Operation CHARM: Car repair manuals for everyone.

Signal Too Low. Permanent Fault






Signal too low. 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 ground according to: Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Remedy as necessary.

Other information
- Connecting the breakout box, B5254T2 Connecting the Test 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
- For information about signals 6-cylinder engine, see: Signal specification Signal Specification









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 - Verification completed

No - 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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Attempt New Test - Checking the components and wiring

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