Operation CHARM: Car repair manuals for everyone.

Signal Too Low






Signal too low

Checking the wiring








- Ignition off
- Disconnect central electronic module (CEM) connector C.
Check the cable for a short-circuit to ground.
Take readings between:
- Central electronic module (CEM) terminal #C28 (28) and transmission control module (TCM) terminal #A44.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- Signal specification Pinout Values and Diagnostic Parameters
- Location of components Locations
- 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.

Is the shift-lock working?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - Fault Found

VERIFICATION FAILED - 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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the wiring

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