Check Clock System Communication Circuit

Step	Check	Yes	No
1 CHECK POWER SUPPLY. Disconnect the multi display connector. Measure the voltage between multi display connector and chassis ground. Connector & terminal (i59) No. 8 (+) - Chassis ground (-):	Is the voltage 10 V or more?	Go to step 2.	Repair or replace the harness.
2 CHECK GROUND CIRCUIT. Measure the resistance between multi display connector and chassis ground. Connector & terminal (i59) No. 6 - Chassis ground:	Is the resistance less than 10 Ω?	Go to step 3.	Repair or replace the harness.
3 CHECK HARNESS BETWEEN MULTI DISPLAY AND COMBINATION METER. Disconnect the combination meter connector. Measure the resistance between multi display connector and combination meter connector. Connector & terminal (i59) No. 5 - (i10) No. 3:	Is the resistance less than 10 Ω?	Go to step 4.	Repair or replace the harness.
4 CHECK MULTI DISPLAY. Remove the multi display. Attach the clock to another vehicle on which the clock display operates normally, and check its operation.	Is the multi display normal?	Replace the meter case assembly.	Replace the multi display.