Signal Missing

Signal missing

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













Is the evaporative emission system (EVAP) valve working?

Yes - Fault Found

No - Checking the components and wiring

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Checking the components and wiring
Check the resistance of the evaporative emission system (EVAP) valve.
Check the signal cable between engine control module (ECM) terminal #A9 (#A9) and evaporative emission system (EVAP) valve terminal #2. Check for an open-circuit.
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:
- Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- For information about signals for 5 cylinder engines: Signal specification Signal Description / Specification
- For information about signals for 6 cylinder engines: Signal specification Signal Description / Specification
- For the location of components on 5 cylinder engines, see: Location of components Locations
- For the location of components on 6 cylinder naturally aspirated engines, see: Location of components Locations
- For the location of components on 6 cylinder turbocharged engines, see: Location of components Locations
- 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 the connectors, reinstall components etc.
- Ignition on
- Activate the evaporative emission system (EVAP) valve.
A click should be heard when the evaporative emission system (EVAP) valve is activated.





Is the evaporative emission system (EVAP) 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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