Symptom Chart
WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
HEADLAMP SYMPTOM CHART
| Condition |
Possible Sources |
Action |
- Both headlamps are inoperative
|
- Circuitry
- Headlamp switch
- Multifunction switch
|
|
- The low beams are inoperative
|
- Circuitry
- Multifunction switch
|
|
- The high beams are inoperative
|
- Circuitry
- Multifunction switch
|
- CARRY OUT the multifunction switch component test. Refer to COMPONENT TESTING
for component testing.
- If the multifunction switch is OK, REPAIR circuit 12 (LG/BK). TEST the system for normal operation.
- If the multifunction switch is not OK, INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES
.
TEST the system for normal operation.
|
- One low beam headlamp is inoperative
|
|
- MEASURE the resistance between the inoperative headlamp connector pin 2, circuit 57 (BK) harness side and ground.
- If the resistance is less than 5 ohms, REPAIR circuit 13 (RD/BK). TEST the system for normal operation.
- If the resistance is not less than 5 ohms, REPAIR circuit 57 (BK). TEST the system for normal operation.
|
- One high beam headlamp is inoperative
|
|
- REPAIR circuit 12 (LG/BK). TEST the system for normal operation.
|
- The headlamps are on continuously
|
- Circuitry
- Headlamp switch
- Multifunction switch
|
|
- The Flash-to-Pass Feature Is Inoperative
|
- Circuitry
- Multifunction switch
|
|