Inspection and Verification: Notes
WARNING: This page is about a different car, the 2010 Ford Pickup, 2010 Ford F550 Super Duty, 2010 Ford F450 Super Duty, and 2010 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
Visual Inspection Chart Mechanical Electrical - Front axle assembly
- Pulse Vacuum Hublock (PVH)
- Shift motor
- Synchronization clutch
- Driveshaft and U-joints
- Vacuum leaks
- Fluid leaks
- Matching tire sizes
- Transfer case
- Smart Junction Box (SJB) fuses:
- 35 (10A)
- 40 (20A)
- 43 (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.
-
NOTE: Make sure to use the latest scan tool software release.
If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
-
NOTE: The Vehicle Communication Module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM .
If the scan tool does not communicate with the VCM :
- check the VCM connection to the vehicle.
- check the scan tool connection to the VCM .
- refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no power to the scan tool.
- If the scan tool does not communicate with the vehicle:
- verify the ignition is ON.
- verify the scan tool operation with a known good vehicle.
- refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the PCM.
- Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
- If the network test passes, retrieve and record Continuous Memory Diagnostic Trouble Codes (CMDTCs).
- If the DTCs retrieved are related to a driveability concern, refer to the INTRODUCTION - GASOLINE MODELS before proceeding to the next step.
- If the DTCs retrieved are related to the concern, go to the 4X4 CONTROL MODULE DTC CHART to continue diagnosis.
- If the DTCs retrieved are not found in the 4X4 Control Module DTC Chart, refer to the DTC Chart in MULTIFUNCTION ELECTRONIC MODULES .
- If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART - ELECTRONIC SHIFT or GO to SYMPTOM CHART - NVH .