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.
Scan Tool Data Definitions (Disengage History)
Important : The following data list terms MAY NOT apply to all vehicle lines.
ABS : Antilock Brake (ABS) is active.
ALDL : A scan tool message to inhibit cruise control operation is received by the PCM.
Brake : A class 2 message is received by the PCM that a basic brake problem has occurred.
Battery Voltage : The battery positive voltage is out of range.
Clutch Switch : A failure of the clutch switch has been detected.
CC Cancel Switch : A class 2 message is received by the PCM that a cruise cancel event has occurred.
CC Inhibit Circuit : A fault on the cruise control inhibit signal circuit has been detected.
Delta Vehicle Speed : When the vehicle speed is greater or less than the cruise control operating criteria speed.
Engine Not Running : Engine is not running
Engine Run Time : When the engine run time does not equal the cruise control enable criteria run time.
Engine Speed : When vehicle speed is greater or less than the cruise control enable criteria speed.
Injector : When any number of injectors are disabled by high mph.
Manual/Neutral CC : Vehicle is shifted into neutral while cruise control is in operation.
MPH Limited : When mph is limited, by the PCM controlling the fuel and electronic spark timing.
P0751 : 1-2 shift solenoid valve performance.
P0753 : 1-2 shift solenoid control circuit fault.
P0756 : 2-3 shift solenoid valve performance.
P0758 : 2-3 shift solenoid control circuit fault.
P0785 : 3-2 shift solenoid control circuit fault.
Park Brake Active : A Class 2 message is received by the PCM that the parking brake is active.
Serial Communications : A class 2 serial communication problem is detected.
SMCC Fault : A fault is detected with the stepper motor cruise control module.
TCS : When the traction control is active.
Trans : When the clutch pedal is pressed on a manual transmission vehicle or when the gear selector is shifted out of DRIVE during cruise control operation.
Vehicle Speed Fault : When a problem is detected with vehicle speed.
Vehicle Speed : Vehicle speed drops below the cruise control engaged criteria.
Active Brake Yaw : A Class 2 message is received by the PCM that the Brake Yaw is active.
Brake : The PCM senses any brake active operation.
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.