1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the following harness connectors.

- ECM
- BCM
- Combination meter

4. Check the continuity between the BCM harness connector and the combination meter harness connector.

   BCM harness connector | Combination meter harness connector | Continuity
   Connector No. | Terminal No. | Connector No. | Terminal No.
   M122 | 91 | M53 | 21 | Existed
   90 | 22 | Existed

Is the inspection result normal?
YES (Present error)>>Connect all the connectors and diagnose again. Refer to Trouble Diagnosis Flow Chart.
YES (Past error)>>Error was detected in the main line between the BCM and the combination meter.
NO>>Repair the main line between the BCM and the combination meter.