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Home >> Ford Truck >> 2003 >> Expedition 2WD V8-5.4L SOHC VIN L >> Repair and Diagnosis >> Brakes and Traction Control >> Antilock Brakes / Traction Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> Anti-Lock Brakes with Traction Control and Stability Assist

Anti-Lock Brakes with Traction Control and Stability Assist

Inspection and Verification

NOTE: If a new stability assist module is installed it must be reconfigured.

1. Verify the customer's concern by operating the vehicle to duplicate the condition.
2. Verify the stoplamps operate correctly by depressing and releasing the brake pedal with the ignition switch in the OFF position. If the stoplamps do not operate correctly, refer to Lighting and Horns. If the stoplamps operate correctly, proceed to the next step.
3. Verify that the PRNDL operates correctly on the instrument cluster. If the PRNDL does not operate correctly, refer to Instrument Panel, Gauges and Warning Indicators. If the PRNDL operates correctly, proceed to the next step.





4. Inspect to determine if one of the mechanical or electrical concerns apply.
5. If the concern remains after the inspection, connect the scan tester to the Data Link Connector (DLC) located beneath the instrument panel, and select the vehicle to be tested from the scan tester menu. If the scan tester does not communicate with the vehicle:
^ Check that the program card is correctly installed.
^ Check the connection of the data link connector to the vehicle.
^ Check that the ignition switch is in the RUN position.
6. If the scan tester still does not communicate with the vehicle, refer to the scan tester manual.
7. Carry out the DATA LINK DIAGNOSTIC TEST. If scan tester responds with:
^ CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communication Network,
^ NO RESP/NOT EQUIP for stability assist module, GO to Pinpoint Test A. A
^ SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the stability assist module.
8. If the DTCs retrieved are related to the concern, go to Stability Assist Module Diagnostic Trouble Code (DTC) Index to continue diagnostics. Stability Assist Module Diagnostic Trouble Code (DTC) Index
9. If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures
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