Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Diagnostic Code Charts
- Code 12, 17 & 18 - Rpm Signal Circuits
- Code 13 - Rpm Signal Circuit No. 2
- Code 14 & 15 - Ignition Signal (LS400)
- Code 14 & 15 - Ignition Signal (SC400)
- Code 16 - ECT Control Signal
- Code 21 & 28 - Main Oxygen Sensor Signal
- Code 22 - Water Temperature Sensor Signal
- Code 24 - Intake Air Temperature Sensor Signal
- Code 25 & 26 - Air/Fuel Ratio Lean Or Rich Signal
- Code 27 & 29 - Sub-Main Oxygen Sensor Circuit (LS400)
- Code 27 & 29 - Sub-Main Oxygen Sensor Circuit (SC400)
- Code 31 - Airflow Meter Signal
- Code 35 - High Altitude COMPENSATOR (HAC) Sensor Signal
- Code 41 & 47 - Throttle Position Sensor (TPS) Signal & Sub-Throttle Position Sensor Signal
- Code 42 - Vehicle Speed Sensor (VSS) Circuit (SC400)
- Code 43 - Starter Signal
- Code 51 - Switch Condition Signal (LS400)
- Code 51 - Switch Condition Signal (SC400)
- Code 52, 53 & 55 - Knock Sensor
- Code 71 - EGR System Malfunction (LS400)
- Code 71 - EGR System Malfunction (SC400)
- Code 78 - Fuel Pump Control Circuit (SC400)
- Summary