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Honda Fit/Jazz - DTC Troubleshooting: P0325 (23-1) (L15A 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 knock sensor 1P connector.
6.Disconnect the ECM/PCM connector A (31P).
7.Check for continuity between ECM/PCM connector terminal A9 and body ground.
IMAGE REPLACED HERE
Is there continuity?
YES - Repair short in the wire between the ECM/ PCM (A9) and the knock sensor.n
NO - Go to 8.
8.Connect the knock sensor 1P connector terminal No. 1 to body ground with a jumper wire.
IMAGE REPLACED HERE
9.Check for continuity between body ground and ECM/ PCM connector terminal A9.
IMAGE REPLACED HERE
Is there continuity?
YES - Go to 10.
NO - Repair open in the wire between the ECM/ PCM (A9) and the knock sensor.n
10.Substitute a known-good knock sensor and recheck.
Is DTC P0325 indicated?
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.n
NO - Replace the original knock sensor.n
6. Disconnect