FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P0325

Tests 1 - 2:




Tests 3 - 5:





SYMPTOM
P0325 - KNOCK SENSOR CIRCUIT

WHEN MONITORED
With the ignition ON and the engine running.

SET CONDITION
The knock sensor circuit voltage falls below a minimum value at idle or on deceleration. The minimum value is internal to the PCM and is based on engine rpm. The trouble code also sets if the sensor output is above 5.0 volts.

POSSIBLE CAUSES
- Knock sensor signal circuit open
- Knock sensor signal circuit shorted to voltage
- Knock sensor defective
- Knock sensor ground circuit open
- Knock sensor signal circuit shorted to ground