DTC P0327

DTC P0327	KS circuit low input
DETECTION CONDITION	The PCM monitors input signal from the KS when the engine is running. If the input voltage is below 0.01 V for 5s 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 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 Short to ground in wiring harness between KS terminal A and PCM terminal 2U Short to ground in wiring harness between KS terminal B and PCM terminal 2V PCM connector or terminals malfunction KS signal circuit and ground circuit are shorted to each other Open circuit in wiring harness between KS terminal A and PCM terminal 2U Open circuit in wiring harness between KS terminal B and PCM terminal 2V PCM malfunction

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
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.
1		No	Record the FREEZE FRAME DATA (Mode 12) on the repair order, then go to the next step.
2	VERIFY RELATED SERVICE BULLETINS AVAILABILITY Verify related Service Bulletins availability. Is any related Service Bulletins available?	Yes	Perform the repair or diagnosis according to the available Service Bulletins. If the vehicle is not repaired, go to the next step.
2		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 (such as damage pulled-out pins, and corrosion). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 9.
3		No	Go to the next step.
4	INSPECT KS Inspect the KS. (See KNOCK SENSOR (KS) INSPECTION ). Is there any malfunction?	Yes	Replace the KS, then go to Step 9. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION ).
4		No	Go to the next step.
5	INSPECT KS CIRCUITS FOR SHORT TO GROUND KS connector is disconnected. Inspect for continuity between the following terminals (wiring harness-side) and body ground: KS terminal A KS terminal B Is there continuity?	Yes	If the short to ground circuit could be detected: Repair or replace the wiring harness for a possible short to ground. If the short to ground circuit could not be detected: Replace the PCM (short to ground in PCM internal circuit). (See PCM REMOVAL/INSTALLATION ). Go to Step 9.
5		No	Go to the next step.
6	INSPECT PCM CONNECTOR AND TERMINALS Disconnect the PCM connector. Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 9.
6		No	Go to the next step.
7	INSPECT KS SIGNAL CIRCUIT AND GROUND CIRCUIT FOR SHORT TO EACH OTHER KS and PCM connectors are disconnected. Inspect for continuity between KS terminals A and B (wiring harness-side). Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to each other, then go to Step 9.
7		No	Go to the next step.
8	INSPECT KS CIRCUITS FOR OPEN CIRCUIT KS and PCM connectors are disconnected. Inspect for continuity between the following terminals (wiring harness-side): KS terminal A and PCM terminal 2U KS terminal B and PCM terminal 2V Is there continuity?	Yes	Go to the next step.
8		No	Repair or replace the wiring harness for a possible open circuit, then go to the next step.
9	VERIFY TROUBLESHOOTING OF DTC P0327 COMPLETED Make sure to reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. Perform the KOEO or KOER self test. (See KOEO/KOER SELF TEST ). Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION ).
9		No	Go to the next step.
10	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE ). Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE ).
10		No	DTC troubleshooting completed.