GM GM 96-02 6.5L VIN Y, F, S, 1 Trouble Code Info

GM

96-02 6.5L VIN 1, Y, F, S
Flash Code Fault Location Probable Cause
P0000-P0999 Refer to OBD-II trouble code table
P1093 Fuel rail pressure (FRP) sensor, command/ actual fuel pressure -signal variation Wiring, poor connections, FRP sensor
P1094 Fuel rail pressure (FRP) sensor -signal out of range Wiring, poor connections,FRP sensor
P1125 Accelerator pedal position (APP) sensor 1/2/ 3 -signal variation Wiring, APP sensor, ECM
P1172 Fuel level sensors, primary and secondary no fuel level change during fuel transfer from secondary to primary tank Wiring, secondary fuel pump, fuel level sensors
P1191 Intake manifold system-air leak Intake hose pipe connections, EGR systeECM
P1214 Fuel injection pump timing-out of range Fuel injection pump timing incorrectly se’ CKP sensor, ECM
P1216 Fuel injection duration shorter than expected-pulse width signal Wiring, fuel injection duration control solenoid, fuel injection pump control module, ECM
P1217 Fuel injection duration longer than expected-pulse width signal Wiring, fuel injection duration control solenoid, fuel injection pump control module, ECM
P1218 Fuel injection pump calibration resistor circuit malfunction Wiring, calibration resistor
P1223 Injector 1 -circuit malfunction Wiring, injector, FICM
P1226 Injector 2-circuit malfunction Wiring, injector, FICM
P1229 Injector 3-circuit malfunction Wiring, injector, FICM
P1232 Injector 4-circuit malfunction Wiring, injector, FICM
P1235 Injector 5 -circuit malfunction Wiring, injector, FICM
P1238 Injector 6-circuit malfunction Wiring, injector, FICM
P1241 Injector 7 -circuit malfunction Wiring, injector, FICM
P1244 Injector 8-circuit malfunction Wiring, injector, FICM
P1261 Injectors 1, 4, 6 & 7-high voltage Wiring, injector(s), ECM
P1262 Injectors 2, 3, 5 & 8-high voltage Wiring, injector(s), ECM
P1270 Engine control module (ECM), APP sensor signal -analogue/digital process malfunction Engine control module (ECM)
P1271 Accelerator pedal position (APP) sensor 1/2 signal variation Wiring, APP sensor, ECM
P1272 Accelerator pedal position (APP) sensor 2/3 signal variation  Wiring, APP sensor, ECM
P1273 Accelerator pedal position (APP) sensor 1/3 signal variation Wiring, APP sensor, ECM
P1277 Accelerator pedal position (APP) sensor 1 voltage low Wiring, APP sensor, ECM
P1278 Accelerator pedal position (APP) sensor 1 voltage high Wiring, APP sensor, ECM
P1282 Accelerator pedal position (APP) sensor 2 voltage low Wiring, APP sensor, ECM
P1283 Accelerator pedal position (APP) sensor 2 voltage high Wiring, APP sensor, ECM
P1287 Accelerator pedal position (APP) sensor 3 -voltage low Wiring, APP sensor, ECM
P1288 Accelerator pedal position (APP) sensor 3 -voltage high Wiring, APP sensor, ECM
P1345 Crankshaft position sensor (CKP)/camshaft position sensor (CMP) -signal variation Wiring, CKP sensor, CMP sensor
P1404 Exhaust gas recirculation (EGR) vacuum sensor/barometric pressure (BARD) sensor -voltage low Wiring, EGR vacuum sensor/BARD sensor, ECM
P1406 Exhaust gas recirculation (EGR) valve position sensor -range performance Wiring, EGR valve tight/sticking, EGR valve position sensor
P1409 Exhaust gas recirculation (EGR) system -malfunction Wiring, vacuum pipes, EGR vacuum sensor, EGR valve
P1431 Fuel level sensor, secondary -circuit malfunction Wiring, fuel level sensor
P1432 Fuel level sensor -low voltage Wiring open circuit, fuel level sensor
P1433 Fuel level sensor -high voltage Wiring short circuit to positive, fuel level sensor
P1550 System voltage -low Wiring, battery, alternator
P1600 Engine control module (ECM) -malfunction ECM
P1621 Engine control module (ECM) -memory performance ECM
P1626 Engine control module (ECM) -fuel enable signal lost Wiring, poor connections, immobilizer control module, ECM
P1627 Engine control module (ECM) -analogue/ digital performance Engine control module (ECM)
P1630 Engine control module (ECM), immobilizer code -learning mode ECM immobilizer code programming not completed
P1631 Engine control module (ECM) -incorrect immobilizer code Incorrect key, immobilizer code not programmed
P1635 Engine control module (ECM), sensor supply voltage -circuit malfunction Wiring short to ground, poor connections, CKP sensor, EGR control/BARD sensor, injection pump position/fuel temperature sensor, TC boost pressure sensor, ECM
P1637 Alternator warning lamp, control signal -circuit malfunction Wiring, instrument panel, ECM
P1639 Engine control module (ECM), sensor supply voltage -circuit malfunction Wiring, poor connections, APP sensor, TC boost pressure sensor, BARD sensor, ECM
P1641 Malfunction indicator lamp (MIL) -circuit malfunction Wiring, fuses, MIL
P1643 Glow plug warning lamp -circuit malfunction Wiring, glow plug warning lamp, ECM
P1653 Exhaust gas recirculation (EGR) vent valve -circuit malfunction Wiring, poor connections, EGR vent valve, ECM
P1654 Service throttle soon warning lamp -circuit malfunction Wiring, fuses, service throttle soon warning lamp
P1655 Exhaust gas recirculation (EGR) control valve -circuit malfunction Wiring, poor connections, EGR control valve, ECM
P1656 Turbocharger (TC) wastegate regulating valve -circuit malfunction Wiring, TC wastegate regulating valve, ECIt
P1658 Fuel injector control module (FICM) -malfunction FICM
P1680 Engine control module (ECM) -malfunction ECM
P1681 Engine control module (ECM) -malfunction ECM
P1683 Engine control module (ECM) -malfunction ECM
P1781 Transmission control module (TCM), malfunction indicator lamp (MIL) request signal -voltage high/low Wiring TCM, ECM
P1810 Transmission gear pressure switch, signal -circuit malfunction Wiring open circuit/short circuit to grounc reverse/D1/D2/D3/D4 gear pressure switch(es), ECM
P1811 Shift time too long -adaptation limit reached Fluid level low, transmission mechanical fault
P1860 Torque converter clutch (TCC) solenoid, pulse width modulation (PWM) -circuit malfunction Wiring open circuit/short circuit to grounc TCC solenoid, ECM
P1870 Torque converter clutch (TCC) -slip speed excessive Transmission fluid level, wiring, TCC solenoid, ECM
P2141 Exhaust gas recirculation (EGR) control valve -voltage low Wiring, poor connections, EGR vent valva. ECM
P2142 Exhaust gas recirculation (EGR) control valve -voltage high Wiring, poor connections, EGR vent valve ECM
P2144 Exhaust gas recirculation (EGR) vent valve -voltage low Wiring, poor connections, EGR vent valve, ECM
P2145 Exhaust gas recirculation (EGR) vent valve -voltage high Wiring, poor connections, EGR vent valve, ECM
U1026 Transmission control module (TCM)/four wheel drive control module, CAN data bus -communication malfunction Wiring, BCM
U1192 Engine control module (ECM)/immobilizer control module, CAN data bus -signal malfunction Wiring, immobilizer control module, ECM
U1800 Engine control module (ECM)/fuel injector control module (FICM), CAN data bus -communication malfunction Wiring, FICM, ECM
U2104 Engine control module (ECM)/transmission control module (TCM)/Fuel injector control module (FICM), CAN data bus -communication malfunction Wiring, TCM, FICM, ECM
U2106 Engine control module (ECM)/transmission control module (TCM), CAN data bus -communication malfunction Wiring, TCM, ECM