PCM LOCATION
On Alero, Grand Am and Malibu, PCM is located under left side of instrument panel, near steering column. On all other models, PCM is located in engine compartment. (Scheme 35)- (Scheme 37).
Home/Oldsmobile/Alero/Oldsmobile Alero I (1999-2004)/Repair manual/Testing & Diagnostics/Engine Controls Self-Diagnostics - 3.1L & 3.4L: Component L…
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls Self-Diagnostics - 2.2L & 2.4L: Overview
- Engine Controls Self-Diagnostics - 2.2L & 2.4L: Diagnosis
- Engine Controls Self-Diagnostics - 2.2L & 2.4L: Component Locations
- Engine Controls Self-Diagnostics - 2.2L & 2.4L: Other
- DTC P0105: MAP/TP SENSOR PERFORMANCE/RANGE (GASOLINE)
- DTC P0107: MAP SENSOR CIRCUIT - LOW VOLTAGE (GASOLINE)
- DTC P0108: MAP SENSOR CIRCUIT - HIGH VOLTAGE (GASOLINE)
- DTC P0112: IAT SENSOR CIRCUIT - LOW VOLTAGE (2.2L - GASOLINE)
- DTC P0112: IAT SENSOR CIRCUIT - LOW VOLTAGE (2.4L)
- DTC P0113: IAT SENSOR CIRCUIT - HIGH VOLTAGE (2.2L - GASOLINE)
- DTC P0117: ECT SENSOR CIRCUIT - LOW VOLTAGE (GASOLINE)
- DTC P0118: ECT SENSOR CIRCUIT - HIGH VOLTAGE (GASOLINE)
- DTC P0122: TP SENSOR CIRCUIT - LOW VOLTAGE (GASOLINE)
- DTC P0123: TP SENSOR CIRCUIT - HIGH VOLTAGE (GASOLINE)
- DTC P0125: ECT EXCESSIVE TIME TO ENTER CLOSED LOOP FUEL CONTROL (GASOLINE)
- DTC P0128: ECT LESS THAN THERMOSTAT REGULATING TEMPERATURE
- DTC P0130: O2S1 CIRCUIT CLOSED-LOOP PERFORMANCE
- DTC P0131: O2S1 CIRCUIT - LOW VOLTAGE (GASOLINE)
- DTC P0132: O2S1 CIRCUIT - HIGH VOLTAGE (GASOLINE)
- DTC P0133: O2S1 CIRCUIT - SLOW RESPONSE (2.2L - GASOLINE)
- DTC P0133: O2S1 CIRCUIT - SLOW RESPONSE (2.4L)
- DTC P0134: O2S1 CIRCUIT - INSUFFICIENT ACTIVITY (GASOLINE)
- DTC P0137: HO2S2 CIRCUIT - LOW VOLTAGE
- DTC P0138: HO2S2 CIRCUIT - VOLTAGE HIGH
- DTC P0140: HO2S2 CIRCUIT - INSUFFICIENT ACTIVITY
- DTC P0141: HO2S2 HEATER CIRCUIT
- DTC P0172: FUEL TRIM SYSTEM RICH (GASOLINE)
- DTC P0201-P0204: INJECTOR CONTROL CIRCUIT
- DTC P0300: ENGINE MISFIRE DETECTED (2.2L)
- DTC P0300: ENGINE MISFIRE DETECTED (2.4L)
- DTC P0301-P0304: CYLINDER MISFIRE DETECTED (2.2L)
- DTC P0301-P0304: CYLINDER MISFIRE DETECTED (2.4L)
- DTC P0325: KNOCK SENSOR CIRCUIT (2.2L)
- DTC P0325: KNOCK SENSOR CIRCUIT (2.4L)
- DTC P0336: CRANKSHAFT POSITION (CKP) SENSOR PERFORMANCE (2.2L - GASOLINE)
- DTC P0336: CRANKSHAFT POSITION (CKP) SENSOR PERFORMANCE (2.4L)
- DTC P0340: CAMSHAFT POSITION SENSOR CIRCUIT - LOW INPUT
- DTC P0341: CAMSHAFT POSITION SENSOR CIRCUIT PERFORMANCE
- DTC P0420: TWC SYSTEM - LOW EFFICIENCY (2.2L)
- DTC P0420: TWC SYSTEM - LOW EFFICIENCY (2.4L)
- DTC P0440: EVAP SYSTEM
- DTC P0442: EVAP CONTROL SYSTEM - SMALL LEAK DETECTED
- DTC P0446: EVAP VENT SYSTEM PERFORMANCE
- DTC P0452: FUEL TANK PRESSURE SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0453: FUEL TANK PRESSURE SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0461: FUEL LEVEL SENSOR CIRCUIT PERFORMANCE
- DTC P0462: FUEL LEVEL SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0463: FUEL LEVEL SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0480: COOLING FAN RELAY NO. 1 CIRCUIT ("J" BODY)
- DTC P0480: COOLING FAN RELAY NO. 1 CONTROL CIRCUIT ("N" BODY)
- DTC P0481: COOLING FAN RELAY NO. 2 CONTROL CIRCUIT (2.4L "N" BODY)
- DTC P0502: OUTPUT SPEED SENSOR CIRCUIT - LOW OUTPUT (A/T)
- DTC P0502: VEHICLE SPEED SENSOR CIRCUIT - LOW OUTPUT (M/T)
- DTC P0503: VEHICLE SPEED SENSOR CIRCUIT - DROP IN OUTPUT (A/T)
- DTC P0506: IDLE SPEED LOW
- DTC P0507: IDLE SPEED HIGH
- DTC P0562: SYSTEM VOLTAGE LOW
- DTC P0563: SYSTEM VOLTAGE HIGH
- DTC P0601-P0607, P1600, P1621, P1627, P1680 0R P1683: PCM MEMORY
- DTC P0705: TRANSMISSION RANGE SWITCH CIRCUIT
- DTC P1133: O2S1 INSUFFICIENT SWITCHING
- DTC P1137: REAR HO2S CIRCUIT LOW VOLTAGE DURING POWER ENRICHMENT
- DTC P1138: REAR HO2S CIRCUIT HIGH VOLTAGE DURING DECEL FUEL CUTOFF
- DTC P1171: FUEL SYSTEM LEAN DURING ACCELERATION
- DTC P1336: CKP SYSTEM VARIATION NOT LEARNED
- DTC P1441: EVAP SYSTEM FLOW DURING NON-PURGE
- DTC P1626: THEFT DETERRENT SYSTEM FUEL ENABLE SIGNAL CIRCUIT
- DTC P1630: THEFT DETERRENT SYSTEM LEARN MODE ACTIVE
- DTC P1631: THEFT DETERRENT FUEL ENABLE SIGNAL NOT CORRECT
- DTC P1632: THEFT DETERRENT FUEL DISABLE SIGNAL RECEIVED
- Engine Control System Troubleshooting - No Codes: Diagnosis
- Engine Control System Troubleshooting - No Codes: Other
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Overview
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Diagnosis
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Wiring
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Component Locations
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: NVH
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Other
- DTC P0481: COOLING FAN RELAY NO. 2 CONTROL CIRCUIT
- DTC P1112: IAT SENSOR CIRCUIT INTERMITTENT LOW VOLTAGE
- Engine Control System - System Testing & Engine Component Tests: Overview
- Engine Control System - System Testing & Engine Component Tests: Diagnosis
- Engine Control System - System Testing & Engine Component Tests: Wiring
- Engine Control System - System Testing & Engine Component Tests: Component Locations
- Engine Control System - System Testing & Engine Component Tests: Other
- Engine Control System - Basic Diagnostic Procedures: Overview
- Engine Control System - Basic Diagnostic Procedures: Diagnosis
- Engine Control System - Basic Diagnostic Procedures: Other
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