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 for obvious signs of electrical damage.

VISUAL INSPECTION TABLE

Electrical
Smart junction box (SJB) fuse 15 (10A) Bulb(s) Circuitry Manual temperature control Steering wheel controls PRNDL display Adjustable pedal switch (if equipped) Center stack switches (includes the hazard, traction control [if equipped], and parking aid disable switches [if equipped]) Analog clock (if equipped) Decklid release switch (if equipped) Auxiliary climate control switches (if equipped) Door lock control switches Window control switches Headlamp switch Electronic automatic temperature control (EATC) module and switches Audio unit SJB Instrument cluster

Electrical

Smart junction box (SJB) fuse 15 (10A)
Bulb(s)
Circuitry
Manual temperature control
Steering wheel controls
PRNDL display
Adjustable pedal switch (if equipped)
Center stack switches (includes the hazard, traction control [if equipped], and parking aid disable switches [if equipped])
Analog clock (if equipped)
Decklid release switch (if equipped)
Auxiliary climate control switches (if equipped)
Door lock control switches
Window control switches
Headlamp switch
Electronic automatic temperature control (EATC) module and switches
Audio unit
SJB
Instrument cluster

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
Verify the exterior lamps operate correctly. If the exterior lamps do not operate correctly, refer to DIAGNOSIS AND TESTING to continue diagnosis of the exterior lamps.
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 circuits fault; all electronic control units no response/not equipped, refer to PINPOINT TEST O: NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL .
- No response/not equipped for SJB, refer to PINPOINT TEST A: NO COMMUNICATION WITH THE SMART JUNCTION BOX (SJB) .
- No response/not equipped for instrument cluster, refer to PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER .
- 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 and the instrument cluster.
If the DTCs retrieved are related to the concern, go to the SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX table.
If no DTCs related to the concern are retrieved, GO to SYMPTOM TABLE table.

SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC	Description	Source	Action
B1247	Panel Dim Switch Circuit Open	SJB	GO to PINPOINT TEST F .
B2026	Incandescent Backlighting Output Circuit Failure	SJB	GO to PINPOINT TEST D .
B2027	LED Backlighting Output Circuit Failure	SJB	GO to PINPOINT TEST D .
All other DTCs	-	SJB	REFER to PINPOINT TEST A: NO COMMUNICATION WITH THE SMART JUNCTION BOX (SJB) .