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