VCFRONT_a520 — Right Headlamp Internal Error V2
Full alert identifier: VCFRONT_a520_rightHeadlampInternalErrorV2
Alert description
An internal condition affecting right headlamp functionality has been detected - certain light functions or the headlamp fan may be degraded or disabled
Potential impact
Some headlight functions may be unavailable or may not function as expected. Headlight functionality may return after vehicle sleep.
Set condition
The pixel matrix manager detects non-functional pixels or has communication issues, or the voltage measured across the boost rail, Lowbeam Flat, Ambient, DRL or Turn LEDs is out of range, or the LED drivers in the ECU have reported status flags, or certain values programmed in the matrix manager EEPROM are out of range, or the fan current or side marker current is out of range.
Clear condition
Clears when the HCMR is power cycled, which occurs during vehicle sleep.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a520.