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.
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HOMESERVICE MANUALSFORD2004FREESTAR V6-4.2L VIN 2REPAIR AND DIAGNOSISCRUISE CONTROLTESTING AND INSPECTIONPINPOINT TESTSTEST J
2004 Ford Freestar V6-4.2L VIN 2
Test J
2004 Ford Freestar V6-4.2L VIN 2SECTION Test J
PINPOINT TEST J: DTC C1127 - DEACTIVATOR SWITCH STUCK OPEN
Normal Operation
When the brake pedal is applied the speed control deactivator switch open. This causes circuit 535 (LB/RD) to open. The speed control actuator then releases the throttle, sending the actuator into standby mode until the speed control resume or set switch is pressed, the speed control is switched off or the ignition is turned off.
Possible Causes
- circuit 601 (LB/PK) open
- speed control deactivator switch
- speed control actuator
Test J1:
Test J1-J2:
Test J3-J4:
Normal Operation
When the brake pedal is applied the speed control deactivator switch open. This causes circuit 535 (LB/RD) to open. The speed control actuator then releases the throttle, sending the actuator into standby mode until the speed control resume or set switch is pressed, the speed control is switched off or the ignition is turned off.
Possible Causes
- circuit 601 (LB/PK) open
- speed control deactivator switch
- speed control actuator
RENDER: 1.0x
NO RELATED
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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.