ECM Codes
i am getting to codes when i ground out the a&b port. I count the flashes. the first one is 55 and the second is 84. i did have a print out of all of them but i cant find it now i need it. if any knows what they are let me know thanks
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DTC - 55 ECM error
there is no code 84 ---AutoMerged DoublePost--- here a list so next time need it GM OBD-1 Diagnostic Trouble Codes For 1995-previous model year EFI-equipped GM vehicles. NOTE: Some codes not supported on all models, consult your specific vehicle's service manual for the correct trouble code list and description for your application. DTC - 12 No distributor reference pulse (diagnostic test active) DTC - 13 Oxygen sensor circuit open or no activity DTC - 13 Left bank O2 sensor circuit open or no activity DTC - 14 Engine coolant temp sensor error (high temp indicated) DTC - 15 Engine coolant temp sensor error (low temp indicated) DTC - 16 System voltage too low DTC - 17 Camshaft position sensor error DTC - 21 Throttle Position sensor error (signal high) DTC - 22 Throttle position sensor error (signal low) DTC - 23 Intake air temp sensor error (low temp indicated) DTC - 24 Vehicle speed sensor error (open circuit or no activity) DTC - 25 Intake air temp sensor error (high temp indicated) DTC - 26 Quad Driver Module (QDM A) error DTC - 28 Auto transmission range pressure switch error DTC - 31 Wastegate solenoid circuit error DTC - 31 Gear Position Switch (PRNDL) error DTC - 32 EGR system failure DTC - 33 MAP sensor circuit error (signal high indicating low vacuum) DTC - 34 MAP sensor circuit error (signal low indicating high vacuum) DTC - 35 IAC problem or idle error DTC - 36 MAF sensor error DTC - 36 24x Crankshaft position sensor circuit error DTC - 36 4T60-E Shifting Error DTC - 37 TCC brake switch circuit error DTC - 38 TCC brake switch circuit error DTC - 39 Clutch switch circuit error DTC - 39 TCC error DTC - 41 Ignition control error DTC - 41 MEM-CAL error DTC - 41 C³I Cam Sensor Signal error DTC - 42 Ignition bypass circuit error DTC - 43 Knock sensor error DTC - 44 Oxygen sensor error (lean condition indicated) DTC - 44 Left bank O2 sensor error (lean condition indicated) DTC - 45 Oxygen sensor error (rich condition indicated) DTC - 45 Left bank O2 sensor error (rich condition indicated) DTC - 46 Pass-Key II (VATS) system error - circuit out of freq range DTC - 47 UART (serial data) circuit error DTC - 51 PROM error DTC - 51 Incorrect MEM-CAL DTC - 52 Fuel cal-pak incorrect or missing DTC - 53 System voltage too high DTC - 53 Digital EGR Valve solenoid 1 error DTC - 54 Fuel pump circuit low voltage DTC - 54 Digital EGR Valve solenoid 2 error DTC - 55 ECM error DTC - 55 Digital EGR Valve solenoid 3 error DTC - 56 Quad Driver Module (QDM B) error DTC - 57 Boost Control error DTC - 58 Trans fluid temp sensor circuit error (low voltage) DTC - 58 VATS system error DTC - 59 Trans fluid temp sensor circuit error (high voltage) DTC - 61 A/C system performance DTC - 63 Right bank O2 sensor circuit error DTC - 63 MAP sensor circuit signal voltage high (low vacuum indicated) DTC - 64 Right bank O2 sensor lean exhaust indicated DTC - 64 MAP sensor circuit signal voltage low (high vacuum indicated) DTC - 65 Right bank O2 sensor rich exhaust indicated DTC - 66 A/C pressure sensor circuit error (low pressure indicated) DTC - 67 A/C pressure sensor circuit error DTC - 68 A/C clutch relay circuit error (shorted to ground) DTC - 69 A/C clutch relay circuit error (open circuit indicated) DTC - 69 A/C high pressure switch error DTC - 70 A/C pressure sensor circuit error (high pressure indicated) DTC - 71 A/C evaporator temp sensor circuit error (low temp indicated) DTC - 72 VSS signal circuit error DTC - 73 A/C evaporator temp sensor circuit error (high temp indicated) DTC - 75 Digital EGR solenoid #1 circuit error DTC - 76 Digital EGR solenoid #2 circuit error DTC - 77 Digital EGR solenoid #3 circuit error DTC - 79 Transmission fluid overtemp DTC - 80 Transmission component slipping DTC - 82 3x Crankshaft position sensor circuit error DTC - 85 PROM error DTC - 86 A/D error DTC - 87 EEPROM error (flash memory error) DTC - 90 TCC error DTC - 93 Transmission pressure control solenoid circuit error DTC - 96 Transmission system voltage low DTC - 98 Invalid PCM program DTC - 99 Invalid PCM program ---AutoMerged DoublePost--- found code 84 for you go here Reading Codes *DTC 84 - Accelerator Pedal Position Circuit Fault |
i see there are 2 codes for 55
DTC - 55 ECM error DTC - 55 Digital EGR Valve solenoid 3 error I just put a new ECM in it tonight. It started right up but now my Service engine soon light is staying on. I dont know if the new ECM has to take some time to read everything or what i m hoping it goes off. I have it out side running now i will give it a little bit and go out and read the codes off the new ECM to see what i get. What is a Digital EGR Valve solenoid 3 error anyways. the ECM error i kinda get but the other i dont kno wanything about. what should i do to start to figure this out. ---AutoMerged DoublePost--- now i m getting a DTC - 17 Camshaft position sensor error and a DTC - 43 Knock sensor error and a code 18 witch there isnt a 18. this truck is getting on my nerves. I can win with this thing |
Try clearing the codes this way may be accomplished by simultaneously depressing the brake and accelerator pedals fully while the PCM is in diagnostic mode (terminals A and B connected). It will not appear that you have cleared the codes until the next time you power up in diagnostic mode
---AutoMerged DoublePost--- your truck maybe learning right now ---AutoMerged DoublePost--- for get the first list gave you there not all there sorry DTC 13 - Engine Shutoff Solenoid Circuit Fault DTC 14 - Engine Coolant Temperature (ECT) Sensor Circuit Low (High Temp Indicated) DTC 15 - Engine Coolant Temperature (ECT) Sensor Circuit High (Low Temp Indicated) DTC 16 - Vehicle Speed Sensor Buffer Fault DTC 17 - High Resolution Circuit Fault DTC 18 - Pump Cam Reference Pulse Error DTC 19 - Crankshaft Position Reference Error DTC 21 - Accelerator Pedal Position 1 Circuit High DTC 22 - Accelerator Pedal Position 1 Circuit Low DTC 23 - Accelerator Pedal Position 1 Circuit Range Fault *DTC 24 - Vehicle Speed Sensor Circuit Low (Output Speed Signal) DTC 25 - Accelerator Pedal Position 2 Circuit High DTC 26 - Accelerator Pedal Position 2 Circuit Low DTC 27 - Accelerator Pedal Position 2 Circuit Range Fault *DTC 28 - Transmission Range Pressure Switch Circuit DTC 29 - Glow Plug Relay Fault DTC 31 - EGR Control Pressure/Baro Sensor Circuit Low (High Vacuum) DTC 32 - EGR Circuit Error DTC 33 - EGR Control Pressure/Baro Sensor Circuit High DTC 34 - Injection Timing Stepper Motor Fault DTC 35 - Injection Pulse Width Error (Response Time Short) DTC 36 - Injection Pulse Width Error (Response Time Long) *DTC 37 - TCC Brake Switch Stuck "ON" *DTC 38 - TCC Brake Switch Stuck "OFF" *DTC 39 - TCC Stuck "OFF" DTC 41 - Brake Switch Circuit Fault DTC 42 - Fuel Temperature Circuit Low (High Temp Indicated) DTC 43 - Fuel Temperature Circuit High (Low Temp Indicated) DTC 44 - EGR Pulse Width Error DTC 45 - EGR Vent Error DTC 46 - Malfunction Indicator Lamp (MIL) Circuit Fault DTC 47 - Intake Air Temperature Sensor Circuit Low (High Temp Indicated) DTC 48 - Intake Air Temperature Sensor Circuit High (Low Temp Indicated) DTC 49 - Service Throttle Soon Lamp Circuit Fault DTC 51 - PROM Error *DTC 52 - System Voltage High Long *DTC 53 - System Voltage High DTC 54 PCM fuel circuit error DTC 56 - Injection Pump Calibration Resistor Error *DTC 57 - PCM 5 Volt Shorted *DTC 58 - Transmission Fluid Temp Circuit Low *DTC 59 - Transmission Fluid Temp Circuit High DTC 61 - Turbo Boost Sensor Circuit High DTC 62 - Turbo Boost Sensor Circuit Low DTC 63 - Accelerator Pedal Position 3 Circuit High DTC 64 - Accelerator Pedal Position 3 Circuit Low DTC 65 - Accelerator Pedal Position 3 Circuit Range Fault *DTC 68 - Transmission Component Slipping *DTC 69 - TCC Stuck "ON" DTC 71 - Set/Coast Switch Fault (Cruise Control) *DTC 72 - Vehicle Speed Sensor Circuit Loss (Output Speed Signal) *DTC 73 - Pressure Control Solenoid Circuit (Current Error) *DTC 74 - Transmission Input Speed (TIS) Sensor Circuit *DTC 75 - System Voltage Low DTC 76 - Resume/Accel Switch Fault (Cruise Control) DTC 78 - Turbo Wastegate Solenoid Fault *DTC 79 - Transmission Fluid Over-temperature *DTC 81 - 2-3 Shift Solenoid Circuit Fault *DTC 82 - 1-2 Shift Solenoid Circuit Fault *DTC 83 - TCC PWM Solenoid Circuit Fault *DTC 84 - Accelerator Pedal Position Circuit Fault *DTC 85 - Undefined Ratio Error *DTC 86 - Low Ratio Error *DTC 87 - High Ratio Error DTC 88 - TDC (Top Dead Center) Offset Error DTC 91 - #1 Cylinder Balance Fault DTC 92 - #2 Cylinder Balance Fault DTC 93 - #3 Cylinder Balance Fault DTC 94 - #4 Cylinder Balance Fault DTC 95 - #5 Cylinder Balance Fault DTC 96 - #6 Cylinder Balance Fault DTC 97 - #7 Cylinder Balance Fault DTC 98 - #8 Cylinder Balance Fault DTC 99 - Accelerator Pedal Position 2 (5 Volt Reference Fault) |
I hope it learns fast i m getting
DTC 17 - High Resolution Circuit Fault DTC 18 - Pump Cam Reference Pulse Error DTC 35 - Injection Pulse Width Error (Response Time Short) DTC 43 - Fuel Temperature Circuit High (Low Temp Indicated) I dont know what any of this means but like crazy said it might be learning witch i hope thats what it is. I will try to reset the codes also. Now i have never heard of this brake pedal and gas pedal thing before. I use my jumper from a to b then turn the key on and press both pedals all the way down. Is this correct. |
I dont know what any of this means but like crazy said it might be learning witch i hope thats what it is. I will try to reset the codes also. Now i have never heard of this brake pedal and gas pedal thing before. I use my jumper from a to b then turn the key on and press both pedals all the way down. Is this correct. |
I dont know if i m doing this right but it didnt do anything. I use my jumper wire arcoss the a&b ports and then i turn the key on and hold both pedals to the floor. I tryed it twice and the codes are still in there. I have the batterys unhooked now to see if that will reset the codes. I dont know if that works for a diesel but thats what i use to do for my S-10.
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Are you still getting codes ?
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Yep the same ones. The odd thing is when i use a jumper wire i should get like 12 flashes or something like that to enter the test mode but it just starts spitting out codes. I tried the brake and gass peddal thing that didnt work and i unhooked my batterys for a while that didnt reset them. I did notice the truck is useing alot more fule and the motor is louder. The noise reminds me of like a cold start or like valve lash with a gas motor. I dont understand why the new computer is acting so much differnt then the last one. I m just about ready to get rid of the truck. The check engine light stays on all the time. I will be home in 15 to 20 minutes where i can piss with it more. Any ideals let me know what to do next.
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i just think did they get you right computer for that truck it sound like bad one now did you change the computer or just the chip
When get home clear all the codes again and read off to us again |
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