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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Control Circuit Testing

CONTROL CIRCUIT TESTING
The starter control circuit components should be tested in the order in which they are listed, as follows:
- Starter Relay - Refer to Starter Relay Diagnosis and Testing.
- Starter Solenoid - Refer to Starter Motor Diagnosis and Testing.
- Ignition Switch - Refer to Ignition Switch and Key Lock Cylinder
- Park/Neutral Position Switch - If equipped with automatic transmission, refer to Park/Neutral Position Switch Transmission.
- Wire harnesses and connections - Refer to Wiring Diagrams.