DTC P0327 [L3 R.H.D.]


DTC P0327	Knock sensor (KS) circuit low 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 below 0.2 V, the PCM determines that the KS circuit has a malfunction. Diagnostic support note • The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. • The 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	• KNOCk SENSOR (KS) malfunction • Connector or terminal malfunction • Open circuit or short to ground in wiring harness between KS connector terminal A and PCM terminal 96 • Open circuit or short to ground in wiring harness between KS connector terminal B and PCM terminal 70 • Short KS two wires


STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		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.
2		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 9.
3		No	Go to the next step.
4	INSPECT KS • Perform KS inspection. (See KNOCK SENSOR (KS) INSPECTION [L3 R.H.D.]) • Is the KS normal?	Yes	Go to the next step.
4		No	Replace the KS, then go to Step 9.
5	INSPECT KS CIRCUITS FOR OPEN CIRCUIT • Disconnect the PCM connector. • Inspect for continuity between the following terminals: - KS female terminal A (wiring harness-side) and PCM terminal 96 (wiring harness-side) - KS female terminal B (wiring harness-side) and PCM terminal 70 (wiring harness-side) • Is there continuity?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness, then go to Step 9.
6	INSPECT KS CIRCUITS FOR SHORT TO GROUND • Inspect for continuity between following terminals: - KS female terminal A (wiring harness-side) and body ground - KS female terminal B (wiring harness-side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness, then go to Step 9.
6		No	Go to the next step.
7	INSPECT FOR SHORT CIRCUITS • Inspect for continuity between KS female terminals A and B (wiring harness-side). • Is there continuity?	Yes	Repair or replace the wiring harness, then go to Step 9.
7		No	Go to the next step.
8	INSPECT PCM CONNECTOR TERMINAL • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for poor connection at terminals 96 and 70 (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair terminal, then go to the next step.
8		No	Go to the next step.
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 [L3].)
9		No	Go to the next step.
10	VERIFY AFTER REPAIR PROCEDURE • Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE [L3 R.H.D.].) • Are any DTCs present?	Yes	Go to the applicable DTC troubleshooting. (See DTC TABLE [L3 R.H.D.].)
10		No	Troubleshooting completed.