Signal Too Low

Signal too low

Checking the component
Check the turbocharger (TC) control valve (A) by activating it. The turbocharger (TC) control valve must click when it is activated.

Hint: The operation of the turbocharger (TC) control valve can be intermittent. A damaged turbocharger (TC) control valve can be difficult to detect during activation.

Check that the hose (1) between the press servo for the boost pressure control (BPC) valve (B) and the turbocharger (TC) control valve (A) is correctly installed. Check for damage/blockage.
Check that the hose (2) between the charge air pipe and the turbocharger (TC) control valve (A) is correctly installed. Check for damage/blockage.
Check the setting of the pressure servo for the boost pressure control (BPC) valve (B). Check that the pressure servo for the boost pressure control (BPC) valve is functioning correctly.
Check the operation of the boost pressure control (BPC) valve (C). Check that the boost pressure control (BPC) valve (C) is not sticking.
Remedy as necessary.

Other information:
- Actuator turbo pressure (vacuum) Service and Repair









Välj Fortsätt.

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.
- Test drive the vehicle on the road so that driving conditions with a high boost pressure are experienced
- Connect VCT2000 to the data link connector (DLC) without switching off the engine.

Note! If the engine is switched off, the stored fault status will be erased and the test drive will have to be repeated.

Read off the diagnostic status and the fault status for the diagnostic trouble code (DTC).
Check that the diagnostic is "Completed" and that the fault status is "No fault detected". The function is faulty if the fault status is "Signal too high" or "Signal too low".









Is the fault status "No fault detected"?

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

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