Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Component Tests and General Diagnostics




POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT : Diagnosis Procedure


1. CHECK FUSE

Check if the fuse is burned out.





Is the check result normal?
YES- GO TO 2.
NO- Replace the fuse after repairing the applicable circuit.

2. CHECK BATTERY VOLTAGE

Check the voltage between AV control unit harness connector and ground.





Is the check result normal?
YES- INSPECTION END
NO- Repair the harness between the AV control unit and fuse.