Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information HCM-U041668

Condition
The Headlamp Control Module (HCM) receives information from the right-hand height sensor via the Suspension Module (SUM).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The signal from one of the height sensors has implausible voltage.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.
- Battery voltage higher than 10 V.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- Shortest headlamp range will be used.

Possible source
- Fault-trace in transmitting control module.

Fault symptom[s]
- Headlights/Vertical adjustment not influenced by steering wheel
- Headlights/Headlight aim is off
- Text window and warning symbol/Text message