GM Service Manual Online
For 1990-2009 cars only
Table 1: Dash Integration Module
Table 2: Rear Integration Module
Table 3: Powertrain Control Module (PCM)

Dash Integration Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, with the engine OFF. Transmission shift lever in the PARK position.

Ignition 1

Inputs

ON/OFF

ON

Ignition 3

Inputs

ON/OFF

ON

Reverse Lockout Drive

Outputs

ON/OFF

ON

Rear Integration Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, with the engine OFF. Transmission shift lever in the PARK position.

Ign.Crank/Run

Inputs

ON/OFF

ON

Brake to Shift Output

Outputs

ON/OFF

ON

Powertrain Control Module (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, with the engine OFF. Transmission shift lever in the PARK position.

Ignition Voltage

Transmission Data

Volts

0-25v

Current Gear

Transmission Data

--

--

IMS A/B/C/P

Transmission Data

Park, Park/Reverse, Reverse, Reverse/Neutral, Neutral, Neutral/Drive 4, Drive 4, Drive 4/Drive 3, Drive 3, Drive 3/Drive 2, Drive 2, Drive 2/Drive 1, Drive 1, Invalid, Open

--