Diagnostic Procedure

DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	Verify that the advanced keyless entry system is operating. Is the advanced keyless entry system operating normally?	Yes	Go to the next step.
1		No	Go to applicable malfunction diagnostic procedure. (See SYMPTOM TROUBLESHOOTING CHART [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
2	Does the system switch to ACC and ignition to ON (IG1)?	Yes	Go to the next step.
2	Does the system switch to ACC and ignition to ON (IG1)?	No	Go to NO. 3 PUSH BUTTON START SYSTEM DOES NOT OPERATE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .
3	Verify the keyless control module DTCs using the M-MDS. Can DTCs be verified?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .) If the FAIL is displayed on the M-MDS, inspect for open circuit between connector terminal 2K, 2L on the keyless control module vehicle wiring harness and DLC-2.
3		No	Go to the next step.
4	Switch the ignition to off. Disconnect the keyless control system connector. Verify the continuity between connector terminal 1D on the keyless control module vehicle wiring harness side and ground. Can continuity be verified?	Yes	Go to the next step.
4		No	After repairing or replacing for an open circuit in the wiring harness, go to Step 17.
5	Does the engine stop normally?	Yes	Go to the next step.
5	Does the engine stop normally?	No	Go to Step 8.
6	Lock the doors using the advanced keyless entry mechanism. Does the steering lock mechanism lock?	Yes	Go to the next step.
6		No	Go to Step 11.
7	Switch the ignition to off. Change the door condition (Open→Close, Close→Open) Does the steering lock mechanism lock?	Yes	After repairing or replacing for intermittent connection malfunctions of the following part connectors and malfunction areas, go to Step 17. Keyless control module BCM Electronic steering lock unit
7		No	Go to Step 16.
8	Monitor the instrument cluster PID SPDMTR using the M-MDS data monitor function. Is the monitor value when the vehicle is stopped 0 km/h?	Yes	Go to Step 10.
8		No	Go to the next step.
9	Monitor the following PIDs concerning the ABS (ABS equipped vehicles) and DSC (DSC equipped vehicle) CM using the M-MDS data monitor function. LF_WSPD LR_WSPD RF_WSPD RR_WSPD Does the monitor value agree with the vehicle driving conditions?	Yes	Go to the instrument cluster symptom troubleshooting "Speedometer indication malfunction".
9		No	Inspect the ABS wheel-speed sensor. (See FRONT ABS WHEEL-SPEED SENSOR INSPECTION .) (See REAR ABS WHEEL-SPEED SENSOR INSPECTION .) After inspection and repair, go to Step 17.
10	Verify the keyless control module PID LOCK_SW_D (door lock signal) using the M-MDS data monitor function. Is the monitor value linked to the door lock condition?	Yes	Replace the steering lock unit, then go to Step 17. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [WITHOUT ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .) (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [WITH ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
10		No	Go to the next step.
11	Switch the ignition to off. Disconnect the keyless control module, BCM, and door lock link switch connectors. Verify the continuity between the following connector terminals on the vehicle wiring harness side: Between keyless control module terminal 4U and door lock link switch terminal D. Between BCM terminal 61 and door lock link switch terminal D Is there continuity?	Yes	Go to the next step.
11		No	After repairing or replacing for an open circuit in the wiring harness, go to Step 17.
12	Leave the keyless control module, BCM, door lock link switch connectors disconnected. Verify the continuity between connector terminal 4U of the keyless control module on the vehicle wiring harness side and ground. Is there continuity?	Yes	After repairing or replacing for a short to the wiring harness ground, go to Step 17. Between keyless control module terminal 4U and door lock link switch terminal D. Between BCM terminal 8G and door lock link switch terminal D
12		No	Go to the next step.
13	Leave the keyless control module, BCM, door lock link switch connectors disconnected. Measure the voltage of connector terminal 4U on the keyless control module vehicle wiring harness side. Is the voltage 1.0 V or more?	Yes	After repairing or replacing for a short to the power supply wiring harness, go to Step 17. Between keyless control module terminal 4U and door lock link switch terminal D. Between BCM terminal 61 and door lock link switch terminal D
13		No	Go to the next step.
14	Leave the door lock link switch connector disconnected. Verify the continuity between connector terminal J on the door lock link switch vehicle wiring harness side and ground. Is there continuity?	Yes	Go to the next step.
14		No	Inspect the following and repair or replace the malfunctioning location. Wiring harness between connector terminal J of the door lock link switch vehicle wiring harness side (open circuit). Ground point (looseness, bad contact) After repair procedure, go to Step 17.
15	Inspect the door lock-link switch. (See DOOR LOCK SWITCH INSPECTION .) Is the door lock-link switch normal?	Yes	Go to the next step.
15		No	Replace the door lock-link switch. After replacement, go to Step 17.
16	Leave the keyless control module and BCM connectors disconnected. Measure the voltage of connector terminal 3X on the keyless control module vehicle wiring harness side. Is the voltage 1.0 V or more?	Yes	After repairing or replacing for a short to the power supply wiring harness, go to Step 15.
16		No	Replace the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION .)
17	Is the electronic steering lock operating normally?	Yes	Troubleshooting completed. Explain the contents of the servicing to the customer.
17	Is the electronic steering lock operating normally?	No	If the malfunction has not been resolved, repeat the inspection from Step 1.