CLOCK SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Clock System (except TMMK Made)
Symptom Suspected Area See page
Clock does not operate at all Fuse (ECU-ACC, DOME) -
Wire harness or connector -
Clock assembly

Click here

Clock display illumination malfunction Wire harness or connector -
Main body ECU (Multiplex network body ECU)

Click here

Clock assembly

Click here

Clock loses or gains time Clock assembly

Click here

Clock cannot be adjusted Clock assembly

Click here

Clock System (for TMMK Made without Navigation System)
Symptom Suspected Area See page
Clock does not operate at all Fuse (ECU-ACC, RADIO-B, ECU-IG1 NO. 2) -
Wire harness or connector -
Radio and display receiver assembly

Click here

Clock display illumination malfunction Wire harness or connector -
Combination meter assembly

Click here

Radio and display receiver assembly

Click here

Clock display illumination does not dim at night Fuse (PANEL) -
Wire harness or connector -
Taillight relay circuit

Click here

Radio and display receiver assembly

Click here

Clock loses or gains time Radio and display receiver assembly

Click here

Clock cannot be adjusted Radio and display receiver assembly

Click here

Clock System (for TMMK Made with Navigation System)
Symptom Suspected Area See page
Clock does not operate at all Fuse (ECU-ACC, RADIO-B, ECU-IG1 NO. 2) -
Wire harness or connector -
Navigation receiver assembly

Click here

Clock display illumination malfunction Wire harness or connector -
Combination meter assembly

Click here

Navigation receiver assembly

Click here

Clock display illumination does not dim at night Fuse (PANEL) -
Wire harness or connector -
Taillight relay circuit

Click here

Navigation receiver assembly

Click here

Clock loses or gains time Navigation system

Click here

Navigation antenna assembly

Click here

Navigation receiver assembly

Click here

Clock cannot be adjusted Navigation receiver assembly

Click here