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.
Pinpoint Test T: The Cruise Control Indicator Is Never/Always On
2005 Ford Taurus SEL, 4D SedanSECTION Pinpoint Test T: The Cruise Control Indicator Is Never/Always On
- T1 CHECK THE CRUISE CONTROL INDICATOR
- Key in ON position.
- Does the cruise indicator remain illuminated?
- Yes : REFER to SPEED CONTROL to continue diagnosis of the cruise control.
- No : GO to T2.
- T2 CHECK CIRCUIT 203 (OG/LB) FOR AN OPEN BETWEEN THE INSTRUMENT CLUSTER AND THE SPEED CONTROL SERVO
- Key in OFF position.
- Disconnect: Instrument Cluster C220.
- Disconnect: Speed Control Servo C122.
- Measure the resistance between instrument cluster C220 pin 16, circuit 203 (OG/LB), harness side and speed control servo C122 pin 1, circuit 203 (OG/LB), harness side.
- Is the resistance less than 5 ohms?
- Yes : GO to T3.
- No : REPAIR the circuit. TEST the system for normal operation.
- T3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all the instrument cluster connectors.
- Check for:
- corrosion
- pushed-out pins
- Connect all the instrument cluster connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
- No : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
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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.