GM Service Manual Online
For 1990-2009 cars only
Table 1: Instrument Panel Module Scan Tool Data Parameters
Table 2: Instrument Panel Module Scan Tool Output Controls

Instrument Panel Module Scan Tool Data Parameters

Parameter

System State

Expected Value

Description

Operating Conditions: Ignition ON

Accessory LED Duty Cycle

--

Varies

This displays %.

Accessory Relay Status

--

Off

The scan tool displays On or Off. This is the state of the accessory relay.

Adjusted Battery Current

--

Varies

This displays amps.

Battery Voltage Signal

--

Varies

This displays Volts. This is the current battery voltage signal.

BPP Sensor

--

Varies

This displays Counts. This is the current brake pedal position (BPP) measured in counts.

BPP Sensor Reference

--

Varies

This displays Counts. This is the brake pedal position (BPP) sensor reference measured in counts.

BPPS High During Learn

--

No

The scan tool displays Yes or No. Yes is displayed if the brake pedal position sensor (BPPS) was high during learn.

BPPS Learned Home Position

--

Varies

This displays Volts. This is the brake pedal position sensor (BPPS) home position measured in volts.

BPPS Low During Learn

--

No

The scan tool displays Yes or No. Yes is displayed if the brake pedal position sensor (BPPS) was low during learn.

BPPS Move During Learn

--

No

The scan tool displays Yes or No. Yes is displayed if the brake pedal position sensor (BPPS) was moved during learn.

BPPS Status

--

Learned

The scan tool displays Learned, Unlearned, Undecided or Invalid. Learned is displayed if the brake pedal position sensor (BPPS) is calibrated properly.

Calculated Brake Pedal Position

--

Varies

This displays Counts. This is the current brake pedal position measured in counts.

Cigar Lighter Relay

--

Off

The scan tool displays On or Off. This is the state of the cigarette lighter relay.

Courtesy Lamp Switch

--

Off

The scan tool displays On or Off. This is the state of the courtesy lamp switch.

Column Lock Relay

--

Disabled

The scan tool displays Enabled or Disabled. This is the state of the column lock relay.

Cruise

--

Varies

This displays Counts. This is the state of the cruise switch measured in counts.

Dimming potentiometer

--

OK

The scan tool displays OK or Failed.

Dimming Required

--

No

The scan tool displays Yes or No.

Estimated Battery Temp.

--

Varies

This displays °C (°F). This is the current estimated battery temperature.

Flash to Pass Switch

--

Inactive / Off

The scan tool displays Active / Inactive or On / Off. This is the state of the flash to pass switch.

Front Foglamp Relay Status

--

Off

The scan tool displays On or Off. This is the state of the front foglamp relay.

Hazard Lamp Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the hazard lamp switch.

Hazard Lamps

--

Disabled

The scan tool displays Enabled or Disabled. This is the state of the hazard lamps.

Headlamp Switch

--

Off

The scan tool displays On or Off. This is the state of the headlamp switch.

Headlamp Washer Relay Status

--

Off

The scan tool displays On or Off. This is the state of the headlamp washer relay.

Headlamp Washer Switch

--

Off

The scan tool displays On or Off. This is the state of the headlamp washer switch.

Headlamp/Parklamp Off Switch

--

Off

The scan tool displays On or Off. This is the state of the headlamp / parklamp off switch.

High Beam Relay Status

--

Off

The scan tool displays On or Off. This is the state of the high beam relay.

High Beam Select Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the high beam select switch.

Horn Relay Status

--

Off

The scan tool displays On or Off. This is the state of the horn relay.

Ignition Mode Switch

--

Varies

This displays Volts. This is the current voltage at the ignition mode switch.

Incandescent Dimming

--

Varies

This displays %. This is the interior lighting dimming percentage.

Key Cylinder Halo Lamp

--

Varies

This displays %. This is the dimming percentage at the key cylinder.

Learn in Progress

--

No

The scan tool displays Yes or No. Yes is displayed if the brake pedal position sensor (BPPS) is in learn mode.

LED Dimming

--

Varies

This displays %. This is the backlighting dimming percentage.

Lights On With Wipers

--

Off

The scan tool displays On or Off.

Low Beam Relay Status

--

No

The scan tool displays Yes or No. This is the state of the low beam relay.

OFF LED Duty Cycle

--

Varies

This displays %.

Park Lamp Switch

--

Off

The scan tool displays On or Off. This is the state of the park lamp switch.

Park Position Input

--

In Park

The scan tool displays Out of Park or In Park. In Park is displayed if the vehicle transmission is in park.

Parkgear Home Position Switch

--

Varies

The scan tool displays On or Off.

Parking Brake Switch

--

Released

The scan tool displays Applied or Released. This is the state of the parking brake switch.

Parklamp Relay Status

--

Off

The scan tool displays On or Off. This is the state of the parklamp relay.

Personalization Status

--

Varies

The scan tool displays Driver 1, Driver 2 or Unknown.

Photocell State

--

Varies

The scan tool displays Day or Night.

PRNDL State

--

Park

The scan tool displays Park or Not in Park. Park is displayed if the transmission gear is in park.

Remote Start Attempts

--

Varies

The scan tool displays a numeric value from 0-10.

Remote Start Equipped

--

Varies

The scan tool displays Active or Inactive.

Remote Start Request

--

No

The scan tool displays Yes or No.

Remote Starts Remaining

--

Varies

The scan tool displays a numeric value from 0-10.

Run Relay Status

--

Off

The scan tool displays On or Off. This is the state of the run relay.

Run/Crank Relay Status

--

Off

The scan tool displays On or Off. This is the state of the run/crank relay.

SIR Lighting

--

Disabled

The scan tool displays Enabled or Disabled. This is the state of the SIR lighting.

Smart Beam Status

--

Enabled

The scan tool displays Enabled or Disabled. This is the state of the smart beam.

Start LED Duty Cycle

--

Varies

This displays %.

Steering Wheel Controls Return

--

Varies

This displays Counts.

Steering Wheel Position Sensor

--

Varies

This displays Counts. This is the position of the steering wheel measured in counts.

Stop Lamp Status

--

Off

The scan tool displays On or Off. This is the state of the stop lamps.

Stoplamp Relay

--

Released

The scan tool displays Applied or Released. This is the state of the stoplamp relay.

Tap Up/Down Enable

--

Disabled

The scan tool displays Enabled or Disabled.

Telescope Forward Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the telescope forward switch.

Telescope Rearward Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the telescope rearward switch.

Tilt Down Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the tilt down switch.

Tilt Up Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the tilt up switch.

Traction Control Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the traction control switch.

Twilight Enable

--

Varies

The scan tool displays Enabled or Disabled.

Valet Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the valet switch.

Instrument Panel Module Scan Tool Output Controls

Output Control

Description

Accessory LED

This output control is used to command the Accessory LED ON or OFF.

Air Quality Sensitivity Level

This output control is used to control the air quality sensitivity level.

BPP Sensor Calibration

This output control is used to calibrate the brake pedal position (BPP) sensor.

Column Lock Relay Enable

This output control is used to command the column lock relay enable function.

Front Fog Lamps

This output control is used to command the front fog lamps ON or OFF.

Headlamp Washer

This output control is used to select a headlamp washer ON or OFF.

High Beams

This output control is used to command the front high beams ON or OFF.

Horn

This output control is used to command the horn ON or OFF.

Idle Boost Level 1

This output control is used to increase percentage or amperage of the idle boost level 1. Boost increases engine speed in the event that there is a low battery condition.

Idle Boost Level 2

This output control is used to increase percentage or amperage of the idle boost level 2. Boost increases engine speed in the event that there is a low battery condition.

Idle Boost Level 3

This output control is used to increase percentage or amperage of the idle boost level 3. Boost increases engine speed in the event that there is a low battery condition.

Ignition Switch LED Power

This output control is used to command the Accessory, Off and Start LEDs around the start switch ON or OFF.

Incandescent Dimming

This output control is used to control the incandescent dimming from 0-100 percent by 20 percent increments when INCREASE or DECREASE is selected.

LED Dimming

This output control is used to control the LED dimming from 0-100 percent by 20 percent increments when INCREASE or DECREASE is selected.

Low Beams

This output control is used to command the low beam headlamps ON or OFF.

Off LED

This output control is used to command the Off LED ON or OFF.

Parking Lamps

This output control is used to command the parking lamps ON or OFF.

Program VIN

This output control is used to program the vehicle identification number (VIN) into the module.

Setup New IPM / RIM

This output control is used to setup the instrument panel module (IPM) or rear integration module (RIM).

Smart Beam

This output control is used to enable or disable the smart beam in the rear view mirror.

Start LED

This output control is used to command the Start LED ON or OFF.

Stop Lamp

This output control is used to command the stop lamps ON or OFF.