GM Service Manual Online
For 1990-2009 cars only
Table 1: IPC Scan Tool Output Controls
Table 2: IPM Scan Tool Output Controls
Table 3: PCM Scan Tool Output Controls
Table 4: Rear Integration Module (RIM) Scan Tool Output Controls

IPC Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selections

Description

Displays Test

Output Control

The scan tool displays Commanded State: None, Off or On. When you select ON, all segments of the HVAC control module (IPM), IPC, and radio should illuminate for 5 seconds, and all gauges should sweep through their full range of motion. When you select OFF, all segments of the IPM, IPC, and radio should be blank, and all gauges should be at zero for 5 seconds.

IPM Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selections

Description

A/C Request

Miscellaneous Test

The scan tool displays Commanded State: None, Off, or On. This function allows you to turn the A/C request ON or OFF for 5 seconds.

Air Inlet Door Position

HVAC Motors

The scan tool displays Outside or Recirc selections. This function drives the actuator to its minimum (ambient air) or maximum (recirculate) stops for 20 seconds.

Blower Motor

Miscellaneous Test

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 for 5 seconds.

Htr./Def./A/C Door Position

HVAC Motors

The scan tool displays Upper or Defrost positions. This function drives the actuator to its minimum (defrost) or maximum (upper) positions for 20 seconds.

Instant OAT Update

Miscellaneous Test

The scan tool displays Commanded State: None, Off, or On. This function updates the IPM ambient air temperature input to the current raw value.

IPM Recalibration

Miscellaneous Test

The scan tool displays: Commanded State: None or On. Selecting ON will update the IPM with the latest software calibration.

Left Temp Door Position

HVAC Motors

The scan tool displays Hot or Cold selections. The selection drives the actuator to its minimum (cold) or maximum (hot) positions for 20 seconds.

Recalibrate Motors

Miscellaneous Test

The scan tool displays Commanded State: None or On. This functions commands all actuators to their fully opened and fully closed positions, and relearns these endpoints.

Right Temp Door Position

HVAC Motors

The scan tool displays Hot or Cold selections. The selection drives the actuator to its minimum (hot) or maximum (cold) positions for 20 seconds.

PCM Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selections

Description

A/C Relay

Engine Output Controls

The scan tool displays ON or OFF selections. This command allows you to turn the A/C compressor relay ON or OFF. When commanded OFF, the relay should remain OFF until commanded ON. When commanded ON, the relay should remain ON for 5 seconds. When the A/C compressor relay is commanded ON, the A/C compressor clutch should be engaged.

Rear Integration Module (RIM) Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selections

Description

Rear Blower Power Relay

Output Control

The scan tool displays Commanded State: None, Off or On. This function allows you to command the auxiliary blower motor relay ON or OFF for 5 seconds.