Symptom Troubleshooting Chart - Headlamps

HEADLAMPS TROUBLESHOOTING CHART

Problem	Possible Cause	Action
No communication with the smart junction box (SJB)	Wiring, terminals or connectors Smart Junction Box (SJB)	See PINPOINT TEST 1: DTC B106E - SOLID STATE DRIVER DISABLED DUE TO SHORT CIRCUIT .
Both headlamps are inoperative	Fuse Wiring, terminals or connectors Headlamp switch Multifunction switch Smart Junction Box (SJB)	See PNPOINT TEST 1: BOTH HEADLAMPS ARE INOPERATIVE .
Both low beams are inoperative	Wiring, terminals or connectors Multifunction switch Smart Junction Box (SJB)	See PINPOINT TEST 2: THE LOW BEAMS ARE INOPERATIVE .
Both high beams are inoperative	Fuse Wiring, terminals or connectors Multifunction switch Smart Junction Box (SJB)	See PINPOINT TEST 3: THE HIGH BEAMS ARE INOPERATIVE .
One low beam headlamp is inoperative	Fuse Wiring, terminals or connectors Smart Junction Box (SJB)	See PINPOINT TEST 4: ONE LOW BEAM HEADLAMP IS INOPERATIVE .
One high beam headlamp is inoperative	Wiring, terminals or connectors	Repair circuit (V/O). TEST the system for normal operation.
The headlamps are on continuously	Wiring, terminals or connectors Headlamp switch Multifunction switch Smart Junction Box (SJB)	See PINPOINT TEST 5: THE HEADLAMPS ARE ON CONTINUOUSLY .
The flash-to-pass feature is inoperative	Fuse Wiring, terminals or connectors Multifunction switch Smart Junction Box (SJB)	See PINPOINT TEST 6: THE FLASH-TO-PASS FEATURE IS INOPERATIVE .