Operation CHARM: Car repair manuals for everyone.

System Diagnosis

1. If no instruments operate, do Test A.
Test A

2. If the coolant temperature gauge reads hot with coolant cool, do Test B.
Test B

3. If the coolant temperature gauge reads cool with coolant hot, do Test B.
Test B

4. If the fuel gauge reads empty with fuel in the tank, do Test C.
Test C

5. If the fuel gauge reads full when the tank is empty, do Test C.
Test C

6. If the speedometer does not operate, do Test D.
Test D

7. If the tachometer does not operate, do Test E.
Test E