QX56 V8-5.6L (VK56DE) (2004)
Control Unit Circuit Test
System Description: When the switch is ON, the control unit lights up the lamp.
How to Follow/Perform Trouble Diagnosis
How to Follow Trouble Diagnosis
NOTE: Trouble diagnosis indicates work procedures required to diagnose problems effectively. Observe the following instructions before diagnosing.
1. Before performing trouble diagnosis, read the "Preliminary Check", the "Symptom Chart" or "Work Flow".
2. After repairs, re-check that the problem has been completely eliminated.
3. Refer to Component Parts and Harness Connector Location for the Systems described in each section for identification/location of components and
harness connectors.
4. Refer to the Circuit Diagram for quick pinpoint check.
If you need to check circuit continuity between harness connectors in more detail, such as when a sub-harness is used, refer to Wiring Diagram in
each individual section and Harness Layout for identification of harness connectors.