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CONDITION POSSIBLE CAUSES CORRECTION REAR FOG LAMPS DO NOT EXTINGUISH 1. Inoperative supply circuit. 1. Test and repair shorted rear fog lamp 2. Inoperative control circuit. 2. Test and repair shorted rear fog lamp 3. Inoperative relay. 3. Test and replace rear fog lamp relay as 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 TURN SIGNAL LAMPS CONDITION POSSIBLE CAUSES CORRECTION ONE TURN SIGNAL LAMP DOES NOT ILLUMINATE 1. Inoperative or missing bulb. 1. Test and replace turn signal bulb as 2. Inoperative ground circuit. 2. Test and repair open ground circuit as 3. Inoperative supply circuit. 3. Test and repair open right or left turn ALL RIGHT SIDE AND/OR ALL LEFT SIDE TURN SIGNAL LAMPS DO NOT FLASH 1. Inoperative sense circuit. 1. Test and repair open right or left turn 2. Inoperative signal circuit. 2. Test and repair open right or left turn 3. Inoperative switch. 3. Test and replace multi-function switch as 4. Inoperative flasher. 4. Replace hazard switch/combination ALL RIGHT SIDE OR ALL LEFT SIDE TURN SIGNALS FLASH TOO RAPIDLY (MORE THAN 100 FLASHES PER MINUTE) 1. Inoperative or missing bulb. 1. Test and replace turn signal bulb as 2. Inoperative ground circuit. 2. Test and repair open ground circuit as 3. Inoperative signal circuit 3. Test and repair open right or left turn 4. Inoperative flasher. 4. Replace hazard switch/combination 8L - 42 LAMPS/LIGHTING - EXTERIOR KJ |