Signal Missing. Permanent Fault

Signal missing. Permanent fault

Checking the terminal








- Ignition off
- Disconnect the canister purge (CP) valve connector.
Check the canister purge (CP) valve connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.

Found Something Wrong?

Yes - Verification

No - Checking the canister purge (CP) valve

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Checking the canister purge (CP) valve








- Canister purge (CP) valve connector disconnected
- Ignition on.
Connect an ohmmeter between canister purge (CP) valve connector terminals 1 and 2.





Ohmmeter will show around 30 ohms at +20°C.

OK - Checking the power supply

Not OK - Defective canister purge (CP) valve

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Checking the power supply




- Ignition off.
Connect a voltmeter between the canister purge (CP) valve connector terminal 2 (control module side) and ground.





Voltmeter should show battery voltage after the ignition switch is turned on.

OK - Checking the signal cable

Not OK - Checking the power cable

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Checking the signal cable
Check the cable between the EVAP-valve's connection #1 and Engine control module (ECM) connector #4 for open circuit. Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault
Remedy as necessary.









Choose Continue

Continue - Verification

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Defective canister purge (CP) valve
Try a new canister purge (CP) valve according to Replacing the canister purge (CP) valve Service and Repair.

Choose Continue

Continue - Verification

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Checking the power cable
Check the cable between canister purge (CP) valve terminal 2 and system relay base 2/14 terminal 3 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.









Choose Continue

Continue - Verification

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Verification




- Reconnect the connectors, reinstall components etc.
Activate the canister purge (CP) valve according to Description of activations Description Of Activations.





You will hear a clicking sound from the EVAP-valve?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

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Fault-tracing information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the terminal

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