DTC U0122-87: Communication Error With DSC HU/Cm [ALH/AFS/ALV]
U0122:87 (ALH/AFS/ALV) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Communication error with DSC HU/CM |
| Detection condition |
- The auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module cannot receive CAN signal from the DSC HU/CM.
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| Fail-safe |
- The headlight leveling actuator is stopped at the position when the malfunction is determined.
- Perform the following controls with the adaptive LED headlights turned on. (with adaptive LED headlights)
- Turn off glare-free high beam.
- Set wide-range low beam as basic light distribution.
|
| Possible cause |
- Malfunction in CAN communication line between DSC HU/CM and auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module
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| Repeatability verification procedure |
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| System wiring diagram |
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