Scan Tool Data Definitions

8-Digit GM Part Number: The scan tool displays the module GM part number.

A/C Clutch (Actual): The scan tool displays On or Off. On is displayed when the PCM has energized the A/C compressor clutch relay.

A/C Clutch (Desired): The scan tool displays On or Off. On is displayed when the IPM is requesting A/C system operation and the DIM has determined that none of the system performance limits are exceeded.

A/C Pressure: The scan tool displays 0-4000 kPa (0-580 psi). The output of the A/C refrigerant pressure sensor provided by the PCM over the Class 2 communication link.

A/C Requested: The scan tool displays Yes or No. The message sent out on class 2 to the PCM when A/C is requested.

Air inlet Dr Actual: The scan tool displays 0-255 Counts (0-5.00 Volts). The signal output from the feedback potentiometer on the recirculation actuator.

Air Inlet Dr Commanded: The scan tool displays 0-255 Counts (0-5.00 Volts). The desired position of the recirculation actuator.

Battery Reconnect: The scan tool displays On/Off. When the rear integration module (RIM) senses a battery reconnect the scan tool will display On.

Battery Voltage: The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the battery positive voltage circuit of the Module or the 72-08 battery voltage message from the DIM over class 2 line.

Brake to Shift Relay: Displays indicates ON when the rear integration module (RIM) applies voltage to the automatic transmission shift lock control power feed circuit.

Calibration ID: The scan tool displays the Calibration ID number for service identification.

Cigar Lighter Relay: The scan tool displays On/Off. Display indicates the commanded state of the cigar lighter relay.

Clutch Voltage: The scan tool displays Low or Normal. Low is displayed when the battery voltage is low, such that A/C compressor clutch slippage is possible.

Commanded Blower: The scan tool displays the module serial number.

Component Serial #8 - 11: Digits 8 to 11 of the component serial number of the control module.

Component Serial #8 - 12: Digits 8 to 12 of the component serial number of the control module.

Component Serial #12: Digit 12 of the component serial number of the control module.

Component Serial #13 - 16: Digits 13 to 16 of the component serial number of the control module.

Component Serial #17 - 18: Digits 17 to 18 of the component serial number of the control module.

Control Power: The scan tool displays On/Off. Display indicates the state of control power.

Coolant Temperature: The scan tool displays -40 to 120°C (-40 to 250°F). The information is received from the PCM on the class 2 communication line.

CTD State: The scan tool displays Alarm/Armed/Arm Pending/Ignition/Standby, indicating the state of the content theft deterrent system (CTD).

Daytime Running Lamp: The scan tool displays On/Off. The commanded state of the DRL relay.

Dr. Rear Heated Seats: The scan tool displays On/Off. Display indicates the commanded state of the driver rear heated seat.

Driver A/C Duct Temp: The scan tool displays -40 to 150°C (-40 to 300°F). The output of the upper left air temperature sensor.

Driver Door Jamb Sw.: The scan tool displays Off/On. The state of the jamb switch as detected by the door module.

Driver Htr. Duct Temp: The scan tool displays -40 to 150°C (-40 to 300°F). The output of the lower left air temperature sensor.

Driver Program Number: The scan tool displays 0-255 counts. This value will vary, depending on the air delivery mode and the air discharge temperature selected by the driver.

Driver Solar: The scan tool displays 0-255 counts. The solar load output of the sunload sensor assembly.

Evaporator Temp Status: The scan tool displays OK or Disengaged. Disengaged is displayed when the A/C compressor clutch has been disengaged to prevent evaporator freeze up.

Evaporator Temp.: The scan tool displays -40 to 21 5°C (-40 to 4200 F). The output of the A/C refrigerant low temperature sensor.

Flash to Pass Switch: The scan tool displays On/Off. The status of the flash to pass switch.

Front Courtesy Lamp Relay: The scan tool displays On/Off. Display indicates commanded state of the front courtesy lamp relay.

Front Fog Lamp Relay: The scan tool displays On/Off. The commanded state of the front fog lamp relay.

Front Fog Lamp Switch: The scan tool displays On/Off. The status of the front fog lamp switch.

Fuel Door Rel. Output: The scan tool displays On/Off. Display indicates the commanded state of the fuel door release relay.

Fuel Door Release Sw.: The scan tool displays On/Off. Display indicates the state of the fuel door release switch.

Head Lamp Switch: The scan tool displays On/Off. The status of the headlamp switch.

Heated Seats Inhibit: The scan tool displays On/Off. When On the RIM prevents activation of the heated seats.

Heated Seats Status: The scan tool displays On/Off. Display indicates the status of the heated seats.

High Beam Output: The scan tool displays On/Off.
The commanded state of the flash to pass control terminal.

Hood Jamb Switch: The scan tool displays On/Off.
Display indicates the state of the hood jamb switch.

Horn (Except SWC): The scan tool displays On/Off. Display indicates the commanded state of the horn replay.

Htr/Def.A/C Dr. Actual: The scan tool displays 0-255 Counts (0-5.00 Volts). The signal output from the feedback potentiometer on the mode actuator.

Htr/Def.A/C Dr. Commanded: The scan tool displays 0-255 Counts (0-5.00 Volts). The desired position of the mode actuator.

Ign. 3 Input: The scan tool displays Active/Inactive. Display indicates the state of the ignition 3 input.

Ign. Accessory: The scan tool displays Active/Inactive. Display indicates the state of the ignition accessory input.

Ign. Crank/Run: The scan tool displays Active/Inactive. Display indicates the state of the ignition crank/run input.

Ign. Run: The scan tool displays Active/Inactive. Display indicates the state of the ignition run input.

Ign. Unlock: The scan tool displays Active/Inactive. Display indicates the state of the ignition unlock input.

Ignition Counter: The scan tool displays 0 - 255 counts. The module counts each time the ignition is cycled.

Ignition Crank: The scan tool displays Active/Inactive. The scan tool displays Active when the DIM receives a battery voltage signal from the ignition switch.

Ignition Cycle Counter: The scan tool displays 0 - 100. Display indicates the number of ignition cycles up to 100.

Ignition Switch: The scan tool displays Accy/Crank/ Off/RAP/RAP-Unlock/Run/Unlock. The scan tool displays Accy when the accessory and unlock circuits of the DIM receives a battery voltage signal from the ignition switch. The scan tool displays Crank when the Crank/Run, Run and Unlock circuits of the DIM receives a battery voltage signal from the ignition switch. The scan tool displays Off when none of the power moding circuits of the DIM receive a battery voltage signal from the ignition switch. The scan tool displays RAP (Retained Accessory Power) when RAP is active and none of the power moding circuits of the DIM receive a battery voltage signal from the ignition switch. The scan tool displays RAP-Unlock when RAP is active and the Ign. Unlock circuit of the DIM receives a battery voltage signal from the ignition switch. The scan tool displays Run when all of the power moding circuits of the DIM receive a battery voltage signal from the ignition switch. The scan tool displays Unlock when the Unlock circuit of the DIM receives a battery voltage signal from the ignition switch.

Inadvertent Power Input: The scan tool displays Active/Inactive. Display indicates the state of the inadvertent power input.

Inadvertent Power Relay: The scan tool displays On/Off. The scan tool displays On when the key is in the ACCY. or ON position.

Incadescent Dim #1: Displays the percentage of dimming sent to the incandescent lamps.

Inside Air Temp (HVAC Sensors): The scan tool displays -40 to 60°C (-40 to 140°F). The output of the inside air temperature sensor.

Inside Air Temp Open/Short Data): The scan tool displays 0-255 Counts (0-5.00 Volts). The status of the sensor signal circuit is monitored. 0 counts (0 Volts) indicates a short to ground, 255 counts (5.00 Volts) indicates an open circuit.

Interior Dim Pot: Displays 0-5 volts. The interior dimmer switch input signal.

Interior Lamp Switch: The scan tool displays Auto or On. The status of the interior lamp switch.

Interior Temp. Sensor Fan: The scan tool displays *. This parameter is not used.

Julian Date of Build: The scan tool displays the module date of build in total calendar days.

Key In Ignition: The scan tool displays Yes/No. The scan too displays Yes when the key is in the ignition and the instrument panel integration module (IPM) receives a signal from the ignition switch.

Left AC Duct Temp: The scan tool displays -40 to 150°C (-40 to 300°F). The output of the upper left air temperature sensor.

Left Htr. Duct Temp.: The scan tool displays -40 to 150°C (-40 to 300°F). The output of the lower left air temperature sensor.

Left Rear Door Jamb Sw.: The scan tool displays On/Off. Display indicates the state of the left rear door jamb switch. On indicates the door is open and Off indicates the door is closed.

Left Solar Sensor: The scan tool displays 0-255 counts. The solar load output of the sunload sensor assembly.

Left Temp Dr Actual: The scan tool displays 0-255 counts (0 to 5 volts). The signal output from the feedback potentiometer on the left air temperature actuator.

Left Temp. Dr. Commanded: The scan tool displays 0-255 Counts (0-5.00 Volts). The desired position of the left air temperature actuator.

Lights On with Wipers: The scan tool displays On/Off. Display indicates the state of the wiper/washer system.

Load Reduction Active: The scan tool displays Yes/No. Display indicates the state of the IPM load reduction command.

Loadshed Lvl.1 Heated Seats: The scan tool displays Enabled or Disabled. The scan tool displays Disabled unless the RIM has entered level 1 of load management and commanded the Heated Seats OFF

Loadshed Lvl.1 R. Blower: The scan tool displays Enabled or Disabled. Enabled indicates that auxiliary blower motor operation has been limited due to a low battery condition.

Loadshed Lvl.1 R. Defog.: The scan tool displays Enabled or Disabled. The scan tool displays Disabled unless the RIM has entered level 1 of load management and commanded the rear defrost OFF.

Loadshed Lvl.2 Blower: The scan tool displays Enabled or Disabled. Enabled indicates that auxiliary blower motor operation has been prohibited due to a low battery condition.

Loadshed Lvl.2 Heated Seats: The scan tool displays Enabled or Disabled. The scan tool displays Disabled unless the RIM has entered level 2 of load management and commanded the Heated Seats OFF.

Loadshed Lvl.2 R. Defog.: The scan tool displays Enabled or Disabled. The scan tool displays Disabled unless the RIM has entered level 2 Of load
management and commanded the rear defrost OFF.

Low Beam Output: The scan tool displays On/Off. The commanded state of the headlamp control terminal.

Max Air Inlet Dr Pos: The scan tool displays 0-255 Counts (0-5.00 Volts). The maximum travel range when driven to the stop during Recalibrate All Motors command.

Max Left Temp Dr Pos: The scan tool displays 0-255 Counts (0-5.00 Volts). The maximum travel range when driven to the stop during Recalibrate All Motors command.

Max Right Temp Dr Pos: The scan tool displays 0-255 Counts (0-5.00 Volts). The maximum travel range when driven to the stop during Recalibrate All Motors command.

Max. Htr./Def./A/C Dr.: The scan tool displays 0-255 Counts (0-5.00 Volts). The maximum travel range when driven to the stop during Recalibrate All Motors command.

Min Air Inlet Dr Pos: The scan tool displays 0-255 Counts (0-5.00 Volts). The minimum travel range when driven to the stop during Recalibrate All Motors command.

Min Left Temp Dr Pos: The scan tool displays 0-255 Counts (0-5.00 Volts). The minimum travel range when driven to the stop during Recalibrate All Motors command.

Min Right Temp Dr Pos: The scan tool displays 0-255 Counts (0-5.00 Volts). The minimum travel range when driven to the stop during Recalibrate All Motors command.

Min. Htr./Def./A/C Dr.: The scan tool displays 0-255 Counts (0-5.00 Volts). The minimum travel range when driven to the stop during Recalibrate All Motors command.

Outside Air Temp (HVAC Sensors): The scan tool displays -40 to 60°C (-40 to 140°F). The output of the outside air temperature sensor.

Outside Air Temp (Open/Short Data): The scan tool displays 0-255 Counts (0-5.00 Volts). The status of the sensor signal circuit is monitored. 0 counts (0 Volts) indicates a short to ground, 255 counts (5.00 Volts) indicates an open circuit.

Park Brake Relay - A: The scan tool displays On/Off.. Display indicates the state that the RIM is commanding the park brake relay.

Park Brake Relay - B: The scan tool displays On/Off.. Display indicates the state that the RIM is commanding the park brake relay.

Park Lamp: The scan tool displays On/Off. The status of the park lamp switch.

Park Lamp Relay Output: The scan tool displays On/Off. The commanded state of the park lamp relay.

Pass. Door Jamb Sw.: The scan tool displays On/Off. Display indicates the state of the right front door jamb switch. On indicates the door is open and Off indicates the door is closed.

Pass. Rear Heated Seats: The scan tool displays On/Off.. Display indicates the commanded state of the passenger rear heated seat.

Passenger AC Duct Temp: The scan tool displays 0-255 Counts (0-5.00 Volts). The status of the sensor signal circuit is monitored. 0 counts (0 Volts) indicates a short to ground, 255 counts (5.00 Volts) indicates an open circuit.

Passenger Htr. Duct Temp.: The scan tool displays 0-255 Counts (0-5.00 Volts). The status of the sensor signal circuit is monitored. 0 counts (0 Volts) indicates a short to ground, 255 counts (5.00 Volts) indicates an open circuit.

Passenger Program Number: The scan tool displays 0-255 counts. This value will vary, depending on the air delivery mode and the air discharge temperature selected by the passenger.

Passenger Solar: The scan tool displays 0-255 Counts (0-5.00 Volts). The status of the sensor signal circuit is monitored. 0 counts (0 Volts) indicates a short to ground, 255 counts (5.00 Volts) indicates an open circuit.

Position Lamp Relay: The scan tool displays On/Off. Display indicates the commanded state of the position lamp relay.

Power Mode Change: The scan tool displays when the vehicles power source has changed to ON, IGN, or RAP and CTD is activated.

Pressure Status: The scan tool displays Low, Normal or High. Normal must be displayed to allow A/C operation.

PROM ID: The scan tool displays the module PROM ID.

RAP Output: The scan tool displays On/Off. The scan tool displays the commanded state of the RAP relay.

Rear Blower Control: The scan tool displays On or Off. On indicates that the RIM has enabled the auxiliary blower motor relay.

Rear Courtesy Lamp Relay: The scan tool displays On/Off. Display indicates commanded state of the rear courtesy lamp relay.

Rear Defog Relay: The scan tool displays On/Off. The scan tool displays the commanded state of the rear defog relay.

Rear Fog Lamp Switch: The scan tool displays On/Off. The scan tool displays the state of the rear fog lamp switch.

Rear Fog Output: The scan tool displays On/Off. The scan tool displays the commanded state of the rear fog lamp relay.

Reverse Lockout Drive: Display indicates ON when the dash integration module (DIM) grounds the control circuit of the reverse lockout relay.

Reverse Relay Output: Right AC Duct Temp: The scan tool displays -40 to 150°C (-40 to 300°F). The output of the upper right air temperature sensor.

Right Htr. Duct Temp.: The scan tool displays -40 to 1 50°C (-40 to 300°F). The output of the lower right air temperature sensor.

Right Solar Sensor: The scan tool displays 0-255 counts. The solar load output of the sunload sensor assembly.

Right Temp Dr Actual: The scan tool displays 0-255 Counts (0-5.00 Volts). The signal output from the feedback potentiometer on the right air temperature actuator.

Right Temp. Dr. Commanded: The scan tool displays 0-255 Counts (0-5.00 Volts). The desired position of the right actuator.

Rt. Rear Door Jamb Sw.: The scan tool displays On/Off. The scan tool displays the right rear door jamb switch.

Run/Crank: The scan tool displays On/Off. The scan tool displays On when the Run/Crank circuit of the IPM receives a battery voltage signal from the ignition switch.

Selected Air Mode: The scan tool displays: Auto/Upper/Bi-Level/Floor/Defog/Defrost. This data indicates the discharge air mode selected. The positions are displayed as follows:
^ AUTO - The Instrument Panel Integration Module (IPM) controls all HVAC air flow.
^ UPPER - The air flows from the 4 upper vents.
^ BI-LEVEL - The air flows from the 4 panel vents and the 2 floor vents.
^ FLOOR - The air flows from the 2 floor vents.
^ DEFOG - The air flows from the defrost vent at the top of the instrument panel and the 2 floor vents.
^ DEFROST - The air flows from the defrost vent at the top of the instrument panel.

Steering Wheel Controls AID: The scan tool displays 0 - 255 counts. The scan tool displays signal in counts as received from the steering wheel controls.

System Program Number: The scan tool displays 0 - 255 counts. The display indicates the commanded temperature setting.

TCS Switch: The scan tool displays On/Off. Display indicates the status of the traction control switch.

Temperature Status: The scan tool displays Hot or OK. Hot is displayed when engine coolant temperature rises above 121°C (250°F). OK must be displayed to allow A/C operation.

Theft Lighting: The scan tool displays On/Off. The scan tool displays the current state of the exterior theft lighting.

Trunk Ajar Switch: The scan tool displays On/Off. The scan tool displays the current state of the trunk ajar switch.

Trunk Ajar Switch (Inputs): The scan tool displays Open/Closed. The scan tool displays the current state of the trunk ajar switch.

Trunk Ajar Switch (Theft Information): The scan tool displays On/Off. The scan tool displays the current state of the trunk ajar switch.

Trunk Disarm Switch: The scan tool displays the current state of the trunk disarm switch.

Trunk Release Output: The scan tool displays On/Off. Display indicates the commanded state of the trunk release relay.

Trunk Release Switch: The scan tool displays the current state of the trunk release switch.

Twilight Delay Pot: The scan tool displays 0-5 volts. The twilight delay switch input signal.

Twilight Photocell: Displays 0-5 volts. The ambient light sensor input signal.

Vehicle Speed: The scan tool displays 0-24g km/h/0-155 mph. This value is used to calculate the outside air temperature when the vehicle is moving.

Year Module Built: The scan tool displays the module year built.