1. Verify the customer concern.
2. Visually inspect for obvious signs of electrical damage.
Visual Inspection Chart
Electrical
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step 4. If the cause is not visually evident, connect the Ford diagnostic equipment to the data link connector (DLC) and select the vehicle system to be tested from the diagnostic menu.
5. Retrieve the Diagnostic Trouble Code (DTC)s and refer to the DTC Index.
6. If no DTCs are retrieved or there is no communication with the module, proceed to the Symptom Chart to continue diagnostics.