DTC P0328 [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513)

BME010200300204

DTC P0328

Knock sensor circuit high input

DETECTION CONDITION

• PCM monitors input signal from knock sensor when engine is running. If input voltage at PCM terminal 57 is excessively high, PCM determines that knock sensor circuit is malfunctioning.
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction conditions during first drive cycle.
• PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.

POSSIBLE CAUSE

• Knock sensor malfunction
• Connector or terminal malfunction
• Open circuit in wiring between knock sensor terminal A and PCM terminal 57

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 FREEZE FRAME DATA on repair order, then go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Check for related Service Information availability.
• Is any related Service Information available?
Yes
Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to the next step.
No
Go to the next step.
3
CHECK KNOCK SIGNAL CIRCUIT FOR OPEN CIRCUIT
• Turn the ignition switch off.
• Disconnect knock connector.
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between KS terminal A (wiring harness-side) and body GND.?
• Is the voltage approx. 5 V?
Yes
Go to Step 5.
No
Go to the next step.
4
CHECK PCM CONNECTOR
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out terminals, corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 6.
No
Repair or replace the wiring harness for open circuit, then go to Step 6.
5
INSPECT KNOCK SENSOR
• Perform knock sensor inspection.
• Is the knock sensor normal?
Yes
Go to the next step.
No
Replace the knock sensor, then go to the next step.
6
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.
7
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is any DTC present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.