GM GM 92-93 Cutlass Cierra/Cruiser Trouble Code Info

GM

1993 2.2L VIN 4 & 1992-1993 3.3L VIN N
Flash code Fault location Probable cause
12 Start of diagnosis No engine speed (RPM) signal received
13 Oxygen sensor (02S) Wiring open circuit, 02S, ECM
14 Engine coolant temperature (ECT) sensor – high temperature indicated Wiring short circuit to ground, ECT sensor, ECM
14 (Cutlass Ciera 2.2L) Engine coolant temperature (ECT) sensor – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, ECT sensor, ECM
15 Engine coolant temperature (ECT) sensor – low temperature indicated Wiring open circuit, ECT sensor, ECM
16 Battery voltage – low Wiring, alternator
21 Throttle position (TP) sensor – voltage high Wiring open circuit/short circuit to positive, TP sensor, ECM
21 (Cutlass Ciera 2.2L) Throttle position (TP) sensor – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, TP sensor, ECM
22 Throttle position (TP) sensor -voltage low Wiring open circuit/short circuit to ground, TP sensor, ECM
23 Intake air temperature (IAT) sensor – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, IAT sensor, ECM
24 Vehicle speed sensor (VSS) Wiring open circuit/short circuit to ground, VSS, ECM
26 Engine control module (ECM), quad driver/ output driver -circuit malfunction Wiring, ECM controlled components, ECM
27 Transmission gear switch, signal circuit 2nd gear Wiring open circuit/short circuit to ground, 2nd gear switch, ECM
28 Transmission gear switch signal circuit 3rd gear Wiring open circuit/short circuit to ground, 3rd gear switch, ECM
29 Transmission gear switch signal circuit 4th gear Wiring open circuit/short circuit to ground, 4th gear switch, ECM
31 Park/neutral position (PNP) switch – malfunction Wiring short to ground, incorrectly adjusted, PNP switch, ECM
32 Exhaust gas recirculation (EGR) solenoid Wiring open circuit/short circuit to ground, supply wire, PNP switch, EGR valve, ECM
33 Manifold absolute pressure (MAP) sensor – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, hose blocked/leaking, MAP sensor, ECM
34 Mass airflow (MAF) sensor – circuit malfunction Wiring open circuit/short circuit to ground, MAF sensor, ECM
38 Brake pedal position (BPP) switch Wiring open circuit/short circuit to ground/short circuit to positive, incorrectly adjusted, BPP switch, ECM
39 Torque converter clutch (TCC) – circuit malfunction Wiring open circuit, TCC solenoid, 2nd gear switch, ECM
42 Ignition control module (ICM) Wiring open circuit/short circuit to ground, ICM, ECM
43 Knock sensor (KS) Wiring open circuit/short circuit to ground/short circuit to positive, KS incorrectly fitted, KS, insecure PROM, ECM
44 Oxygen sensor (02S) – mixture lean Wiring open circuit/short circuit to ground, injector(s) blocked, fuel contamination, fuel pressure low, exhaust system leaking, 02S, ECM
45 Oxygen sensor (02S) – mixture rich Wiring open circuit, fuel pressure high, injector(s) leaking, 02S, 02S contamination, EVAP canister purge valve, TP sensor, EGR system, ECM
46 Power steering pressure (PSP) switch – circuit malfunction Wiring open circuit/short circuit to ground, PSP switch, ECM
48 Misfire detected Ignition system, fuel system, O2S
51 Engine control module (ECM), PROM Insecure PROM, incorrect PROM, ECM
66 A/C refrigerant pressure sensor – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, A/C refrigerant pressure sensor, ECM