Signal Too Low. Permanent Fault

Signal too low. Permanent fault

Checking and replacing the component
Remove relay 2/119 and check the relay socket's contacts for contact resistance and oxidation. Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Install the relay.
Activate the relay using the button on the control panel on the right rear door, window down.
If the function is now OK the fault was caused by a contact fault in the relay base.

Other information
- To access the window lift relay, see: Central electronic module (CEM), replacing Central Electronic Module (CEM), Replacing





Was the function OK?

Yes - Verification

No - Replacing the component

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

Replacing the component
Replace the relay, 2/119.
Activate the relay using the button on the control panel on the right rear door, window down.
If the function is OK the cause of the fault was a damaged relay (open circuit/short-circuiting in the relay coil).

Other information
- To access the window lift relay, see: Central electronic module (CEM), replacing Central Electronic Module (CEM), Replacing





Was the function OK?

Yes - Fault Found

No - Fault-tracing information

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

Verification




Verification

Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Ignition off.
- Connect connectors, install components etc.
- Ignition on.
Activate relay with switch unit on control panel on RH rear door, window down.

Does it work?

Yes - VERIFIED

No - VERIFICATION FAILED

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

VERIFIED - Fault Found

VERIFICATION FAILED - Fault-tracing information

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

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

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

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking and replacing the component

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