GM GM 94-95 5.7L VIN P Fleetwood Trouble Code Info

GM

94-95 5.7L VIN P
Trouble code Fault location Probable cause
00 *(see below for additional information) No fault found
11 Malfunction indicator lamp (MIL) – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, MIL bulb, supply wire, ECM
12 Start of diagnosis No RPM signal received
13 Heated oxygen sensor (HO2S) Bank 1 – circuit malfunction Wiring open circuit, HO2S, ECM
14 Engine coolant temperature (ECT) sensor – high temperature Wiring short circuit to ground, ECT sensor, ECM
15 Engine coolant temperature (ECT) sensor – low temperature indicated Wiring open circuit, ECT sensor, ECM
16 Ignition system – low resolution pulse Wiring open circuit/short circuit to ground/short circuit to positive, distributor, ECM
18 Injector(s) – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, injectors, ECM
21 Throttle position (TP) sensor – voltage high Wiring open circuit/short circuit to positive, TP sensor, TP sensor interface module, ECM
22 Throttle position (TP) sensor – voltage low Wiring open circuit/short circuit to ground, TP sensor, TP sensor interface module, ECM
23 Intake air temperature (IAT) sensor – low temperature indicated Wiring open circuit, IAT sensor, ECM
24 Vehicle speed sensor (VSS) Wiring open circuit/short circuit to ground, VSS, VSS buffer module, park neutral position circuit, ECM
25 Intake air temperature (IAT) sensor – high temperature indicated Wiring short circuit to ground, IAT sensor, ECM
26 Evaporative emission (EVAP) canister purge valve – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, EVAP canister purge valve, ECM
27 Exhaust gas recirculation (EGR) vacuum control – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, EGR valve, ECM
28 Transmission range (TR) pressure switch Wiring open circuit/short circuit to ground, ECM
29 Secondary air injection (AIR) system Wiring open circuit/short circuit to ground/short circuit to positive, AIR valve relay, ECM
32 Exhaust gas recirculation (EGR) solenoid Wiring open circuit/short circuit to ground, supply wire, EGR valve, ECM, hoses blocked/leaking, exhaust system blocked
33 Manifold absolute pressure (MAP) sensor – voltage high, low vacuum indicated Wiring short circuit to positive, hose blocked/leaking, MAP sensor, ECM
34 Manifold absolute pressure (MAP) sensor – voltage low, high vacuum indicated Wiring open circuit/short circuit to ground, MAP sensor, ECM
36 Ignition system high resolution or extra low resolution pulse – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, distributor, ECM
37 Brake switch stuck ON Wiring open circuit/short circuit to ground/short circuit to positive, brake switch, ECM
38 Brake switch stuck OFF Wiring open circuit/short circuit to ground/short circuit to positive, brake switch, ECM
41 Ignition control module (ICM) – electronic spark timing (EST)/ignition control (IC) circuit malfunction Wiring open circuit, DI control module, ECM
42 Ignition control module (ICM) – electronic spark timing (EST)/ignition control (IC)/bypass circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, brake switch, ECM
43 Knock sensor Wiring open circuit/short circuit to ground/short circuit to positive, KS, insecure PROM, ECM
44 Heated oxygen sensor (HO2S) bank 1 – mixture lean Wiring short circuit to ground, injector(s) blocked, fuel contamination, fuel pressure low, exhaust system leaking, secondary air system, HO2S, ECM
45 Heated oxygen sensor (HO2S) bank 1 – mixture rich Wiring open circuit, fuel pressure high, fuel pressure regulator, injector(s) leaking, EVAP canister purge valve, TP sensor, EGR system, HO2S, MAF sensor, ECM
46 Immobilizer control module – fuel enable signal Incorrect ignition key, wiring open circuit/short circuit to ground/ short circuit to positive, immobilizer control module, ECM
47 Knock sensor (KS) – circuit malfunction Insecure PROM, ECM
48 Mass air flow (MAF) sensor – circuit malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, MAF sensor, ECM
50 System voltage low Wiring open circuit/short circuit to ground, alternator, ECM
51 Engine control module (ECM) – EEPROM Insecure EEPROM, incorrect EEPROM, ECM
53 System voltage high Alternator, ECM
54 Fuel pump circuit – voltage low Wiring open circuit/short circuit to ground, fuel pump relay, engine oil pressure warning lamp switch, fuel pump, ECM
55 Engine control module (ECM), fuel lean monitor Fuel filter/lines blocked, fuel pump
58 Transmission fluid temperature (TFT) sensor – high temperature indicated Wiring short circuit to ground
59 Transmission fluid temperature (TFT) sensor – low temperature indicated Wiring open circuit, TFT sensor, ECM/td>
63 Heated oxygen sensor (H2OS) bank 2 – open circuit Wiring short circuit to ground/short circuit to ground/short circuit to positive, HO2S, ECM
64 Heated oxygen sensor (HO2S) bank 2 – mixture lean Wiring short circuit to ground, injector(s) blocked, fuel contamination, fuel pressure low, exhaust system leaking, secondary air system, ECM
65 Heated oxygen sensor (HO2S) bank 2 – mixture rich Fuel pressure high, injector(s) leaking, EVAP canister purge valve, TP sensor, EGR system, HO2S contamination, MAF sensor, ECM
66 A/C refrigerant pressure sensor circuit – open or short circuit Wiring open circuit/short circuit to ground/short circuit positive, A/C refrigerant pressure sensor, ECM
67 A/C refrigerant pressure sensor circuit – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, A/C refrigerant pressure sensor
68 A/C compressor clutch relay – circuit malfunction Wiring short circuit to ground/short circuit to positive, A/C compressor clutch relay
69 A/C compressor clutch – circuit malfunction Wiring open circuit, A/C compressor clutch relay, ECM
70 A/C compressor clutch relay – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, A/C compressor clutch relay, ECM
72 Vehicle speed sensor (VSS) – circuit malfunction Wiring open circuit, VSS, ECM
73 Pressure control solenoid – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, ECM
74 Traction control system (TCS), circuit malfunction Wiring short circuit to ground, ABS control module trouble code(s) stored, ECM
75 Transmission system – voltage low Supply wire, alternator, ECM
77 Engine coolant blower motor relay 1 – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, engine coolant blower motor relay, ECM
78 Engine coolant blower motor relay 2 – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, engine coolant blower relay, ECM
79 Transmission fluid – overtemp Wiring open circuit/short circuit to ground, TFT sensor, ECM
81 Transmission shift solenoid (SS), 2nd-3rd – circuit malfunction Wiring open circuit/short circuit to ground, SS, ECM
82 Transmission shift solenoid (SS), 1st-2nd – circuit malfunction Wiring open circuit/short circuit to ground, SS, ECM
83 Torque converter clutch (TCC) solenoid, pulse width modulated – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, TCC solenoid, ECM
84 Transmission shift solenoid (SS), 3rd-2nd – circuit malfunction Wiring open circuit/short circuit to ground, SS, ECM
85 Torque converter clutch (TCC) – stuck ON Wiring open circuit/short circuit to ground, transmission mechanical fault, TCC solenoid
90 Transmission TCC solenoid – circuit malfunction Wiring open circuit/short circuit to ground, TCC solenoid, ECM
95 Change oil lamp – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, instrument panel, engine oil life lamp bulb, ECM
96 Engine oil level warning lamp – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, instrument panel, engine oil level lamp bulb, oil level sensro, ECM
97 Vehicle speed sensor (VSS) – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, VSS, ECM
* Code 00 is displayed when accessing trouble codes with the A/C control panel.