Inspection and Verification
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Visually inspect the following for obvious signs of mechanical or electrical damage.VISUAL INSPECTION TABLE
Mechanical Electrical - Headlamp switch
- Circuitry
- Light sensor
- Smart junction box (SJB)
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.NOTE:
- Make sure the headlamp switch is in the OFF position.
- Make sure the multifunction switch is in the LOW BEAM position.
- If the cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.
- If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
- Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
- CAN circuit fault; all electronic control units no response/not equipped, refer to PINPOINT TEST M: NO HIGH SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION and/or PINPOINT TEST N: NO MEDIUM SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
- No response/not equipped for SJB, refer to PINPOINT TEST A: NO COMMUNICATION WITH THE SMART JUNCTION BOX (SJB) .
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the SJB.
- If the DTCs retrieved are related to the concern, go to the SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
- If no DTCs related to the concern are retrieved, GO to SYMPTOM TABLE .
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Action |
|---|---|---|
| B1342 | ECU is Faulted | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved again, INSTALL a new SJB. REFER to REMOVAL AND INSTALLATION . |
| B1472 | Lamp Headlamp Input Circuit Short to Ground | GO to PINPOINT TEST H . |
| B1692 | Autolamp Delay Circuit Short to Ground | GO to PINPOINT TEST H . |
| B1792 | Autolamp Sensor Input Short to Battery | GO to PINPOINT TEST H . |
| B1793 | Autolamp Sensor Input Circuit Short to Ground | GO to PINPOINT TEST G . |
| B2498 | Headlamp Switch OFF Position OPEN | GO to PINPOINT TEST H . |
| All other DTCs | - | REFER to DIAGNOSTIC TROUBLE CODE TABLE . |