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DTC P0327 [L8, LF, L3]

id0102a1806700

DTC P0327 | KS circuit low input
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DETECTION CONDITION | • The PCM monitors input signal from the KS when the engine is running. If the input voltage is below 0.06 V the PCM determines that the KS circuit has a malfunction. Diagnostic support note • This is a continuous monitor (CCM). • The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle. • PENDING CODE is available if the PCM detects the above malfunction condition. • FREEZE FRAME DATA is available. • DTC is stored in the PCM memory.
POSSIBLE CAUSE | • KS malfunction • Connector or terminal malfunction • Open circuit or short to ground in wiring harness between KS connector terminal A and PCM terminal 2U • Open circuit or short to ground in wiring harness between KS connector terminal B and PCM terminal 2V • Short KS two wires • 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 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 terminal, then go to Step 9.
No | Go to the next step.
4 | INSPECT KS • Perform KS inspection. (See KNOCK SENSOR (KS) INSPECTION [L8, LF, L3]) • Is KS normal? | Yes | Go to the next step.
No | Replace the KS, then go to the next step.
5 | INSPECT KS CIRCUITS FOR SHORT TO GROUND • Inspect for continuity between the following terminals: - KS terminal A (wiring harness-side) and body ground - KS terminal B (wiring harness-side) and body ground • Is there continuity? | Yes | Repair or replace suspected wiring harness, then go to Step 9.
No | Go to the next step.
6 | INSPECT FOR SHORT CIRCUITS • Inspect for continuity between KS terminals A and B (wiring harness-side). • Is there continuity? | Yes | Repair or replace the wiring harness, then go to Step 9.
No | Go to the next step.
7 | INSPECT PCM CONNECTOR TERMINAL • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for poor connection at terminals 2U and 2V (such as damaged/pulled-out pins, corrosion). • Is there any malfunction? | Yes | Repair terminal, then go to Step 9.
No | Go to the next step.
8 | INSPECT KS CIRCUITS FOR OPEN CIRCUIT • Disconnect the PCM connector. • Inspect for continuity between the following terminals: - KS terminal A (wiring harness-side) and PCM terminal 2U (wiring harness-side) - KS terminal B (wiring harness-side) and PCM terminal 2V (wiring harness-side) • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness, then go to Step 9.
9 | VERIFY TROUBLESHOOTING OF DTC P0327 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the 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.
10 | 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.