Signal Too High - Permanent Fault

Signal too high. Permanent fault

Checking the components and wiring
Check the canister valve's resistance.
Check the signal line between control module #B40 (#B50) and the canister valve, connection 2, for short-circuiting to voltage according to: Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault

Hint: Use an electrician's screwdriver with at least a 3 W bulb to determine whether there is a short-circuit to supply voltage in the cable.

Remedy as necessary.

Other information
- Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- To access/replace the canister valve, see: Replacing the shut-off valve for the carbon filter container Service and Repair
- Component specifications Specifications
- For information about signals 5-cylinder engine, see: Signal specification Signal Specification, ECM
- For information about signals 6-cylinder engine, see: Signal specification Signal Specification, ECM










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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the components and wiring

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