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 Windstar BaseFACTORY OEM SERVICE PROCEDURE
Cruise Control Systems DTCS
SPEED CONTROL SERVO DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTCs | Description | Source | Action/Go to |
|---|---|---|---|
| B1318 | Battery Voltage Low | Speed Control Servo | PINPOINT TEST C: DTC 1318 - BATTERY VOLTAGE LOW . |
| B1342 | ECU is Defective | Speed Control Servo | INSTALL a new speed control servo; REFER to ACTUATOR - SPEED CONTROL SERVO . TEST the system for normal operation. |
| C1109 | Throttle Position Did Not Return to Idle After Self-Test | Speed Control Servo | PINPOINT TEST F: DTC C1179 - SPEED CONTROL CABLE SLACK FAILURE, DTC C1109 - THROTTLE POSITION DID NOT RETURN TO IDLE AFTER SELF-TEST . |
| C1126 | Speed Control Switch Stuck for Two Minutes or Longer | Speed Control Servo | PINPOINT TEST D: DTC C1126 - SPEED CONTROL ACTUATOR SWITCH STUCK FOR TWO MINUTES OR LONGER . |
| C1127 | Deactivator Switch Circuit Failure Speed Control | Servo | If the vehicle is not equipped with stability assist, PINPOINT TEST E: DTC C1127 - DEACTIVATOR SWITCH CIRCUIT FAILURE . If the vehicle is equipped with stability assist, PINPOINT TEST N: DTC C1127 - DEACTIVATOR SWITCH CIRCUIT FAILURE (VEHICLES WITH STABILITY ASSIST) . |
| C1179 | Speed Control Cable Slack Failure | Speed Control Servo | PINPOINT TEST F: DTC C1179 - SPEED CONTROL CABLE SLACK FAILURE, DTC C1109 - THROTTLE POSITION DID NOT RETURN TO IDLE AFTER SELF-TEST . |
| U1027 | SCP Invalid or Missing Data for Engine RPM | PCM | CARRY OUT PCM self-test. |
| U1041 | SCP Invalid or Missing Data for Vehicle Speed | ABS | CARRY OUT ABS self-test. |
| U1051 | SCP Invalid or Missing Data for Brakes | REM | CARRY OUT REM self test. |
| U1059 | SCP Invalid or Missing Data for Transmission/Transaxle/ PRNDL | PCM | CARRY OUT PCM self-test. |
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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