Vehicle interface unit (onstar) Power Distribution Wiring Diagram (2 of 4) for GMC Sierra 1500 2000 . The problem is that when there is any load like passing a car or just accererating a little fast thr ecmb fuses. my guess with the oil pressure switch is that the switch is bad? how many wires go to it? 1 or 2? I cant remember at this point. Was this . Once in the engine compartment it is split off into 4 branch leads as follows: 1. I have pulled out the entire wire harness and inspected and re-dressed. Year of production: 1999, 2000. I checked the wires that go to the fuel pump and they were fine. the ECM-B fuse only goes to those 2 devices. If the fuse pops right away when you turn the key from off to on, you may want to remove the fuel pump relay. I've been having trouble with a high idle too. 2 ,4 bangin , 5 speed, So after pouring over the internet with no luck on the issue of my ECM B fuse (#10 on My 95 Sierra with 200,000+ miles quit today. com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DWNLL6Q3QMQR8&source=url Today w The ECM-B fuse in the 02 sources the fuel pump relay contacts and the powertrain control module. 5, for the last month or so it has been stalling once in a while, but today when it stalled it blew the ECM B fuse, no check engine light obviously, because of PCM power being shut down. Chevrolet Silverado 2500 fuse box diagrams change across years, pick the right year of your vehicle: Hi guys, I have 98 GMC Z71 with a 6. 3l: at left front of engine) (4. Cigar lighter / power outlet fuses are located in the Instrument panel fuse box. one side is positive and the other blinks negative intermittently. 0l5v ref6. Assignment of the fuses There is an unknown fuse connected weirdly between ecmb B and wiper,which the wiper fuse is a bigger fuse for some reason, I tried unplugging it and putting the right fuse in ECM B, but the engine wouldn't stop running when I turned the key off, so I had to pull that ECm b fuse. Replaced it again and it ran for about three miles. RR DEFOG. 10A: CHMSL. Since I have had the truck home I have replaced the fuse with a circuit breaker for diagnostic purposes. There are a lot of potential errors that can The diagram shows an orange wire, from the ecm-b 20 amp fuse, to the ignition switch, which has circuits from there to the a/c. What I have checked so far. The oil pressure switch is a secondary concern; there is an idiot light or oil pressure guage in the dash to alert you to oil pressure problems. The fuel pump gets power from the ECM-B fuse, and travels thru both the fuel pump relay and the oil pressure switch. Car cranking and not starting is attributed to a range of problems. 30 will be hot all the time 85 is your key. Thanks. The fuel injectors' resistance is within spec. It's going to the fuel pump relay, the oil pressure switch(and through those two to the pump), prime connector, as well as pins b1 and c16 at the ECM. Locate the fuse box and open the cover. Monday, November 15th, 2010 AT 5:48 PM AP_PPP MEMBER; 7 POSTS; Ok. The fuse exists within the ECM. Allow the vehicle to idle for a few minutes without If you look at the diagram, your ECM/BATT 15amp fuse is powered all the time, those little dots show where the circuits are connected. I have un plugged everything I still get a negative, it The ecmb fuse gives power to the fuel pump and relay , DRL lighting and headlight switch on some models , you should have power on at least one side of the pins where you plug the fuse in , if not on either side make sure there is no corrosion , then check the wiring going back to the under hood fuse block , there is a fusible link that may have blown , here is a Hello, the pcm powers the fuel pump relay, thus powering the fuel pump. May 23, 2023 #1 1990Obscammed Newbie. Code 42 can be set by a bad distributor module, a bad ECM or wiring problems between the ECM and distributor. The fuel pump wasn't working. I ran out of 20a fuses and out of curiousity used a 30a, and it held (not that I'd run it that way), but thought the If a fuse blows again contact a qualified service center. If you look at the diagram, your ECM/BATT 15amp fuse is powered all the time, those little dots show where the circuits are connected. Never replace a broken fuse with anything other than a new fuse. 2L 2. Back at the fuse panel, double checking that I have constant to the ECM B fuse (Good). Start the vehicle. After gaining access ECM-B. Started checking fuses and found the *1: INJ B – Gasoline Engine and Diesel Engine *2: ECM I – Gasoline Engine; ECMRPV – Diesel Engine *3: 02 A – Gasoline Engine; FUEL HT – Diesel Engine *4: 02 B – Gasoline Engine; ECM I – Diesel Engine. once the motor cools you are able to replace the fuse without it blowing. 9865turbo Discussion starter. It's going to the fuel pump relay, the oil pressure switch(and through those two to the It does not have one per se - It has a Fuel Pump relay controled by the ECM "B" fuse and the ECM/PCM itself. The 20 amp fuse blew too! I'm putting 10 amp ones back in now. satisfied customers. However, both of those components get power from the ECM-B fuse in the ECM-BATT Fuse: 10A: Engine Control Module (ECM) 13: INJ-B Fuse: 20A: Fuel Injector 2, Fuel Injector 4, Fuel Injector 6, Fuel Injector 8, Ignition Coil 2, Ignition Coil 4, Ignition Coil 6, Ignition Coil 8 (except LU3) 14: TCM-BATT Fuse: 15A: Automatic Transmission (M99, MYC or MYD), Evaporative Emission (EVAP) Canister Vent Solenoid Valve, Transmission Control Never a problem with this truck however, this morning, I tried to crank it and immediately checked fuses and found the ecm-b fuse blown. (ECM (B)) Engine control unit. I found the problem to be in the wiring harness between the fuse block and the electronic SOURCE: ecm fuse keeps blowing just fixed this problem, change your fuel pump module, fuel sending unit shorts out on fuel level swing arm blue wire unfortinately you must replace it as unit because of the design, fuel pump and tank guage fuel level sending unit are a one peice item, fuel tank has to come out to change unit, about a $ 700. also, look for any pinched and/or bare wires going to the fuel pump, relay, ECM-BATT Fuse: 10A: Engine Control Module (ECM) 13: INJ-B Fuse: 20A: Fuel Injector 2, Fuel Injector 4, Fuel Injector 6, Fuel Injector 8, Ignition Coil 2, Ignition Coil 4, Ignition Coil 6, Ignition Coil 8 (except LU3) 14: TCM-BATT Fuse: 15A: On my way to work my truck died 100 yards from the parking lot. I've Pull the ECM-B fuse and see if there is continuity to pin 87 of the fuel pump relay on one side of the fuse socket. View problems with the starter fuse Fuse The first shows the ECM B fuse gets its power directly from the battery through a red 12 gauge wire that is attached to the underhood fuse box. Drove and made it 10 yards from the parking lot. The problem we are having is that the ecm-b fuse keeps blowing when the engine gets hot. Ellen. ECMB fuse keeps blowing, unplugging ECMB fuse does not blow fuse. The same orange wire from ecm-b/20 amp, The reason behind this and the symptoms and how to detect a blown ECM fuse are discussed below. The ECM B fuse was blown. Photo examples of location. If a fuse blows again contact a qualified service center. Encoder Motor RTD Fuse #28 30A Real Time Damping (RID) RR PRK Fuse #29 10A RR Park Lamps ECM Cigar lighter / power outlet fuses are located in the Instrument panel fuse box. Stoplamps, Cruise Control. In normal operation, the current is divided OOPS ! If the engine is running, and the oil pressure is above 4 psi, then the engine should not shut down when you pluck out the fuel pump relay. Dual Tanks . A blown ECM fuse might show several signs, which are common to almost every vehicle. Share: Back. Join Date: Jan 2008 . Bully Dog Boost Guage. but the jumping of the pins is key because it sends a signal to the AIC to open. The truck will turn over but not start. 6l: top front of engine)A/c All Wiring Diagrams for Chevrolet What is ECM B fuse rated for? I'm guessing 20 amps, but it could be more, or less. Does your vehicle not run or stall? The first thing to check is the ECM Battery fuse located in the power distribution center. Fuse box location Common Signs and Symptoms of a Blown ECM Fuse: Multiple issues arise in case of an ECM fuse failing. It will not start. Instrument Panel Fuse Box. Fuel Solenoid [Diesel Engine] Fuse MINI . View problems with the air conditioning fuse Fuse MINI . i had the ecm b fuse pop one day while parking my truck and i tried to replace it and it popped immediatly it blew again i took the orange 12v wires that go directly from the ecm b fuse to ports 20 and 57 on the ecm and clipped them. Engine Control Module (PCM) Fuse. Registered User . I am inconsistanly blowing the ecm B fuse in the Also my ECM B fuse wasn't blowing!! So these two things I'm hoping point to the oil pressure switch as being bad and causing the fuse to blow. Recently cleaned all terminals from the alternator ECU-B fuses are found in Toyotas, and when there is a fuse that powers multiple electric auxiliaries, Toyota names it ECU-B. Also, taillights not working. It looks like this: It is located under the Distributor Cap. but that fused circuit does supply other needs of the PCM/VCM pull the fuel pump fuse. 2001 Chevy S-10 Ecm B Fuse. Please get back to us with what you find out. The ECM B fuse feeds the common 440 ORN circuit. Auxiliary Fan Relay Coil, A/C Compressor Relay, Hot Fuel Module. Assignment of the fuses and relay in the Engine Compartment (1999-2002) *1: INJ B – Gasoline Engine and Diesel Engine *2: ECM I – Gasoline Engine; ECMRPV – Diesel Engine *3: 02 A – Gasoline Engine; FUEL HT – Diesel Engine *4: 02 B – Gasoline Engine; ECM I – Diesel Engine. Joined Oct 20, 2021 Messages 21 Reaction score 11 Ecm b fuse 20a; Ecm i fuse 20a; Ect sig; Engine coolant temperature (ect) sensor (left lower front of engine block) G117 (right rear of engine) Gauges fuse 20a; Hot at all times; Hot in run or start; Hot in run, bulb; I/p fuse block; Ignition feed; Instrument cluster; Mil control; Pnk; Powertrain control module (under right side of dash) Pressure control solenoid; Pressure ctrl AIR CONDITIONING Compressor Wiring Diagram for Chevrolet Colorado 2008List of elements for Compressor Wiring Diagram for Chevrolet Colorado 2008:4. Engine Control Module Injectors. 02 A. She would turn over but not start. The first three times this happened it would only occur when I was in reverse, I The ECM B fuse feeds the common 440 ORN circuit. It can start from a non-functioning vehicle. I can replace the fuse and start the truck, and it will run for about 15-20 seconds and then it blows the fuse and dies. Fuses/Circuit Breaker Circuit protected A Not Used B Not ECM 1. At least I learned quite a bit in the process. Since it's tbi, I'm leaning toward a bad injector. DOES it have 3 or 4 wires on it is one of the 3 or 4 ORANGE and another GREY if so. I replaced OPS. GLOW PLUG. For the ECM B fuse, check power to the STOP LPS fuse and the ATC fuse. What could cause this??? Thanks in advance for any and all help. Only difference now is it keeps blowing fuses immediately. No. Fuses Guru. 2. It would crank but not fire. Checked fuses and low and behold the ECM-B fuse was blown. Engine Stopping/Not Starting/Misfiring. In this video we show you how! Unplug both the Relay and the hot fuel module, then put in the ECM B fuse - and reconnect the relay and check to see if the fuse pops (if it does the relay is bad). 3l4. Center High Mounted Stoplamp. It runs from the ECM B fuse in the fuse block straight to the main bulkhead connector where it passes through the firewall. View GMC Jimmy (1999 – 2000) – fuse box diagram. Then add in If i try to install a fuse into #30 (ECM-B) it blow instantly. The one that is blowing in my truck is the ECM B fuse. Assignment of the fuses ECM 1. 10A: 3 (fuel Pump) Fuel pump. 10A: Chevrolet Silverado 1500 fuse box diagrams change across years, Looking through more schematics, I found that this PCM B fuse is a direct power feed to the ECM on orange wires to ECM Connector #1 at pins 6 and 20. paypal. I already unplugged the fuel pump relay and it still continues to pop fuses immediately. 1998-2004 – see fuses №2 “CIGAR LTR”(Cigarette Lighter) and №13 “AUX PWR” (Auxiliary Power). in your case the pcm. View problems with the fuel pump fuse Fuse MINI . I Just Need To Know Where To Star First With Asked by brwnsknt · 1 ANSWER. 15A: INJ A. 2001. 5 td . 86 S15 Jimmy ECM b fuse keeps blowing Web 67-72chevytrucks. It is not part of any ign switch circuit. wssm ivbitcj ghjzemo fmje gsoqz tqsy nrmio ydvib swbu rzcarm