DTC P0328 [L8, LF]

id0102b1806800

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 4.58 V the PCM determines that KS circuit has a malfunction. Diagnostic support note • This is a continuous monitor (CCM). • The MIL illuminates if the PCM detects the above malfunction conditions during the first drive cycle. • FREEZE FRAME DATA (Mode 2/Mode 12) is available. • The DTC is stored in the PCM memory.
POSSIBLE CAUSE | • KS connector or terminals malfunction • KS malfunction • PCM connector or terminals malfunction • Short to power supply in wiring harness between the following terminals: ― KS terminal A and PCM terminal 2U ― KS terminal B and PCM terminal 2V • KS power supply circuit and ground circuit are shorted to each other • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA (MODE 12) HAS BEEN RECORDED • Has the FREEZE FRAME DATA (Mode 12) been recorded? | Yes | Go to the next step.
No | Record the FREEZE FRAME DATA (Mode 12) on the repair order, then go to the next step.
2 | VERIFY RELATED SERVICE 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 AND TERMINALS • Turn the ignition switch off. • Disconnect the KS connector. • Inspect for poor connection at terminals (such as damaged/pulled-out pins, corrosion). • Is there any malfunction? | Yes | Repair or replace the connector or terminals, then go to Step 8.
No | Go to the next step.
4 | INSPECT KS • Inspect the KS. (See KNOCK SENSOR (KS) INSPECTION [L8, LF].) • Is there any malfunction? | Yes | Replace the KS, then go to Step 8. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION [L8, LF].)
No | Go to the next step.
5 | INSPECT PCM CONNECTOR AND TERMINALS • Disconnect the PCM connector. • Inspect for poor connection at terminals (such as damaged/pulled-out pins, corrosion). • Is there any malfunction? | Yes | Repair or replace the connector or terminals, then go to Step 8.
No | Go to the next step.
6 | INSPECT KS CIRCUIT FOR SHORT TO POWER SUPPLY • KS and PCM connectors are disconnected. • Turn the ignition switch to the ON position (engine off). • Measure the voltage between the following terminals (wiring harness-side) and body ground: ― KS terminal A ― KS terminal B • Is there any voltage? | Yes | Repair or replace wiring harness for a possible short to power supply, then go to Step 8.
No | Go to the next step.
7 | INSPECT KS POWER SUPPLY AND GROUND CIRCUIT FOR SHORT TO EACH OTHER • KS and PCM connectors are disconnected. • Turn the ignition switch off. • Inspect for continuity between KS terminals A and B (wiring harness-side). • Is there continuity? | Yes | Repair or replace wiring harness for a possible short to each other, then go to the next step.
No | Go to the next step.
8 | VERIFY DTC TROUBLESHOOTING COMPLETED • Make sure to connect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [L8, LF].) • Start the engine and warm it up completely. • Perform the KOEO/KOER self test. (See KOEO/KOER SELF TEST [L8, LF].) • Is the same DTC present? | Yes | Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [L8, LF].)
No | Go to the next step.
9 | VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [L8, LF].) • Are any DTCs present? | Yes | Go to the applicable DTC troubleshooting. (See DTC TABLE [L8, LF].)
No | DTC troubleshooting completed.