Signal Missing. Permanent Fault

Signal missing. Permanent fault

Checking connector








- Ignition off
- Check EVAP canister shut-off valve connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Reinstall components, reconnect connectors etc.
- Ignition on.
- Activate EVAP canister shut-off valve.
A "click" should be heard when the EVAP canister shut-off valve is activated.
If the EVAP canister shut-off valve is now OK this indicates that the fault was caused by poor contact in the connector.

Other information
- To access/replace the EVAP canister shut-off valve see.
- For information about signals, see Signal specification Signal Specifications.













Is the EVAP canister shut-off valve working?

Yes - FAULT FOUND

No - Checking wiring and components

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Checking wiring and components
Check EVAP canister shut-off valve resistance.
Check signal cable between control module #B40 (#B50) and EVAP canister shut-off valve terminal 2 and power supply between system relay terminal 3 and EVAP canister shut-off valve terminal 1 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.

Other information
- Connecting the breakout box/accessing the control module, see Connecting the breakout box, B5234T9, B5244T7 Connecting The Breakout Box.
- To access/replace the EVAP canister shut-off valve see.
- For resistance values, see Component specifications [1][2]Engine Control Module.
- For information about signals, see Signal specification Signal Specifications.















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 EVAP canister shut-off valve.
A "click" should be heard when the EVAP canister shut-off valve is activated.









Is the EVAP canister shut-off 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 - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking connector

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