Diagnostic Procedure

Perform the self-diagnosis. Refer to SELF-DIAGNOSTIC RESULT MODE .

Is any malfunction in the CAN communication indicated in the results?

1. YES: Check CAN communication line. Refer to DTC U1000 CAN COMMUNICATION LINE .
2. NO: GO TO 2.

1. Turn ignition switch "ON". (Do not start engine.)
2. Check the voltage between tow mode switch connector terminal 1 and ground.

Fig 1: Voltage Reference Table

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OK or NG

1. OK: INSPECTION END 
2. NG: GO TO 3.

1. Turn ignition switch "OFF".
2. Disconnect tow mode switch connector.
3. Check continuity between tow mode switch connector M254 terminals 1 and 2.

Fig 3: Continuity Reference Table

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Fig 4: Checking Continuity Between Tow Mode Switch Connector M254 Terminals 1 And 2

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OK or NG

1. OK: GO TO 4.
2. NG: Repair or replace tow mode switch.

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

1. OK: GO TO 5.
2. NG: Repair or replace damaged parts.

Check the combination meter. Refer to HOW TO PROCEED WITH TROUBLE DIAGNOSIS .

OK or NG

1. OK: INSPECTION END 
2. NO: Repair or replace damaged parts.