Signal Missing - Permanent Fault

Signal missing. Permanent fault

Checking the connector








- Ignition off
- Check the evaporative emission system (EVAP) valve connector. Check for contact resistance and oxidation
- Reinstall the components, reconnect the connectors etc.
- Ignition on
- Activate the evaporative emission system (EVAP) valve.
A click should be heard when the evaporative emission system (EVAP) valve is activated.
If the evaporative emission system (EVAP) valve is now OK this indicates that the fault was caused by poor contact in the connector.

Other information:
- For the location of components on 5 cylinder engines, see Location of components Locations
- For the location of components on 6 cylinder normally aspirated engines, see Location of components Locations
- For the location of components on 6 cylinder turbocharged engines, see Location of components Locations
- For information about signals on 5 cylinder engines, see Signal specification Signal Description / Specification
- For information about signals on 6 cylinder engines, see Signal specification Signal Description / Specification
- Checking wiring and terminals Checking Wiring And Terminals.













Is the evaporative emission system (EVAP) valve working?

Yes - Fault Found

No - Checking components and wiring

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Checking components and wiring
Check the resistance of the evaporative emission system (EVAP) valve.
Check the signal cable between control module terminal #A9 (#A9) and evaporative emission system (EVAP) valve terminal 2. Check the power supply between system relay terminal 3 and evaporative emission system (EVAP) valve terminal 1. Check for an open-circuit.
Remedy as necessary.

Other information:
- To connect the breakout box / access the control module, see Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- For the location of components on 5 cylinder engines, see Location of components Locations
- For the location of components on 6 cylinder normally aspirated engines, see Location of components Locations
- For the location of components on 6 cylinder turbocharged engines, see Location of components Locations
- For information about signals on 5 cylinder engines, see Signal specification Signal Description / Specification
- For information about signals on 6 cylinder engines, see Signal specification Signal Description / Specification
- Checking wiring and terminals Checking Wiring And Terminals.














Continue - Verification

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Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off.
- Reconnect connectors, reinstall components
- Ignition on.
- Activate canister purge (CP) valve.
A "click" should be heard when the canister purge (CP) valve is activated.









Is the canister purge (CP) valve working?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - Fault Found

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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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the connector

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