Check Power Supply And Ground Circuit And Communication Circuit

1. Disconnect the MFD connector.
2. Measure the voltage between MFD connector and chassis ground.

Connector & terminal 

(i122) No. 1 (+) - Chassis ground (-):

Is the voltage 10 V or more?

• Yes: Go to 2  .
• No: Check the harness for open or short between the fuse and MFD.

Measure the resistance between MFD connector and chassis ground.

Connector & terminal 

(i122) No. 2 - 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. 9 - (i10) No. 28:

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: Replace the meter - main assembly. Ref. to INSTRUMENTATION/DRIVER INFO>Combination Meter .
• No: Replace the MFD.