DTC P0328 [L3 R.H.D.]

id0102a2806800

DTC P0328

Knock sensor (KS) circuit high input

DETECTION CONDITION

• The PCM monitors the input signal from the KS when the engine is running. If the input voltage at PCM terminals between 70 and 96 is above 4.6 V, the PCM determines that the KS circuit has a malfunction.
Diagnostic support note
• The MIL illuminates if the PCM detects the above malfunction conditions during the first drive cycle.
• The PENDING CODE is available if the PCM detects the above malfunction condition.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.

POSSIBLE CAUSE

• KS malfunction
• Connector or terminal malfunction
• Short to power supply in wiring harness between KS terminal A and PCM terminal 96
• Short to power supply in wiring harness between KS terminal B and PCM terminal 70

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related service repair information availability.
• Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT KS CONNECTOR TERMINAL
• Turn the ignition switch off.
• Disconnect the KS connector.
• Inspect for poor connection at terminals A and B (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
Yes
Repair the terminals, then go to step 7.
No
Go to the next step.
4
INSPECT KS
• Perform KS inspection.
• Is the KS normal?
Yes
Go to the next step.
No
Replace the KS, then go to step 7.
5
INSPECT KNOCK SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn the ignition switch to the ON position (engine off).
• Measure the voltage between KS terminal A (wiring harness-side) and body GND and KS terminal B (wiring harness-side) and body GND?
• Is there any voltage reading?
Yes
Repair or replace wiring harness for short to power supply, then go to step 7.
No
Go to the next step.
6
INSPECT PCM CONNECTOR
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to the next step.
No
Go to the next step.
7
VERIFY TROUBLESHOOTING OF DTC P0328 COMPLETED
• Make sure to connect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
8
VERIFY AFTER REPAIR PROCEDURE
• Perform the "AFTER REPAIR PROCEDURE".
• Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
No
Troubleshooting completed.