P0325
DTC P0325: Knock Sensor Circuit Malfunction1. Reset the PCM.
2. Start the engine. Hold the engine at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on, then let it idle.
3. Hold the engine at 3,000 - 4,000 rpm for at least 60 seconds.
Is DTC P0325 indicated?
YES - Go to step 4.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the knock sensor and at the PCM.
4. Turn the ignition switch OFF.
5. Disconnect the knock sensor sub-harness connector (C161).
6. Disconnect the PCM connector C (31P).
7. Check for continuity between PCM connector terminal C22 and body ground.
Is there continuity?
YES - Repair short in the wire between the PCM (C22) and the knock sensor sub-harness connector (C161).
NO - Go to step 8.
8. Connect knock sensor sub-harness connector (C161) terminal No. 1 to body ground with a jumper wire.
9. Check for continuity between PCM connector terminal C22 and body ground.
Is there continuity?
YES - Go to step 10.
NO - Repair open in the wire between the PCM(C22) and the knock sensor sub-harness connector (C161).
10. Check the knock sensor sub-harness between C161 and the knock sensor for an open or short. If it's OK, substitute a known-good knock sensor and recheck.
Is DTC P0325 indicated?
YES - Substitute a known-good PCM and recheck. If the symptom/indication goes away, replace the original PCM.
NO - Replace the original knock sensor and/or the knock sensor sub-harness.