GM Service Manual Online
For 1990-2009 cars only

Dash Integration Module (DIM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Battery Voltage

Data

Volts

12.6 Volts

Instrument Panel Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Battery Voltage

Data

Volts

12.6 Volts

Powertrain Control Module (LX5)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Crank Request Signal

Engine Data 2

Yes/No

No

GEN F-Terminal Signal

Engine Data 1

Percentage

0%

GEN L-Terminal Signal Command

Engine Data 2

Output/No Output

No Output

Ignition 1 Signal

Engine Data 1, Engine Data 2

Volts

13.0 Volts

Starter Enabled Relay Circuit Status

Output Driver Data

OK/Fault

OK

Starter Relay Command

Engine Data 2

Yes/No

No

Powertrain Control Module (L47)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Crank Request Signal

Engine Data 3

Yes/No

No

GEN F-Terminal Signal

Engine Data 2

Percentage

0%

GEN L-Terminal Signal Command

Engine Data 2

Output/No Output

No Output

Ignition 1 Signal

Engine Data 1, Engine Data 2, Engine Data 3

Volts

13.0 Volts

Starter Relay Command

Engine Data 3

Yes/No

No

Transmission Control Module (TCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON / Transmission in Park

IMS

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

Park