20. Checking the Component and Wiring

Checking The Component And Wiring







Check the leak diagnostic unit connectors. Check for contact resistance and oxidation.

Check the pump motor's resistance between the leakage diagnostic unit's connector #1 and #4 (against the leakage diagnostics pump).

Check the hose between the leak diagnostic unit and the EVAP canister. Check for blockages.

Try a new leak diagnostic unit if no fault is found during the above fault-tracing.

Remedy as necessary.

Other Information
- Connecting the breakout box
- Signal specification, engine control module (ECM)
- Component specifications
- Leak diagnostic pump, replacing
- Checking wiring and terminals

Continue: Refer to 22. Verification. 22. Verification