Signal Missing. Permanent Fault

Signal missing. Permanent fault

Checking connector








- Ignition off.
- Check turbocharger (TC) control valve connector for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- Reinstall components, reconnect connectors etc.
- Ignition on.
- Activate turbocharger (TC) control valve.
- A clicking sound should be heard from the turbocharger (TC) control valve.
If the function is OK the cause of the fault was loose connections in the connector.

Other information
- To access/replace the turbocharger (TC) control valve, see Replacing the turbocharger (TC) control valve, B5234T9, B5244T7 Replacing the Turbocharger (TC) Control Valve.













Is the function OK?

Yes - Fault has been remedied

No - Checking component and wiring

-------------------------------------------------

Checking component and wiring
Check signal cable between engine control module (ECM) #A38 (#A38) and turbocharger (TC) control valve #2 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check power supply cable between turbo charger valve #1 and system relay for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.

Other information
- To connect the breakout box, see Connecting the breakout box, B5234T9, B5244T7 Connecting The Breakout Box.
- To access/replace the turbocharger (TC) control valve, see Replacing the turbocharger (TC) control valve, B5234T9, B5244T7 Replacing the Turbocharger (TC) Control Valve.
- For information about signals, see Signal specification Signal Specifications.
- Turbocharger (TC) control valve #1 has power supply via the system relay.














Continue - Verification

-------------------------------------------------

Verification




Verification

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




- Ignition off.
- Reinstall connectors, components etc.
- Ignition on.
- Activate turbocharger (TC) control valve
- A click should be heard from the turbocharger (TC) control valve.
- Check that the function is OK.









Is function OK ?

Yes - VERIFIED

No - VERIFICATION FAILED

------------------------

VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

-------------------------------------------------

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

------------------------

Attempt New Test - Checking connector

-------------------------------------------------