GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module (BCM)
Table 2: Instrument Panel Cluster (IPC)
Table 3: Powertrain Control Module (PCM) - 2.2L
Table 4: Engine Control Module (ECM) - 3.0L

The scan tool data lists contain all the instrument panel, gages, 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 - Instrument Cluster or Diagnostic System Check - Audible Warnings .

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.

Body Control Module (BCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/High Beams Off/Doors Closed/Trunk Closed/Park Brake Unapplied

Coolant Gauge Position

ABS/TCS Data

%

Varies

Displayed Odometer

ABS/TCS Data

kilometers (miles)

Varies

Driver Door Switch

Switch Inputs

Low/High

High

Fuel Gauge Position

ABS/TCS Data

%

Varies

Key in Ignition

Switch Inputs

Yes/No

Yes

Low Brake Fluid

Switch Inputs

Yes/No

No

Low Coolant

Switch Inputs

Yes/No

No

Park Brake Switch

Switch Inputs

On/Off

Off

Parklamp Switch

Switch Inputs

On/Off

Off

Pass Door Switches

Switch Inputs

Low/High

High

Instrument Panel Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Seat Belt Buckled/High Beams Off/Park Brake Unapplied

Module Type

ID Information

Base/Uplevel

Varies

Module Type-Carline

ID Information

J

J

Module Type-Export

ID Information

Yes/No

Varies

Part Number

ID Information

Numeric

Varies

Software Date -- Day

ID Information

Numeric

Varies

Software Date -- Month

ID Information

Numeric

Varies

Software Date -- Year

ID Information

Numeric

Varies

Software ID

ID Information

Numeric

Varies

Powertrain Control Module (PCM) - 2.2L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Engine Idling/Normal Operating Temperature

ECT

Inputs

Outputs

Fuel and Emissions

Ignition

Celsius (Fahrenheit)

85-105°C (185-220°F)

Engine Oil Life Remaining

Inputs

%

0-100%

varies

Engine Speed

Inputs

Outputs

Fuel and Emissions

Ignition

RPM

±100 RPM from Desired Idle Speed

Fuel Level

Inputs

Fuel and Emissions

Ignition

%

Varies

Low Oil Pressure

Inputs

Yes/No

No

Vehicle Speed

Inputs

Outputs

Fuel and Emissions

Ignition

km/h (mph)

0 km/h (0 mph)

Engine Control Module (ECM) - 3.0L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Engine Idling/Normal Operating Temperature

ECT

Fuel and Emissions

General Info -- Inputs

General Info -- Outputs

Ignition

Celsius (Fahrenheit)

85-105°C (185-220°F)

Engine Oil Life Left

General Info -- Inputs

%

0-100%

varies

Engine Speed

Fuel and Emissions

General Info -- Inputs

General Info -- Outputs

Ignition

RPM

±100 RPM from Desired Idle Speed

Fuel Level

General Info -- Inputs

Liters (Gallons)

Varies

Fuel Level

Fuel and Emissions

General Info -- Inputs

Ignition

Volts

Varies

Low Oil Pressure

General Info -- Inputs

Yes/No

No

Vehicle Speed

Fuel and Emissions

General Info -- Inputs

General Info -- Outputs

Ignition

km/h (mph)

0 km/h (0 mph)