Signal Too High. Permanent Fault

SIGNAL TOO HIGH. PERMANENT FAULT





Checking Turbocharger Control Valve

- Ignition OFF.
- Disconnect turbocharger (TC) control valve.
- Connect an ohmmeter between turbocharger (TC) control valve connector terminals 1 and 2.

The ohmmeter should read approx. 24 Ohms at +20°C (68°F).

If reading is OK:
- Check cable between turbocharger (TC) control valve terminal 2 and engine control module (ECM) #B41 for a short-circuit to supply voltage.
- Then proceed to Verification section below.

If reading is incorrect:
- Try a new turbocharger (TC) control valve.
- Then proceed to Verification section below.





Verification

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

- Ignition ON.
- Activate turbocharger (TC) control valve.
- See Activating Components / Functions section
- A clicking sound should be heard from the turbocharger (TC) control valve when it is activated.

Is the turbocharger (TC) control valve working?

Yes:
- Fault corrected

No:
- Proceed to test step below.

Fault-Tracing Information

- The verification result shows that the fault persists.
- Do you want to exit fault-tracing?

Yes:
- Fault not corrected

No:
- Return to Checking Turbocharger Control Valve section above.