Special tool
 | Digital Multimeter 105-R0051 or equivalent |
 | Electrical Probe Kit 29-011A |
Inspection and verification
1. Check the customer complaint.
2. Perform a visual inspection for obvious signs of mechanical or electrical damage.
Visual inspection table
Electrical factors:
- Fuse Box(s)
- Lamp(s)
- Electrical connector(s)
- Wiring harness
3. If an obvious cause for the problem you have identified or the customer has described is found, correct it (if possible) before proceeding with further actions.
4. If the problem is not visually obvious, check the symptom and refer to the Symptom Table.
Table of signs of malfunction
|
State |
Possible Causes |
Action |
|
•Lack of communication with the powertrain control module (PCM) - vehicle speed output signal (with xenon headlights) |
•Electric circuit •Xenon headlight control module/headlight leveling sensor •Powertrain Control Module (PCM) |
•If any diagnostic trouble codes (DTCs) are found, check the system using the WDS and follow the instructions in that tool. CLEAR the diagnostic trouble codes and CHECK the system for proper operation. |
|
•No connection with General Electronic Module (GEM) (with xenon headlights) |
•Data transmission bus (ISO 9141) •Xenon headlight control module/headlight leveling sensor •General Electronic Module (GEM) |
•For additional information, see Section 418-00. |
|
•Headlights of both types (low and high beam) do not work |
•Fuse(s) •Electrical circuit(s) •Central Junction Box (CJB) |
• Proceed to PINPOINT TEST H |
|
•Low beam headlights do not work |
•Fuse(s) •Electrical circuit(s) •Daytime Running Lights (DRL) Relay •Low beam relay •Light switch •Battery Junction Box (BJB) |
• Proceed to PINPOINT TEST I |
|
•High beam headlights do not work |
•Electrical circuit(s) •High beam relay •Multifunctional switch |
• Proceed to PINPOINT TEST J |
|
•One low beam headlight does not work (high beam headlights are OK) |
•Fuse box •Electrical circuit(s) •Headlight |
• Proceed to PINPOINT TEST K |
|
•One high beam headlight does not work (low beam headlights are OK) |
•Fuse box •Electrical circuit(s) •Headlight |
• Proceed to PINPOINT TEST L |
|
•The headlights are constantly on |
•Electrical circuit(s) •Low beam headlight relay •High beam headlight relay •Headlight cleaning relay •Light switch •Multifunctional switch •Xenon headlight control module/headlight leveling sensor •Instrument panel |
• Proceed to PINPOINT TEST M |
|
•The headlight signaling function does not work |
•Electrical circuit(s) •Multifunctional switch |
• Proceed to PINPOINT TEST N |
[The text of the article was copied from the website: Fordbook.ru]