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.




Diagnosis Procedure
1.CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Diagnosis System (TCM).
Is any malfunction in the CAN communication indicated in the results?
YES - Check CAN communication line. Trans Control Trans Control Trans Control Trans Control Trans Control.
NO - 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 M67 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 M67 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. Work Flow.
OK or NG
OK - INSPECTION END
NO - Repair or replace damaged parts.