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.
2005 Ford Freestar BaseFACTORY OEM SERVICE PROCEDURE
Speed Control
SPEED CONTROL ACTUATOR DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTCs | Description | Source | Perform Test |
|---|---|---|---|
| B1318 | Low Ignition Voltage During Speed Control Operation | Speed Control Actuator | GO to PINPOINT TEST L . |
| B1342 | ECU is Defective | Speed Control Actuator | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new speed control actuator. REFER to SPEED CONTROL ACTUATOR . CLEAR the DTCs. REPEAT the self-test. |
| C1109 | Throttle Did Not Return To Idle After Self-Test | Speed Control Actuator | GO to PINPOINT TEST K . |
| C1126 | Command Switch Stuck For 2 Minutes Or Longer | Speed Control Actuator | GO to PINPOINT TEST H . |
| C1127 | Deactivator Switch Stuck Open | Speed Control Actuator | If the vehicle is equipped with stability assist, GO to PINPOINT TEST I . If the vehicle is not equipped with stability assist, GO to PINPOINT TEST J . |
| C1179 | Excessive Cable Slack In The Speed Control Cable | Speed Control Actuator | GO to PINPOINT TEST K . |
| U1027 | Missing or Invalid Throttle Message | Speed Control Actuator | GO to PINPOINT TEST M . |
| U1041 | Missing or Invalid Vehicle Speed Message | Speed Control Actuator | GO to PINPOINT TEST M . |
| U1051 | Missing or Invalid Brake Message | Speed Control Actuator | GO to PINPOINT TEST M . |
| U1059 | Missing or Invalid PRNDL Message | Speed Control Actuator | GO to PINPOINT TEST M . |
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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