GM Service Manual Online
For 1990-2009 cars only
Table 1: BCM Scan Tool Data List
Table 2: IPC Scan Tool Data List
Table 3: PCM Scan Tool Data List

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 the 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.

BCM Scan Tool Data List

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

Battery Voltage

Data

Volts

Varies

Chime

Outputs

On/Off

Off

Driver Door Jamb Switch

Input 1

Open/Closed

Closed

Ignition 1

Input 1

Active/Inactive

Active

Ignition 3

Input 1

Active/Inactive

Active

Key in Ignition

Input 1

Active/Inactive

Active

Left Turn Signal

Inputs 2

On/Off

Off

Park Brake Switch

Inputs 1

On/Off

Off

Park Lamps

Input 2

On/Off

Off

Right Turn Signal

Inputs 2

On/Off

Off

IPC Scan Tool Data List

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

ABS Lamp

Outputs

On/Off

Off

Air Bag Lamp

Outputs

On/Off

Off

Battery

Outputs

On/Off

On

Battery Voltage

Data

Volts

Varies

Brake Lamp

Outputs

On/Off

Off

Dimming

Inputs

Active/Inactive

Inactive

Displayed Odometer

Data

Kilometers (Miles)

Varies with the mileage of vehicle

Displayed Trip Odometer

Data

Kilometers (Miles)

Varies with the mileage of vehicle

Fasten Seat Belts

Outputs

On/Off

Off

Hi Beam Lamp

Outputs

On/Off

Off

Low Fuel Lamp

Outputs

On/Off

Off

Module Part Number

Module Information

Numeric

Varies

Monitored Coolant Temp

Data

Celsius (Fahrenheit)

82-93°C (180-200°F)

Monitored Fuel Level

Data

Percent

0-100%

Overspeed Lamp

Outputs

On/Off

Off

Park Switch

Inputs

Open/Closed

Closed

PRNDL State

Inputs

Park/ Reverse/ Neutral/ First/ Second/ Third/ Drive

Park

Security Lamp

Outputs

On/Off/Flashing

Off

Service AWD

Outputs

On/Off

Off

Tow/Haul

Outputs

Engine Data 2

Off

Trip Reset Switch

Inputs

Active/Inactive

Inactive

Vehicle Speed

Data

km/h (mph)

0 km/h (0 mph)

PCM Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Engine Idling/Normal Operating Temperature

ECT Sensor

Engine Data 1

Engine Data 2

Fuel Trim Data

Enhanced EVAP Data

Misfire Data

Celsius (Fahrenheit)

85-105°C (185-220°F)

Engine Oil Life Remaining

Engine Data 2

Percent

0-100% (Varies)

Engine Oil Pressure Sensor

Engine Data 2

Volts

0-5 Volts (Varies)

Engine Speed

Engine Data 1

Engine Data 2

Fuel Trim Data

Misfire Data

Enhanced EVAP

RPM

+- 100 RPM from desired idle speed

Fuel Level Sensor

Engine Data 1

Enhanced EVAP Data

Voltage

0-5 V

MIL Command

Engine Data 2

On/Off

Off

Vehicle Speed Sensor

Engine Data 1

Engine Data 2

Fuel Trim Data

Enhanced EVAP Data

Misfire Data

Miles per hour (Kilometers per hour)

0 mph (0 km/h)