Possible Causes
| Possible Causes |
|---|
| (K42) KNOCK SENSOR NO.1 SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE |
| (K42) KNOCK SENSOR NO.1 SIGNAL CIRCUIT OPEN |
| (K942) KNOCK SENSOR NO.1 RETURN CIRCUIT OPEN |
| (K42) KNOCK SENSOR NO.1 SIGNAL CIRCUIT SHORTED TO (K942) KNOCK SENSOR NO.1 RETURN CIRCUIT |
| (K42) KNOCK SENSOR NO.1 SIGNAL CIRCUIT SHORTED TO GROUND |
| KNOCK SENSOR |
| PCM |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .