Engine Controls - Tests W/Codes - Except OBD-II
- Introduction
- Self-Diagnostic System
- Summary
- Trouble Code Identification
- Diagnostic Code Charts
- Notes
- Code 12 - Rpm Signal Circuit
- Code 13 - Rpm Signal Circuit
- Code 14 - Ignition Signal Circuit
- Code 16 - ECT Control Signal Malfunction
- Code 21 - Main O2 Sensor CKT (Federal - Front O2 Sensor)
- Code 28 - Main O2 Sensor CKT (Federal - Rear O2 Sensor)
- Code 21 - Main O2 Sensor CKT (GS300 CALIF. - Front O2 Sensor)
- Code 28 - Main O2 Sensor CKT (GS300 CALIF. - Rear O2 Sensor)
- Code 22 - Engine Coolant Temperature Sensor Circuit
- Code 24 - Intake Air Temperature Sensor Circuit
- Code 25 - Air/Fuel Ratio Malfunction (Lean)
- Code 26 - Air/Fuel Ratio Malfunction (Rich)
- Code 27 - Sub-Oxygen Sensor Circuit (CALIF.)
- Code 31 - Low Airflow Meter Voltage
- Code 35 - Barometric Pressure Sensor Circuit
- Code 41 - TPS Signal
- Code 47 - Sub-TPS Signal
- Code 42 - Vehicle Speed Sensor (VSS) Signal Circuit
- Code 43 - Starter Signal
- Code 51 - Switch Condition Signal
- Codes 52, 53 & 55 - Knock Sensor Circuit
- Code 71 - EGR System Malfunction
- Code 78 - Fuel Pump Control Circuit