Signal Too High. Permanent Fault

Signal too high. Permanent fault

Check canister purge (CP) valve








- Ignition off
- Disconnect the front canister purge (CP) valve connector.
Connect an ohmmeter between canister purge (CP) valve terminals #1 and #2 (valve side).









The ohmmeter should read approximately 21 ohms at +20°C.

OK - Checking the signal cable

Not OK - Defective canister purge (CP) valve

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Checking the signal cable




- Ignition on.
Check the cable between canister purge (CP) valve connector terminal #1 (control module side) and engine control module (ECM) connector terminal #4. Check for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.













Continue - Verification

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

Continue - Verification

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Verification








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on.
Activate the canister purge (CP) valve according to Description of activations Description Of Activations.





Does the canister purge (CP) valve click?

Yes - FAULT FOUND

No - No Fault Found Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

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FAULT-TRACING FAILED - No Fault Found

Attempt New Test - Check canister purge (CP) valve

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