Signal Too Low

Signal too low

Checking the component and wiring
Check the turbocharger (TC) control valve connector. Check for contact resistance. Check for oxidation.
Check the signal cable between engine control module (ECM) terminal #A51 (#A51) and turbocharger (TC) control valve terminal #2. Check for a short-circuit to ground.
Remedy as necessary.

Other information
- Connecting the breakout box, B5254T7 Connecting the Breakout Box, Engine Control Module (ECM)
- Signal specification, B5254T7 Signal Specification
- Actuator turbo pressure (vacuum), B5254T7 Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals













Continue - Verification

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Verification




Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Activate the turbocharger (TC) control valve.
A"clicking sound" should be heard when the turbocharger (TC) control valve is activated.





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 the component and wiring

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