GM Service Manual Online
For 1990-2009 cars only
Table 1: Dash Integration Module (DIM)
Table 2: Engine Control Module (ECM) - 2.8 L (LPI)/3.6L (LY7)
Table 3: Instrument Panel Cluster (IPC)

The scan tool data lists contain all the instrument panel, gage, and console related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. The data list column indicates the location of the parameter within the scan tool menu selections.

Use the scan tool data lists as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with Diagnostic System Check - Vehicle .

Use the scan tool data lists only after the following is determined:

    • There is no published DTC procedure nor published symptom procedure for the customer concern.
    • The DTC or symptom procedure indicated by the diagnostic system check does not resolve the customer concern.

The typical data values are obtained from a properly operating vehicle under the conditions specified in the first row of the scan tool data list table. Comparison of the parameter values from the suspect vehicle with the typical data values may reveal the source of the customer concern.

Dash Integration Module (DIM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF

Key in Ignition

Inputs

Yes/No

Yes

Engine Control Module (ECM) - 2.8 L (LPI)/3.6L (LY7)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Engine Idling/Normal Operating Temperature

Cruise Control Active

IPC Data

Yes/No

No

Current Gear

IPC Data

PRNDL

Varies

ECT Sensor

Engine Data 1

Engine Data 2

EVAP Data

IPC Data

Celsius (Fahrenheit)

85-105°C (185-220°F)

Engine Oil Life Remaining

IPC Data

%

Varies

Engine Oil Level Switch

IPC Data

OK/Low

OK

Engine Oil Pressure Sensor

IPC Data

OK/Low

OK

Engine Oil Pressure Sensor

IPC Data

kPa (psi)

Varies w/oil pressure

Engine Oil Pressure Sensor

IPC Data

Volts

Varies w/oil pressure

Engine Speed

Engine Data 1

Engine Data 3

EVAP Data

IPC Data

RPM

±100 RPM from Desired Idle Speed

Fuel Level Sensor Left

EVAP Data

IPC Data

Volts

Varies w/fuel level

Fuel Level Sensor Right

EVAP Data

IPC Data

Volts

Varies w/fuel level

Fuel Tank Level Remaining

Engine Data 1

EVAP Data

IPC Data

Liters/Gallons

Varies w/fuel level

Fuel Tank Level Remaining

EVAP Data

IPC Data

%

Varies w/fuel level

Ignition 0 Signal

IPC Data

Yes/No

Yes

Ignition 1 Signal

IPC Data

Yes/No

Yes

MIL Circuit Status

IPC Data

OK/Low

OK

MIL Command

IPC Data

Yes/No

No

Reduced Engine Power

IPC Data

Yes/No

No

Vehicle Security Status

IPC Data

On/Off

Off

Vehicle Speed Sensor

Engine Data 1

Engine Data 2

EVAP Data 3

IPC Data

kilometers per hour (miles per hour)

0 km/h (0 mph)

Instrument Panel Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Park Brake Unapplied

ABS Input

Inputs

On/Off

Off

Battery Volts

Data

Volts

9-16 V

Brake Fluid Switch

Data

Volts

Varies w/fluid level

DIC Down switch (CTS-V)

Inputs

On/Off

Off

DIC Switch Input (CTS-V)

Data

Volts

Varies

DIC Information Switch (CTS-V)

Inputs

On/Off

Off

DIC Up switch (CTS-V)

Inputs

On/Off

Off

Engine Speed

Data

RPM

0 RPM

Ignition 1

Inputs

On/Off

On

Ignition Counter

Data

Cycles

Varies

Left Turn Signal

Inputs

On/Off

Off

Park Brake Switch

Inputs

On/Off

Off

Right Turn Signal

Inputs

On/Off

Off

Tap Up/Down Switch

Inputs

Up/Down

Down

Vehicle Speed

Data

kilometers per hour (miles per hour)

0 km/h (0 mph)