GM Service Manual Online
For 1990-2009 cars only
Table 1: Audio Amplifier
Table 2: Body Control Module (BCM)
Table 3: Chime Module
Table 4: Instrument Panel Cluster (IPC)
Table 5: Driver Door Module (DDM)/Passenger Door Module (PDM)
Table 6: Powertrain Control Module (PCM)
Table 7: Radio

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 , Diagnostic System Check - Driver Information Systems 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.

Audio Amplifier

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition in RUN, Radio ON

Balance

Data

Value

-50 to +50

Battery Voltage

Data

Volts

0-18V

Chime Volume

Data

Percent

0-100%

Fade

Data

Value

-50 to +50

Volume

Data

Percent

0-100%

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/Seatbelt Buckled

Battery Voltage

Data

Volts

0-18V

Cargo Door Ajar Switch

Inputs

Open/Closed

Closed

Cargo Lamp Switch

Inputs

On/Off

Off

Courtesy Lamp Switch

Inputs

Active/Inactive

Inactive

Driver Door Ajar Switch w/o DDM

Inputs

On/Off

Off

Hazard Switch Signal

Outputs

On/Off

Off

Headlamp Switch

Inputs

Active/Inactive

Inactive

Headlamps On Indicator

Outputs

On/Off

Off

High Beam Relay

Outputs

On/Off

Off

High Beam Switch

Inputs

On/Off

Off

Hood Ajar Switch

Inputs

Active/Inactive

Inactive

Key In Ignition

Inputs

Yes/No

Yes

Left Rear Cargo Door Ajar Switch

Inputs

On/Off

Off

Low Beam Output

Outputs

On/Off

Off

Park Brake Switch

Inputs

Set/Released

Released

Park Lamp Relay

Outputs

On/Off

Off

Parklamp Switch

Inputs

Active/Inactive

Inactive

Passenger Door Ajar Switch w/o PDM

Inputs

On/Off

Off

RAP Relay

Outputs

On/Off

On

Right Rear Door Ajar Switch

Inputs

On/Off

Off

Chime Module

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/Seatbelt Buckled

Ign. Since Current DTC

Data

Cycles

0-255

Chime

Data

On/Off

Off

Chime Duration

Data

Cycles

Varies

Chime Type

Data

Fast/Medium/Slow

Varies

Chime Frequency

Data

Hz

Varies

Indicator Type

Data

On/Off

Varies

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/Park Lamps ON

8-Digit GM Part Number

Module Information 1

  

ABS Lamp

Input/Output

On/Off

Off

Air Bag Lamp

Input/Output

On/Off

Off

Battery

Input/Output

On/Off

On

Battery Voltage

Data 1

Volts

9.0-16 V (Varies)

Brake Assist (if equipped)

Input/Output Data 1

Active/Inactive

Inactive

Brake Lamp

Input/Output

On/Off

Off

Cargo Lamp On

Input/Output

On/Off

Off

Cruise Control

Input/Output

On/Off

Off

DIC Fuel Info

Input/Output

On/Off

Off

DIC Personalization

Input/Output

On/Off

Off

DIC Select

Input/Output

On/Off

Off

DIC Trip Info.

Input/Output

On/Off

Off

Display Dimming

Input/Output

Active/Inactive

Inactive

Display Units

Input/Output

Metric/English

English

Displayed Coolant Temp

Data 1

Celsius (Fahrenheit)

32-127°C (89-260°F) (Varies)

Displayed Fuel Level

Data 1

Percent

0-100% (Varies)

Displayed Odometer

Data 2

Kilometers (Miles)

Varies with the mileage of vehicle

Displayed Oil Pressure

Data 1

kPa (psi)

0 kPa (0 psi)

Displayed Trans Oil Temp

Data 1

Celsius (Fahrenheit)

29-157°C (84-315°F) (Varies)

Engine Speed

Data 1

RPM

0 RPM

Fasten Seat Belt

Input/Output

On/Off

Off

High Beam Lamp

Inputs

On/Off

Off

Hour Meter

Data 1

Hours

Varies

Ignition 1

Data 1

Volts

9.0-16 V (Varies)

Ign. Since Current DTC

Data 1

Cycles

0-255

Julian Date of Build

Module Information 1

Numeric

Varies

Language

Input/Output

English/French/Spanish/German/Arabic

English

Left Turn Input

Input/Output

Open/Closed

Open

Low Fuel Lamp

Input/Output

On/Off

Off

Low Washer Fluid

Input/Output

On/Off

Off

Monitored Coolant Temp

Data 1

Celsius (Fahrenheit)

82-93°C (180-200°F)

Monitored Fuel Level

Data 1

Percent

0-100% (Varies)

Monitored Oil Pressure

Data 1

kPa (psi)

0 kPa (0 psi)

Over Drive Defeat

Input/Output

Active/Inactive

Inactive

PRNDL State

Inputs

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

Park

Right Turn Input

Input/Output

Open/Closed

Open

Security Lamp

Input/Output

On/Off

Off

Service 4WD

Input/Output

On/Off

Off

Software Part Number

Module Information 2

Numeric

Varies

Software Revision Number

Module Information 2

Numeric

Varies

Tow/Haul

Input/Output

On/Off

Off

Trip Odometer A

Data 2

Miles (Kilometers)

Varies

Trip Odometer B

Data 2

Miles (Kilometers)

Varies

Trip Reset Switch

Inputs

Active/Inactive

Inactive

Upshift Lamp

Input/Output

On/Off

Off

Vehicle Speed

Data 1

Miles (Kilometers)

0 km/h (0 mph)

Year Model Built

Module Information 1

Numeric

Varies

Driver Door Module (DDM)/Passenger Door Module (PDM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF/Vehicle in PARK/All doors closed

Battery 1 (Low Current)

Data

Volts

12.8 V

Battery 2 (High Current)

Data

Volts

12.8 V

Door Ajar Switch

Inputs

On/Off

Off

Powertrain Control Module (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Engine Idling/Normal Operating Temperature

Battery Voltage

ATC Data Display

Engine Data 1

Volts

0-18V

ECT Sensor

Engine Data 1

Engine Data 2

Enhanced EVAP Data

Fuel System

Fuel Trim Data

HO2S Data

Misfire Data

Celsius (Fahrenheit)

85-105°C (185-220°F) (Varies)

Coolant Level Switch

Engine Data 2

OK/Low

OK

Engine Oil Level Switch

Engine Data 1

Engine Data 2

OK/Low

OK

Engine Oil Life Remaining

Engine Data 1

Engine Data 2

Percent

0-100%

(Varies)

Engine Oil Pressure Sensor

Engine Data 2

Volts

0-5 Volts (Varies)

Engine Speed

Cruise Control Data

Engine Data 1

Engine Data 2

Enhanced EVAP Data

Fuel System

Fuel Trim Data

HO2S Data

TAC Data

RPM

±100 RPM from Desired Idle Speed

Fuel Level Sensor

Engine Data 1

Enhanced EVAP Data

Fuel System

Volts

0-5 Volts (Varies)

Fuel Level Sensor Rear Tank (If Equipped)

Engine Data 1

Enhanced EVAP Data

Volts

0-5 Volts (Varies)

Fuel Tank Level Remaining

Enhanced EVAP Data

Gallons (Liters)

Varies

Fuel Tank Level Remaining

Enhanced EVAP Data

Percent

0-100% (Varies)

Fuel Tank Rated Capacity

Enhanced EVAP Data

Gallons (Liters)

Varies

Fuel Temperature Sensor

Engine Data 1

Celsius (Fahrenheit)

10-90°C (50-194°F) (Varies)

Ignition 1 Signal

Cruise Control Data

Engine Data 1

Engine Data 2

Enhanced EVAP Data

Fuel Trim Data

TAC Data

Volts

9-16 V (Varies)

Low Coolant Level

Engine Data 1

Yes/No

No

Low Oil Lamp Command

Engine Data 2

On/Off

Off

MIL (Malfunction Indicator Lamp) Command

Engine Data 1

Engine Data 2

On/Off

Off

Reduced Engine Power

Engine Data 1

Active/Inactive

Inactive

Trans. Fluid Temp

Trans Data

Celsius (Fahrenheit)

85-105°C (185-220°F) (Varies)

Vehicle Speed Sensor

Cruise Control Data

Engine Data 1

Engine Data 2

Enhanced EVAP Data

Fuel System

Fuel Trim Data

HO2S Data

Misfire Data

TAC Data

Miles per hour (Kilometers per hour)

0 km/h (0 mph)

Wait To Start

Engine Data 1

On/Off

Off

Water In Fuel

Engine Data 1

On/Off

Off

Radio

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition in RUN, Radio ON

Balance

Data

Value

-50 to +50

Battery Voltage

Data

Volts

0-18V

Chime Type

Outputs

None/Headlamp/Turn Signal/Key in Ignition/Seat Belt/ Park Brake

None

Fade

Data

Value

-50 to +50

Personalization

Inputs

Fuel/Trip/Re/Set/Fuel Econ

Varies

Volume

Data

Percent

0-100%