Trouble Code Definitions
FAULT CODE IDENTIFICATION
| Code | Circuit Affected | Probable Cause |
|---|---|---|
| 13 | Oxygen Sensor | Signal Voltage Does Not Change |
| 14 | Coolant Temp. Sensor | Low Temp. Indicated |
| 15 | Coolant Temp. Sensor | High Temp. Indicated |
| 21 | Throttle Position Sensor | Signal Voltage High |
| 22 | Throttle Position Sensor | Signal Voltage Low |
| 23 | Intake Air Temp. Sensor | Low Temp. Indicated |
| 24 | Vehicle Speed Sensor | No Speedometer |
| 25 | Intake Air Temp. Sensor | High Temp. Indicated |
| 31 | MAP Sensor | Low Voltage Input, Low Vacuum |
| 32 | MAP Sensor | High Voltage Input,High Vacuum |
| 41 | Ignition Signal | No Signal |
| 42 | Crank Angle Sensor | No Signal For 3 Seconds |
| 51 | EGR System | EGR VSV Inoperative |