GM Service Manual Online
For 1990-2009 cars only
Table 1: DIM
Table 2: IPM
Table 3: PCM

DIM

Scan Tool Output Control

Additional Menu Selection(s)

Description

A/C Orifice Relay

--

The scan tool displays Commanded State: None, Off or On. This function allows you to command the A/C orifice solenoid to its maximum (On) or minimum (Off) diameters.

IPM

Scan Tool Output Control

Additional Menu Selection(s)

Description

Afterblow

Set Options

Allows the blower motor to run after the ignition is turned OFF.

Air Inlet Door Position

HVAC Motors

The scan tool displays Outside or Recirc selections. The selection drives the actuator to its min or max stops.

Blower Motor

Miscellaneous

The scan tool displays Commanded State: None, Off or On. This function allows you to command the blower motor to its maximum (100%) or minimum (0%) speeds.

HTR/DEF/AC Door Position

HVAC Motors

The scan tool displays Defrost or Panel selections. The selection drives the actuator to its min or max stops.

Instant OAT Update

Miscellaneous

The scan tool displays Commanded State: None, Off or On. Updates the IPM outside air temperature input to the current raw value.

Left Temp Door Position

HVAC Motors

The scan tool displays Hot or Cold selections. The selection drives the actuator to its min or max stops.

Recalibrate All Motors

Miscellaneous

The scan tool displays Commanded State: None or On. This function commands the actuators to drive to the stops fully opened and fully closed and relearn these endpoints.

Relearn Control Panel Type

Miscellaneous

The scan tool displays Commanded State: None or On. This function has the IPM relearn a new heater and A/C control.

Right Temp Door Position

HVAC Motors

The scan tool displays Hot or Cold selections. The selection drives the actuator to its min or max stops.

Temperature Offset

Set Options

Allows for variation between driver set temperature and target (desired) system discharge temperature.

PCM

Scan Tool Output Control

Additional Menu Selection(s)

Description

A/C Relay

--

The scan tool displays ON or OFF selections. This command allows you to turn the A/C relay ON or OFF.

A/C Relay Command

--

The scan tool displays ON or OFF selections. ON is displayed when the PCM has energized the A/C clutch relay.