Tow Mode Switch

TOW MODE SWITCH
Description
When tow mode switch is "ON", tow mode switch signals are sent to TCM from combination meter by CAN communication line. Then it's a tow mode condition.

Diagnostic Procedure
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis.
Is any malfunction in the CAN communication indicated in the results?
YES >>Check CAN communication line.
NG >>GO TO 2.

2. CHECK POWER SOURCE
1. Turn ignition switch "ON". (Do not start engine.)








2. Check the voltage between tow mode switch connector terminal 1 and ground.
OK or NG
OK >>INSPECTION END
NG >>GO TO 3.

3. CHECK TOW MODE SWITCH
1. Turn ignition switch "OFF".
2. Disconnect tow mode switch connector.








3. Check continuity between tow mode switch connector M254 terminals 1 and 2.
OK or NG
OK >>GO TO 4.
NG >>Repair or replace tow mode switch.

4. DETECT MALFUNCTIONING ITEM
Check the following items. If any items are damaged, repair or replace damaged parts.
^ Harness for short or open between combination meter connector terminal 35 and tow mode switch connector terminal 1.
^ Harness for short or open between tow mode switch connector terminal 2 and ground.
OK or NG
OK >>GO TO 5.
NG >>Repair or replace damaged parts.

5. CHECK COMBINATION METER
Check the combination meter. refer to "How to Proceed With Trouble Diagnosis" Testing and Inspection
OK or NG
OK >>INSPECTION END
NG >>Repair or replace damaged parts.