Operation CHARM: Car repair manuals for everyone.

Signal Too High






Signal too high

Checking the component and wiring

Hint: The diagnostic trouble code (DTC) for this fault can be stored in the central electronic module (CEM). Reading diagnostic trouble codes (DTCs) in the central electronic module (CEM).

Check the signal cable between engine control module (ECM) terminal #B17 (#C17) and the central electronic module (CEM). 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)
- 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.
Read the position of the ignition key. Check that the ignition setting position is OFF when the ignition key is in position 2 (ignition on) and ON when the ignition key is in position 3 (start).
Check that the value read for the ignition key position is correct.





Is the value correct?

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 the component and wiring

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