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.
2006 Ford Expedition RWDFACTORY OEM SERVICE PROCEDURE
Steering System DTCS
AIR SUSPENSION MODULE/VAPS DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Perform Test |
|---|---|---|---|
| B1317 | Battery Voltage High | Air Suspension Control Module | REFER to PINPOINT TEST C: DTC B1317/B1318 -- BATTERY VOLTAGE HIGH/LOW . |
| B1318 | Battery Voltage Low | Air Suspension Control Module | REFER to PINPOINT TEST C: DTC B1317/B1318 -- BATTERY VOLTAGE HIGH/LOW . |
| B1342 | ECU is Defective | Air Suspension Control Module | INSTALL a new air suspension module. REFER to AIR SUSPENSION MODULE . |
| C1897 | Steering VAPS Circuit Loop Failure | Circuit, Valve Solenoid, Air Suspension Module | GO to PINPOINT TEST B . |
Factory Service Tools
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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.
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