GM Service Manual Online
For 1990-2009 cars only

Scan Tool Data Definitions Cruise Control

Cruise Control Active: Displays Yes or No. The status of the cruise engaged signal. The cruise control module grounds the circuit when cruise control is on.

Cruise Inhibit Reason: The scan tool displays the last cruise control disengage. There are 20 possable causes for cruise control disengagement.

Cruise Release Clutch/TCC Pedal Switches: Displays ON or Off. The status of the cruise release signal circuit. The TCC/Brake pedal switch and the Clutch Pedal Position (CPP) switch if equipped, are normally closed switches, in series, controlling the cruise control cancel circuit.

Cruise Inhibit Signal Command: Displays ON or OFF. Indicates if the PCM is commanding the cruise control module to inhibit cruise control operation.

Vehicle Speed Sensor: Displays km/h and mph. The vehicle speed sensor is converted into km/h and mph for display.

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.

Active Brake Yaw: A Class 2 message is received by the PCM that the Brake Yaw 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.

Brake: The PCM senses any brake active operation.

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.