Normal Operation
WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
When the high beams are turned on, the smart junction box (SJB) sends a voltage signal to the instrument cluster through circuit SBR14 (BN/RD) to illuminate the high beam indicator. The instrument cluster provides the bulb ground through circuit GD161 (BK/YE).
Possible Causes
- Bulb
- Circuit SBR14 (BN/RD) open
- Circuit GD161 (BK/YE) open
- SJB
- Instrument cluster