Signal Missing. Permanent Fault

Signal missing. Permanent fault

Checking the terminal








- Ignition off
- Turbocharger (TC) control valve connector disconnected.
Check the turbocharger (TC) control valve connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.





Were any faults found?

Yes - Verification

No - Checking the turbocharger (TC) control valve

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Checking the turbocharger (TC) control valve




- Turbocharger (TC) control valve connector disconnected.
Connect an ohmmeter between turbocharger (TC) control valve connector terminals 1 and 2.









The ohmmeter should read approximately 30 ohms.

OK - Checking the power supply

Not OK - Defective turbocharger (TC) control valve

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Checking the power supply




- Ignition on.
Connect a voltmeter between turbocharger (TC) control valve connector terminal 1 (control module side) and the ground terminal.









The voltmeter should read battery voltage for 2 seconds immediately after the ignition is switched on.

OK - Checking the signal cable

Not OK - Checking the signal cable

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Checking the signal cable




- Ignition off.
Check the cable between turbocharger (TC) control valve connector terminal 2 and engine control module (ECM) connector terminal 5 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.













Select Continue.

Continue - Verification

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Defective turbocharger (TC) control valve
Try a new turbocharger (TC) control valve according to Replacing the turbocharger (TC) control valve Replacing Turbocharger (TC) Control Valve.

Select Continue.

Continue - Verification

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Checking the signal cable




- Ignition off.
Check the cable between turbocharger (TC) control valve connector terminal 1 and system relay 2/14 terminal 3 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.













Select Continue.

Continue - Verification

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Verification








- Reconnect the connectors, reinstall components etc.
- Ignition on.
Activate the turbocharger (TC) control valve.





Does the turbocharger (TC) control valve click?

Yes - FAULT FOUND

No - No Fault FoundFault-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 terminal

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