Scan Tool Data Definitions

DDM - Data Display - Pass. HVAC Switch: The scan tool displays 0 to 255 counts. This indicates the passenger climate control selection.

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

DIM - A/C Information - 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.

DIM - A/C Information - A/C Orifice Relay: The scan tool displays Active or Inactive. Active is displayed when the orifice tube relay is energized by the DIM increasing the orifice diameter and lowering A/C high side pressure.

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

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

DIM - A/C Information - Control Head (Desired): The scan tool displays A/C On or A/C Off. A/C On is displayed when the IPM is requesting A/C system operation.

DIM - A/C Information - Evaporator Temp.: The scan tool displays -40 to +215°C (-40 to +420°F). The output of the A/C low side thermistor.

DIM - A/C Information - Evaporator Temp Status: The scan tool displays OK or Cold. Cold is displayed when evaporator temperature drops below 5°C (41°F).

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

DIM - A/C Information - 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.

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

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

IPM - HVAC Sensors - Left AC Duct Temp: The scan tool displays -40 to +150°C (-40 to +300°F). The output of the LH A/C duct temperature sensor.

IPM - HVAC Sensors - Left HTR Duct Temp: The scan tool displays -40 to +150°C (-40 to +300°F). The output of the LH HTR duct temperature sensor.

IPM - HVAC Sensors - Right AC Duct Temp: The scan tool displays -40 to +150°C (-40 to +300°F). The output of the RH A/C duct temperature sensor.

IPM - HVAC Sensors - Right HTR Duct Temp: The scan tool displays -40 to +150°C (-40 to +300°F). The output of the RH HTR duct temperature sensor.

IPM - HVAC Sensors - Left Duct Temp Desired: The scan tool displays -18 to +120°C (0 to +250°F). The target LH A/C duct temperature that the HVAC system is trying to achieve.

IPM - HVAC Sensors - Right Duct Temp Desired: The scan tool displays -18 to +120°C (0 to +250°F). The target RH A/C duct temperature that the HVAC system is trying to achieve.

IPM - HVAC Sensors - Left Solar: The scan tool displays 0 to 50 counts. The solar load output of the LH sunload sensor and ambient light sensor.

IPM - HVAC Sensor - Right Solar: The scan tool displays 0 to 50 counts. The solar load output of the RH sunload sensor and ambient light sensor.

IPM - HVAC System Data - Commanded Blower: The scan tool displays 0 to 100%.

IPM - HVAC System Data - Selected Air Mode: The scan tool displays AUTO, Upper, Defog, Bi-Level, Heater or Defrost. The current operating mode of the HVAC system.

IPM - HVAC System Data - A/C Requested: The scan tool displays Yes or No. The message sent out on class 2 to the DIM when A/C is requested.

IPM - HVAC System Data - 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 link.

IPM - HVAC Door Positions - Left Temp. Dr. Commanded: The scan tool displays 0 to 255 counts (0 to 5 volts). The desired position of the actuator.

IPM - HVAC Door Positions - Left Temp Dr Actual: The scan tool displays 0 to 255 counts (0 to 5 volts). The signal output from the feedback pot on the actuator.

IPM - HVAC Door Positions - Right Temp. Dr. Commanded: The scan tool displays 0 to 255 counts (0 to 5 volts). The desired position of the actuator.

IPM - HVAC Door Positions - Right Temp Dr Actual: The scan tool displays 0 to 255 counts (0 to 5 volts). The signal output from the feedback pot on the actuator.

IPM - HVAC Door Positions - HTR/DEF/AC Dr Commanded: The scan tool displays 0 to 255 counts (0 to 5 volts). The desired position of the actuator.

IPM - HVAC Door Positions - HTR/DEF/AC Dr Actual: The scan tool displays 0 to 255 counts (0 to 5 volts). The signal output from the feedback pot on the actuator.

IPM - HVAC Door Positions - Air Inlet Dr Commanded: The scan tool displays 0 to 255 counts (0 to 5 volts). The desired position of the actuator.

IPM - HVAC Door Positions - Air inlet Dr Actual: The scar tool displays 0 to 255 counts (0 to 5 volts). The signal output from the feedback pot on the actuator.

IPM - HVAC Door Calibrations - Min Left Temp Dr Pos: The scan tool displays 0 to 255 counts (0 to 5 volts). The minimum travel range when driven to the stop during Recalibrate All Motors command.

IPM - HVAC Door Calibrations - Max Left Temp Dr Pos: The scan tool displays 0 to 255 counts (0 to 5 volts). The maximum travel range when driven to the stop during Recalibrate All Motors command.

IPM - HVAC Door Calibrations - Min Right Temp Dr Pos: The scan tool displays 0 to 255 counts (0 to 5 volts). The minimum travel range when driven to the stop during Recalibrate All Motors command.

IPM - HVAC Door Calibrations - Max Right Temp Dr Pos: The scan tool displays 0 to 255 counts (0 to 5 volts). The maximum travel range when driven to the stop during Recalibrate All Motors command.

IPM - HVAC Door Calibrations - Min HTR/DEF/AC Dr Pos: The scan tool displays 0 to 255 counts (0 to 5 volts). The minimum travel range when driven to the stop during Recalibrate All Motors command.

IPM - HVAC Door Calibrations - Max HTR/DEF/AC Dr Pos: The scan tool displays 0 to 255 counts (0 to 5 volts). The maximum travel range when driven to the stop during Recalibrate All Motors command.

IPM - HVAC Door Calibrations - Min Air Inlet Dr Pos: The scan tool displays 0 to 255 counts (0 to 5 volts). The minimum travel range when driven to the stop during Recalibrate All Motors command.

IPM - HVAC Door Calibrations - Max Air Inlet Dr Pos: The scan tool displays 0 to 255 counts (0 to 5 volts). The maximum travel range when driven to the stop during Recalibrate All Motors command.

IPM - Open/Short Data - Outside Air Temp: The scan tool displays 0 to 255 counts (0 to 5 volts). The status of the sensor signal circuit is monitored. 0 counts indicates a short to ground, 255 counts indicates an open circuit.

IPM - Open/Short Data - Inside Air Temp: The scan tool displays 0 to 255 counts (0 to 5 volts). The status of the sensor signal circuit is monitored. 0 counts indicates a short to ground, 255 counts indicates an open circuit.

IPM - Open/Short Data - Left AC Duct Temp: The scan tool displays 0 to 255 counts (0 to 5 volts). The status of the sensor signal circuit is monitored. 0 counts indicates a short to ground, 255 counts indicates an open circuit.

IPM - Open/Short Data - Left HTR Duct Temp: The scan tool displays 0 to 255 counts (0 to 5 volts). The status of the sensor signal circuit is monitored. 0 counts indicates a short to ground, 255 counts indicates an open circuit.

IPM - Open/Short Data - Right AC Duct Temp: The scan tool displays 0 to 255 counts (0 to 5 volts). The status of the sensor signal circuit is monitored. 0 counts indicates a short to ground, 255 counts indicates an open circuit.

IPM - Open/Short Data - Right HTR Duct Temp: The scan tool displays 0 to 255 counts (0 to 5 volts). The status of the sensor signal circuit is monitored. 0 counts indicates a short to ground, 255 counts indicates an open circuit.

IPM - Open/Short Data - Left Solar Sensor: The scan tool displays 0 to 50 counts. The status of the sensor signal circuit is monitored. 0 counts indicates a short to ground, 255 counts indicates an open circuit.

IPM - Open/Short Data - Right Solar Sensor: The scan tool displays 0 to 50 counts. The status of the sensor signal circuit is monitored. 0 counts indicates a short to ground, 255 counts indicates an open circuit.

PCM - Engine Data 1 W/L47 (V8) - ECT: The scan tool displays -40 to +215°C (-40 to +420°F). The output of the engine coolant temperature sensor.

PCM - Engine Data 2 W/L47 (V8) - ECT: The scan tool displays -40 to +215°C (-40 to +420°F). The output of the engine coolant temperature sensor.

PCM - Engine Data 2 W/L47 (V8) - A/C Relay Command: The scan tool displays On or Off. On is displayed when the PCM has energized the A/C clutch relay.

PCM - Engine Data 3 W/L47 (V8) - ECT: The scan tool displays -40 to +215°C (-40 to +420°F). The output of the engine coolant temperature sensor.

PCM - Engine Data 1 W/L47 (V8) - A/C Relay Command: The scan tool displays ON or OFF. ON is displayed when the PCM has energized the A/C clutch relay.

PCM - Engine Data 2 W/L47 (V8) - A/C High Side Pressure: The scan tool displays 0 to 4000 kPa (430 psi). The output of the A/C pressure sensor.

PCM - Engine Data 3 W/L47 (V8) - A/C Relay Command: The scan tool displays ON or OFF. ON is displayed when the PCM has energized the A/C clutch relay.

PCM - Engine Output Controls W/L47 (V8) - A/C Relay: The scan tool displays OK or Fault. Fault is displayed when an open or short is detected in the A/C CLU relay ground circuit.