Trouble Code Identification Charts
PRIZM TROUBLE CODE IDENTIFICATION CHART
| Code | System Affected | Probable Cause |
|---|---|---|
| 12 & 13 | No RPM Signal | No Signal For 2 Seconds |
| 14 | Ignition Signal Circuit | No Signal |
| 21 | Oxygen Sensor Circuit | Open Or Short Circuit |
| 22 | Coolant Temperature Sensor Circuit | Open Or Short Circuit |
| 24 | Manifold Air Temperature Sensor Circuit | Low Temp. Indicated |
| 25 | Oxygen Sensor Circuit | Lean Exhaust Indicated |
| 26 | Oxygen Sensor Circuit | Rich Exhaust Indicated |
| 31 | MAP Sensor | Open Or Shorted Circuit |
| 41 | Throttle Switch Circuit | Incorrect Signal Voltage |
| 42 | Vehicle Speed Sensor Circuit | Incorrect Signal Voltage |
| 43 | No Crank Signal | No Signal From Starter |
| 51 | No A/C Signal | No Signal Present |
| 71 | EGR Gas Temperature Sensor Circuit | Out Of Calibrated Range |