Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

High Beam Headlamps Will Not Turn On

Test 1 - 4:




Test 6 - 10:






SYMPTOM
HIGH BEAM HEADLAMPS WILL NOT TURN ON

POSSIBLE CAUSES
- Fused high beam relay output short to ground
- High beam relay output CKT open
- Open fused B(+)
- High beam relay
- Fuses
- High beam switch sense open
- High beam relay control circuit open
- BCM high beam control circuit
- BCM high beam switch sense open
- Jumper high beam switch sense to ground