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Honda Fit/Jazz - DTC Troubleshooting: P0325 (23-1) (5MT)

Online Honda Fit/Jazz 2002-2005 Workshop repair manual used by professionals.

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Snip from the Manual

DTC Troubleshooting: P0325 (23-1)

DTC P0325 (23-1): Malfunction in Knock Sensor Circuit

1.Reset the ECM/PCM.

2.Start the engine. Hold the engine at 3,000 rpm (min-1) 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 (min-1) for at least 60 seconds.

Is DTC P0325 indicated?

YES - Go to 4.

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

4.Turn the ignition switch OFF.

5.Disconnect the negative cable from the battery.

6.Disconnect the knock sensor 1P connector.

7.Disconnect the ECM/PCM connector A (31P).

8.Check for continuity between ECM/PCM connector terminal A9 and body ground.


Is there continuity?

YES - Repair short in the wire between the ECM/ PCM (A9) and the knock sensor.n

NO - Go to 9.

9.Connect the knock sensor 1P connector terminal No. 1 to body ground with a jumper wire.


10.Check for continuity between body ground and ECM/ PCM connector terminal A9.


Is there continuity?

YES - Go to 11.

NO - Repair open in the wire between the ECM/ PCM (A9) and the knock sensor.n

11.Substitute a known-good knock sensor and recheck.

Is DTC P0325 indicated?

YES - Substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original ECM/PCM.n

NO - Replace the original knock sensor.n

battery. 6.

Honda Fit/Jazz 02-05 Workshop Manual    Back to all Manuals