Operation CHARM: Car repair manuals for everyone.

P1324

DTC P1324: Knock Sensor Power Source Circuit Low Voltage

1. Reset the ECM/PCM.
2. Turn the ignition switch ON (II).

Is DTC P1324 indicated?

YES - Go to step 3.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the knock sensor and at the ECM/PCM.

3. Turn the ignition switch OFF.
4. Disconnect ECM/PCM connector A (31P).




5. Check for continuity between ECM/PCM connector terminals A8 and A20.

Is there continuity?

YES - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck, If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.

NO - Go to step 6.

6. Disconnect the knock sensor 3P connector.




7. Connect knock sensor 3P connector terminals No. 2 and No. 3 with a jumper wire.




8. Check for continuity between ECM/PCM connector terminals A8 and A20.

Is there continuity?

YES - Replace the knock sensor.

NO - Repair open in the wire between the ECM/PCM (A8, A20) and the knock sensor.