Manual sections
Wiring diagrams- A/c Compressor
- Abbreviations
- Accessory Drive Belts
- Adjustments
- Airbag
- Anti-Lock/traction Control
- Application
- Automatic Trans
- Auxiliary Emission Control Systems
- Axle Shafts
- Basic Trouble Shooting
- Body Electrical
- Brakes
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Communication Devices
- Computer Relearn
- Cooling Fan
- Cruise Control Systems
- Diagnostic Connector Locations
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- DTC Index
- Electrical
- Electrical Component Locations
- Electronic Steering
- Emission Applications
- Engine
- Engine Performance
- Exterior Lights
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Servicing - All Makes
- Headlights
- Heated Glass/defoggers
- Identification
- Ignition Switch/steering Lock
- Interior/illumination Lights
- Manual & Power Steering
- Manual HVAC System
- Manual Trans
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Mirrors
- Mode 6
- Oem General Information
- Pin Voltage Charts
- Removal & Installation
- Reset Procedures
- Restraints
- Rpo Codes
- Seats
- Sensor Range Charts
- Specifications
- Starter
- Steering
- Sun Roof/t-Top/convertible Top
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Theory & Operation
- Traction Control Disable
- Transmission
- Warning System
- Wheel Alignment
- Windows
- Wiper/washer Systems
- Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
Repair manual
Testing & Diagnostics Oldsmobile Alero I
Step-by-step instructions on "Testing & Diagnostics" for Oldsmobile Alero I (1999–2004). Pick an article — removal, installation, adjustment and diagnostics with illustrations.
5subsections
88articles
61illustrations
Engine Controls Self-Diagnostics - 2.2L & 2.4L
70 articles- Engine Controls Self-Diagnostics - 2.2L & 2.4L: Overview
- Engine Controls Self-Diagnostics - 2.2L & 2.4L: Diagnosis 14
- Engine Controls Self-Diagnostics - 2.2L & 2.4L: Component Locations
- Engine Controls Self-Diagnostics - 2.2L & 2.4L: Other 4
- 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
2 articlesEngine Controls Self-Diagnostics - 3.1L & 3.4L
8 articles- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Overview
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Diagnosis 16
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Wiring
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Component Locations 3
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: NVH
- Engine Controls Self-Diagnostics - 3.1L & 3.4L: Other 5
- 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
5 articles- Engine Control System - System Testing & Engine Component Tests: Overview
- Engine Control System - System Testing & Engine Component Tests: Diagnosis 5
- Engine Control System - System Testing & Engine Component Tests: Wiring 5
- Engine Control System - System Testing & Engine Component Tests: Component Locations 7
- Engine Control System - System Testing & Engine Component Tests: Other