|
|
CONDITION POSSIBLE CAUSES CORRECTION BOTH LOW OR HIGH BEAM HEADLAMPS DO NOT ILLUMINATE 1. Inoperative or missing relay. 1. Test and replace low beam, high beam, 2. Inoperative control circuit. 2. Test and repair open low beam or high 3. Inoperative switch. 3. Test and replace multi-function switch as 4. Inoperative BCM inputs or 4. Use a diagnostic scan tool to test the HEADLAMPS DO NOT EXTINGUISH 1. Inoperative supply circuit. 1. Test and repair shorted headlamp low 2. Inoperative control circuit. 2. Test and repair shorted low beam or high 3. Inoperative relay. 3. Test and replace low beam, high beam, 4. Inoperative switch. 4. Test and replace multi-function switch as 5. Inoperative BCM inputs or 5. Use a diagnostic scan tool to test the HEADLAMPS WILL NOT SWITCH FROM HIGH TO LOW BEAMS, OR FROM LOW TO HIGH BEAMS 1. Inoperative relay. 1. Test and replace low beam, high beam, 2. Inoperative switch. 2. Test and replace multi-function switch as 3. Inoperative BCM inputs or 3. Use a diagnostic scan tool to test the HEADLAMP LEVELING NOTE: Before performing the following tests, confirm whether the park lamps operate properly. If the park 8L - 38 LAMPS/LIGHTING - EXTERIOR KJ |