Check Clock System Communication Circuit

1. Disconnect the MFD connector.
2. Turn the ignition switch to ON.
3. Measure the voltage between MFD connector and chassis ground.

   Connector and terminal. 

   (i122) No. 2 (+) - Chassis ground (-):

Is the voltage 10 V or more?

Yes: Go to  2.

No: Repair or replace the harness.

Measure the resistance between MFD connector and chassis ground.

Connector and terminal. 

(i122) No. 3 - Chassis ground:

Is the resistance less than 10 Ω?

Yes: Go to  3.

No: Repair or replace the harness.

1. Remove the MFD.
2. Attach the clock to another vehicle on which the clock display operates normally, and check its operation.

Is MFD normal?

Yes: Repair the poor contact of connector.

No: Replace MFD.