Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Ford ThunderbirdFACTORY OEM SERVICE PROCEDURE
Inspection and Verification: Notes
NOTE:
The ABS module must be configured upon replacement. Refer to MODULE CONFIGURATION
.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical and electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Wheel speed sensor ring
- Base brake concerns
- HCU
- Tire pressure
- Tire size or mismatched tires
- Underhood auxiliary junction box (AJB) Maxi fuse(s):
- 14 (30A)
- 22 (30A)
- Central junction box (CJB) fuse(s):
- 5 (5A)
- 4 (5A)
- 3 (5A)
- ABS module
- Wheel speed sensors
- Brake pedal position (BPP) switch
- Circuitry
- ABS Test connector
- Traction control switch
- If the fault is not visually evident, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel 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 manual .
- Carry out the DATA LINK DIAGNOSTIC TEST. If the diagnostic tool responds with:
- CKT914, CKT915, or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to MODULE COMMUNICATIONS NETWORK .
- NO RESP/NOT EQUIP for the ABS module, Go To PINPOINT TEST A: NO COMMUNICATION WITH THE ANTI-LOCK BRAKE SYSTEM (ABS) MODULE .
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the ABS module.
- If the DTCs retrieved are related to the concern, go to the Anti-Lock Brake System (ABS) Module Diagnostic Trouble Code (DTC) Index to continue diagnostics.
- If no DTCs related to the concern are retrieved, GO to Symptom Chart.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.