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DTC P0328 [L8, LF, L3]

id0102a1806800

DTC P0328 | KS circuit high input
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DETECTION CONDITION | • The PCM monitors the input signal from the KS when the engine is running. If the input voltage is above 4.9 V the PCM determines that KS circuit has a malfunction. Diagnostic support note • This is a continuous monitor (CCM). • MIL illuminates if the PCM detects the above malfunction conditions during first drive cycle. • PENDING CODE is available if the PCM detects the above malfunction condition. • FREEZE FRAME DATA is available. • Are any DTCs 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 2U • Short to power supply in wiring harness between KS terminal B and PCM terminal 2V • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record the FREEZE FRAME on the repair order, then go to the next step.
2 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to the available Service 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 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 terminal, then go to Step 7.
No | Go to the next step.
4 | INSPECT KS • Perform KS inspection. (See KNOCK SENSOR (KS) INSPECTION [L8, LF, L3].) • 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 ground and KS terminal B (wiring harness-side) and body ground? • Is the voltage B+? | 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 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. (See PCM REMOVAL/INSTALLATION [L8, LF, L3].)
No | Go to the next step.
8 | VERIFY AFTER REPAIR PROCEDURE • Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE [L8, LF, L3].) • Are any DTC present? | Yes | Go to the applicable DTC troubleshooting. (See DTC TABLE [L8, LF, L3].)
No | Troubleshooting completed.