LEMON Manuals: Even more car manuals for everyone
Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Lamps & Lighting - Exterior) >> Lamps/Lighting - Exterior >> Diagnosis And Testing >> Diagnosis And Testing - Exterior Lamps >> Fog Lamps

Fog Lamps

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
CONDITION

CONDITION POSSIBLE CAUSES CORRECTION
FOG LAMPS ARE DIM WITH ENGINE IDLING OR IGNITION TURNED OFF.
  1. Loose or corroded battery cables.
  2. Loose or worn generator drive belt.
  3. Charging system output too low.
  4. Battery has insufficient charge.
  5. Battery is sulfated or shorted.
  6. Poor lighting circuit Z1-ground.
  7. Faulty CTM.
  1. Clean and secure battery cable clamps and posts.
  2. Adjust or replace generator drive belt.
  3. Test and repair charging system.
  4. Test battery state-of-charge.
  5. Load test battery.
  6. Test for voltage drop across Z1-ground locations.
  7. Replace CTM.
FOG LAMP BULBS BURN OUT FREQUENTLY
  1. Charging system output too high.
  2. Loose or corroded terminals or splices in circuit.
  3. Faulty CTM.
  1. Test and repair charging system.
  2. Inspect and repair all connectors and splices.
  3. Replace CTM.
FOG LAMPS ARE DIM WITH ENGINE RUNNING ABOVE IDLE
  1. Charging system output too low.
  2. Poor lighting circuit Z1-ground.
  3. High resistance in fog lamp circuit.
  4. Faulty CTM.
  1. Test and repair charging system.
  2. Test for voltage drop across Z1-ground locations.
  3. Test amperage draw of fog lamp circuit.
  4. Replace CTM.
FOG LAMPS FLASH RANDOMLY
  1. Poor lighting circuit Z1-ground.
  2. High resistance in fog lamp circuit.
  3. Faulty fog lamp switch.
  4. Loose or corroded terminals or splices in circuit.
  5. Faulty CTM.
  1. Test for voltage drop across Z1-ground locations.
  2. Test amperage draw of fog lamp circuit.
  3. Replace headlamp switch.
  4. Inspect and repair all connectors and splices.
  5. Replace CTM.
FOG LAMPS DO NOT ILLUMINATE
  1. Blown fuse for fog lamp.
  2. No Z1-ground at fog lamps.
  3. Faulty fog lamp switch.
  4. Broken connector terminal or wire splice in fog lamp circuit.
  5. Faulty or burned out bulb.
  6. Faulty CTM.
  1. Replace fuse.
  2. Repair circuit ground.
  3. Replace headlamp switch.
  4. Repair connector terminal or wire splice.
  5. Replace bulb.
  6. Replace CTM.
FOG LAMPS ARE INOPERATIVE AND FOG LAMP INDICATOR LIGHT ALWAYS STAYS ON.
  1. Fog lamp/DRL (1) feed shorted to ground.
  1. Check wiring circuit from fog lamp/DRL (1) fuse to fog lamp. Trace short circuit in wiring and repair.
FOG LAMPS ARE INOPERATIVE AND FOG LAMP INDICATOR LIGHT IS ILLUMINATED.
  1. Fog lamp/DRL (1) fuse defective.
  2. 2. Open circuit from fog lamp fuse to fog lamp.
  1. Trace short circuit and replace fuse.
  2. 2. Check wiring circuit from fog lamp/DRL (1) fuse to fog lamp. Trace open circuit in wiring and repair.
PARK LAMPS ARE INOPERATIVE. FOG LAMP INDICATOR IS ON WHEN ALL SWITCHES ARE OFF AND FUNCTIONS OPPOSITE TO FOG LAMPS.
  1. Park lamp feed is shorted.
  1. Check wiring circuit from park lamp fuse to headlamp switch. Trace short circuit in wiring and repair.
PARK LAMPS ARE INOPERATIVE. FOG LAMP INDICATOR FUNCTIONS OPPOSITE TO FOG LAMPS.
  1. Park lamp fuse is faulty.
  2. Open circuit from park lamp fuse to Headlamp switch.
  1. Trace short circuit and replace fuse.
  2. Check wiring circuit from park lamp fuse to headlamp switch. Trace open circuit in wiring and repair.
(1) Canada vehicles use Daytime Running Lamps (DRL).
scientia non olet · About LEMON Manuals