DTC P081D:62 [Advanced Keyless Entry And Push Button Start System]

DESCRIPTION	Mis-match signal between CAN and neutral switch
DETECTION CONDITION	Neutral switch signal is detected as continuously ON in spite of vehicle speed increasing from 0 km/h {0 mph} to 10 km/h {6.2 mph}. CAN and neutral switch signals do not correspond when the ignition switch is ON.
POSSIBLE CAUSE	Multiplex communication system DTC is stored Neutral switch connector or terminals malfunction Open circuit in the wiring harness between the following terminals: Neutral switch terminal B-Body ground Neutral switch malfunction Keyless control module connector or terminals malfunction Short to ground in the wiring harness between the following terminals: Neutral switch terminal A-Keyless control module terminal 4X Short to power supply in the wiring harness between the following terminals: Neutral switch terminal A-Keyless control module terminal 4X Open circuit in the wiring harness between the following terminals: Neutral switch terminal A-Keyless control module terminal 4X Keyless control module malfunction

DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	VERIFY RELATED STORED DTC Perform the advanced keyless entry and push button start system DTC inspection using the M-MDS. (See DTC INSPECTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] ). Is the DTC U0001:88, U0100:00 or U0121.-00 also present?	Yes	Go to the applicable DTC inspection. (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM] ).
1		No	Go to the next step.
2	INSPECT NEUTRAL SWITCH CONNECTOR Switch the ignition to off. Disconnect the negative battery cable. Disconnect the neutral switch connector. Inspect the connector and terminals (corrosion, damage, pin disconnection). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 9.
2		No	Go to the next step.
3	INSPECT NEUTRAL SWITCH GROUND CIRCUIT FOR OPEN CIRCUIT Neutral switch connector is disconnected. Inspect for continuity between the following terminal (wiring harness-side) and body ground: Neutral switch terminal B Is there continuity?	Yes	Go to the next step.
3		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 9.
4	INSPECT NEUTRAL SWITCH Inspect the neutral switch. (See NEUTRAL SWITCH INSPECTION [LF, L5] ). (See NEUTRAL SWITCH INSPECTION [L3 WITH TC] ). Is there any malfunction?	Yes	Replace the neutral switch, then go to Step 9. (See NEUTRAL SWITCH REMOVAL/INSTALLATION [G35M-R] ). (See NEUTRAL SWITCH REMOVAL/INSTALLATION [G66M-R] ). (See NEUTRAL SWITCH REMOVAL/INSTALLATION [A26M-R] ).
4		No	Go to the next step.
5	INSPECT KEYLESS CONTROL MODULE CONNECTOR Disconnect the keyless control module connector. Inspect the connector and terminals (corrosion, damage, pin disconnection). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 9.
5		No	Go to the next step.
6	INSPECT NEUTRAL SWITCH POWER SUPPLY CIRCUIT FOR SHORT TO GROUND Neutral switch and keyless control module connectors are disconnected. Inspect for continuity between the following terminal (wiring harness-side) and body ground: Neutral switch terminal A Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground, then go to Step 9.
6		No	Go to the next step.
7	INSPECT NEUTRAL SWITCH POWER SUPPLY CIRCUIT FOR SHORT TO POWER SUPPLY Neutral switch and keyless control module connectors are disconnected. Reconnect the negative battery cable. Switch the ignition to ON. Measure the voltage at the following terminal (wiring harness-side): Neutral switch terminal A Is there any voltage?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to Step 9.
7		No	Go to the next step.
8	INSPECT NEUTRAL SWITCH POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT Neutral switch and keyless control module connectors are disconnected. Switch the ignition to off. Disconnect the negative battery cable. Inspect for continuity between the following terminals (wiring harness-side): Neutral switch terminal A-Keyless control module terminal 4X 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 COMPLETED Make sure to reconnect the disconnected connectors. Reconnect the negative battery cable. Clear the DTC from the keyless control module using the M-MDS. (See CLEARING DTC [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] ). Switch the ignition to off, then to ON. Perform the advanced keyless entry and push button start system DTC inspection using the M-MDS. (See DTC INSPECTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] ). Is the DTC P081 D:62 present?	Yes	Replace the keyless control module, then go to the next step. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION ).
9		No	Go to the next step.
10	VERIFY THAT NO OTHER DTCs ARE PRESENT Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] ).
10		No	DTC troubleshooting completed.