Signal Too High. Permanent Fault

Signal too high. Permanent fault

Checking the turbocharger (TC) control valve








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









The ohmmeter should read approximately 23 ohms at 20°C.

OK - Checking the signal cable

Not OK - Defective turbocharger (TC) control valve

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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 The Turbocharger (TC) Control Valve.

Continue - Verification

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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) terminal 5. Check for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.













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 Found 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 - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the turbocharger (TC) control valve

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