Diagnostic Aids
Verify a clean, tight connection for the sensor ground. An open circuit at sensor signal terminal or ground terminal will result in a Code 13.
CODE 13 TERMINAL & CIRCUIT WIRING IDENTIFICATION
| Application | PCM Terminal | Wire Color | ||
|---|---|---|---|---|
| "C" & "K" Series | ||||
| 5.7L A/T | ||||
| Oxygen Sensor Signal | A10 | Purple | ||
| Oxygen Sensor Ground | A12 | Tan | ||
| 5.7L M/T | ||||
| Oxygen Sensor Signal | D7 | Purple | ||
| Oxygen Sensor Ground | D6 | Tan | ||
| "G" Series | ||||
| 5.7L A/T | ||||
| Oxygen Sensor Signal | A10 | Purple | ||
| Oxygen Sensor Ground | A12 | Tan | ||
| "P" Series | ||||
| 5.7L A/T | ||||
| Oxygen Sensor Signal | A10 | Purple | ||
| Oxygen Sensor Ground | A12 | Tan | ||
| 5.7L M/T | ||||
| Oxygen Sensor Signal | D7 | Purple | ||
| Oxygen Sensor Ground | D6 | Tan | ||