GM Service Manual Online
For 1990-2009 cars only
Table 1: Hybrid Control Module (HCM)
Table 2: Instrument Cluster
Table 3: Starter Generator Control Module (SGCM)

Hybrid Control Module (HCM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Auxiliary Coolant Pump Relay

HPCM

Commands the auxiliary coolant pump relay ON and OFF.

Instrument Cluster

Scan Tool Output Control

Additional Menu Selection(s)

Description

Special Functions

Lamp Test

Command the instrument cluster to illuminate all lamps in the cluster.

Special Functions

IPC Gages

Command the instrument cluster to sweep all gages.

Special Functions

Segment Tests

Command the instrument cluster message center to display all segments.

Starter Generator Control Module (SGCM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

SGCM Fan Speed

SGCM

Commands the SGCM coolant fan ON and OFF. 0% for OFF and 100% for ON.

SGCM Pump Speed

SGCM

Commands the SGCM coolant pump ON and OFF.