Trouble Code Definitions
NOTE:
Trouble codes will be recorded at various operating times. Some codes require sensor or switch operation for 5 seconds and others may require longer under certain conditions. Some codes may not set in a service bay operational mode.
TROUBLE 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 | Camshaft Position Sensor | No Signal For 2 Seconds | ||
| 46 (1) | Idle Speed Control Motor | ISC Motor Inoperative | ||
| 51 | EGR System | EGR SV Valve Inoperative | ||
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