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 & 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 & terminal 

(i122) No. 3 - Chassis ground:

Is the resistance less than 10 Ω?

Yes

Go to  3.

No

Repair or replace the harness.

1. Disconnect the connector of combination meter assembly.
2. Check the harness between MFD and combination meter assembly.

Connector & terminal 

(i122) No. 8 - (i10) No. 11:

Is harness normal?

Yes

Go to  4.

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.