Operation CHARM: Car repair manuals for everyone.

Signal Too High






Signal too high

Checking software




- Ignition on.
Click on the VCT2000 symbol to start the read out and check the software version in the Engine control module (ECM).









Continue - Checking the status

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Checking the status




- Ignition on.
Activate the valve in the leak diagnostic unit.
Check if the fault is permanent or intermittent.
The valve clicks when it is activated.
The fault is permanent if the valve does not activate.
If the valve is activated, this is an indication that the fault was present previously but that it is not active at the moment, intermittent fault.






Continue - Checking the wiring

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Checking the wiring
Check the cable between engine control module (ECM) terminal #B46 (#C46) and leak diagnostic unit terminal #3. Check for a short-circuit to supply voltage.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting The Breakout Box, Engine Control Module (ECM)
- Signal specification Signal Specification, Engine Control Module (ECM)
- Leak diagnostic pump Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals














Continue - Verification

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Verification




Verification

Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Click the VCT2000 symbol to activate the valve in the leak diagnostic unit.
The valve must click.
Check that the function is OK.





Is the function OK?

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 software

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