DTC 52

DTC 52 - Knock Sensor Signal

Definition: Signal from knock sensor is not detected.

- INSPECT KNOCK SENSOR AND CIRCUIT.

Editor's Note:
- The knock sensor signal wire is a shielded cable. When testing the knock sensor circuit, check that there is no continuity between the signal wire and the shielding wire. Also check that the shielding wire has continuity to ground and the signal wire has continuity from the sensor to the ECM.