GM Service Manual Online
For 1990-2009 cars only
Table 1: IPC Scan Tool Data List
Table 2: 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 order, as they appear on the scan tool. 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 for the Instrument Panel Cluster or Symptoms - Instrument Panel, Gages and Console for 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.

IPC Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF, Lights Off, Hatch Closed, Park Brake Not Set

8-Digit GM Part Number

Module Information

Numeric

Varies

ABS Inop Lamp

Inputs

On/Off

Off

Air Bag Lamp

Inputs

On/Off

Off

Brake: Class 2 Input

Lamp Status

On/Off

Off

Brake: Hardwire Input

Lamp Status

On/Off

On

Change Oil Lamp

Inputs

On/Off

Off

Check Gages Lamp

Inputs

On/Off

On

Chk Gage: Low Fuel

Lamp Status

On/Off

Off

Chk Gage: Low Oil PSI

Lamp Status

On/Off

On

Chk: Gage: Temp Gage

Lamp Status

On/Off

Off

Chk Gage: Volt Gage

Lamp Status

On/Off

Off

Dimming Input

Data

Volts

Varies

Hatch Ajar Switch

Inputs

Open/Closed

Closed

Headlamps

Inputs

On/Off

Off

Ignition 1

Data

Volts

9-16 Volts

varies

Low Oil Level

Inputs

Yes/No

No

Low Trac: ABS Active

Lamp Status

On/Off

Off

Low Trac: TCS Active

Lamp Status

On/Off

Off

Low Trac: TCS Fail Msg

Lamp Status

On/Off

Off

Low Trac: TCS Off Msg

Lamp Status

On/Off

Off

Low Traction Lamp

Inputs

On/Off

Off

Odometer

Data

miles/km

Varies

Red Brake Lamp

Inputs

On/Off

On

Reduced Performance Lamp

Inputs

On/Off

Off

Restraints ID

Module Information

Numeric

Varies

RPM

Data

RPM

0 RPM

Service Veh. Soon Lamp

Inputs

On/Off

Off

Skip Shift Lamp

Inputs

On/Off

Off

Software Release, Day

Module Information

Numeric

Varies

Software Release, Month

Module Information

Numeric

Varies

Software Release, Year

Module Information

Numeric

Varies

Software Version

Module Information

Numeric

Varies

SVS: Air Bag Fault

Lamp Status

On/Off

Off

SVS: Class 2

Lamp Status

On/Off

Off

SVS: Lost 50H

Lamp Status

On/Off

Off

TCS Off Lamp

Inputs

On/Off

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: Ignition ON/Engine OFF

Engine Oil Level Switch

Engine Data 2

OK/Low

OK

Engine Oil Life Percent

Engine Data 2

%

0-100% - varies

Fuel Tank Level Remaining

EVAP Data

%

0-100% - varies

Vehicle Speed Sensor

Engine Data 1

km/h (mph)

0 km/h (mph)