GM Service Manual Online
For 1990-2009 cars only
Table 1: DIM Scan Tool Output Controls
Table 2: PCM Scan Tool Output Controls

DIM Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selection(s)

Description

Automatic/Manual HVAC Options

Set Options

The scan tool displays: Manual HVAC, Automatic HVAC w/ Dual Zone and Automatic HVAC w/o Dual Zone. This selection allows you to change the control panel type in the IPM.

PCM Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selection(s)

Description

A/C Relay

Engine Output Controls

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