Inspection and Verification: Notes
WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. 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 mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Front axle assembly
- Pulse vacuum hublocks (PVH)
- Shift motor
- Synchronization clutch
- Driveshaft and U-joints
- Vacuum leaks
- Fluid leaks
- Matching tire sizes
- Transfer case
- Battery junction box (BJB) fuse 3 (30A)
- Central junction box (CJB) fuse:
- 19 (10A)
- 27 (15A)
- 33 (15A)
- 45 (10A)
- Wiring harness
- 4X4 control module
- Shift relays
- Shift motor encoder assembly
- Mode select switch (MSS)
- Connector(s)
- PVH solenoid assembly
- Vacuum solenoid (diesel only)
- Circuitry
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, connect the diagnostic tool to the data link connector 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 (if using NGS+).
- 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 data link diagnostics test. If the diagnostic tool responds with:
- SCP+, SCP-, UBP, CAN or ISO circuits fault; all electronic control units no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK article.
- No response/not equipped for powertrain control module (PCM). Refer to MODULE COMMUNICATIONS NETWORK article to diagnose module communication problems.
- No response/not equipped for 4X4 control module, go to Pinpoint Test G .
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the 4X4 control module.
- If the DTCs retrieved are related to the concern, go to the 4X4 Control Module (DTC) Chart to continue diagnostics.
- If no DTCs related to the concern are retrieved, go to the Symptom Chart.