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

Liftgate Module Scan Tool Data Parameters

Parameter

System State

Expected Value

Definition

Operating Conditions: Ignition ON

Air Bags Deployed

--

No

This displays Yes or No. Yes is displayed if the any of the air bags deployed during the last open or close history data.

Battery Voltage Signal 2

--

Varies

This displays volts. This is the voltage input supplied to the liftgate module.

Calibration

--

Varies

This displays Yes or No. Yes is displayed if a calibration cycle occurred during the last open or close history data.

Crank Signal Present

--

Varies

The scan tool displays Yes or No. This was the last state of the crank signal in the open or close history data.

Door Lock Status

--

Varies

The scan tool displays Locked or Unlocked. This was the last state of the door locks in the open or close history data.

Fault Active

--

Varies

This displays Yes or No. Yes is displayed if a fault was active in the open or close history data.

Hall Sensor Feed Status

--

No Output

The scan tool displays No Output or Short to Ground. This is the state of the hall sensor feed circuit.

Hall Sensor Feed Status (history data)

--

Varies

The scan tool displays No Output or Short to Ground. This was the last state of the hall sensor feed circuit in the open or close history data.

Interrupted

--

Varies

This displays Yes or No. Yes is displayed if the liftgate system was interrupted during an open or close cycle.

LGM Clutch Actuator Cmd.

--

Inactive

This displays Active or Inactive. This is the commanded state of the liftgate module clutch actuator.

LGM Disable Switch

--

Inactive

This displays Active or Inactive. This is the state of the liftgate disable switch.

LGM Disable Switch (history data)

--

Inactive

This displays Active or Inactive. This was the last state of the liftgate disable switch during the last open or close history data.

LGM Front Control Switch

--

Inactive

This displays Active or Inactive. This is the state of the front control switch of the liftgate module.

LGM Full Open Switch

--

Inactive

This displays Active or Inactive. This is the state of the full open liftgate switch.

LGM Latch Fault

--

Varies

This displays Yes or No. Yes is displayed if there was a latch fault in the open or close history data.

LGM Latch Motor Cinch Cmd.

--

Inactive

This displays Active or Inactive. This is the commanded state of the latch motor cinch.

LGM Latch Pawl Sw.

--

Inactive

This displays Active or Inactive. This is the state of the latch pawl switch.

LGM Latch Ratchet Sw.

--

Inactive

This displays Active or Inactive. This is the state of the latch ratchet switch.

LGM Latch Motor Release Cmd.

--

Inactive

This displays Active or Inactive. This is the commanded state of the latch motor release.

LGM Latch Sector Sw.

--

Inactive

This displays Active or Inactive. This is the state of the latch sector switch.

LGM Motor Closed Cmd.

--

Inactive

This displays Active or Inactive. This is the commanded state of the liftgate motor closing.

LGM Motor Open Cmd.

--

Inactive

This displays Active or Inactive. This is the commanded state of the liftgate motor opening.

LGM Open/Close Position Learned

--

Yes

The scan tool displays Yes or No. This is the state of the liftgate module open/close position programming.

LGM Position Out of Range

--

Varies

The scan tool displays Yes or No. Yes is displayed if the liftgate position was out of range in the last open or close history data.

Liftgate Ajar Switch

--

Inactive

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

Liftgate Handle Sw. Status

--

Inactive

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

Liftgate Handle Sw. Status (history data)

--

Inactive

The scan tool displays Active or Inactive. This was the last state of the liftgate handle switch in the open or close history data.

Liftglass Ajar Switch

--

Varies

The scan tool displays Ajar or Closed. This was the last state of the liftglass ajar switch in the open or close history data.

Module Over Current Detected

--

Varies

The scan tool displays Yes or No. Yes is displayed if the liftgate module detected an over current condition in the last open or close history data.

No Signal

--

Varies

The scan tool displays Yes or No. Yes is displayed if the liftgate module detected a no signal condition in the last open or close history data.

Object Detection Sensor Status

--

Active

The scan tool displays Active or Inactive. This is the state of the object detection sensor.

Object Detection Sensor Status (history data)

--

Varies

The scan tool displays Active or Inactive. This was the last state of the object detection sensor in the open or close history data.

Object Sensor Supply Voltage

--

Varies

This displays volts. This is the voltage input supplied to the object sensor.

Obstacle Detected in Liftgate

--

Varies

This displays Yes or No. Yes is displayed if an obstacle was detected in the last open or close history data.

System Operation Status

--

Varies

This displays OK or Not OK. OK is displayed if the system operation was normal during the last open or close history data.

System Voltage

--

Varies

This displays OK or Out of Range. This was the state of the system voltage during the last open or close history data.

Temperature Out of Range

--

Varies

This displays Yes or No. Yes is displayed if the system temperature was out of range during the last open or close history data.

Theft Armed

--

Varies

This displays Yes or No. This was the status of the theft system during the last open or close history data.

Vehicle In Park

--

Varies

This displays Yes or No. Yes is displayed if the vehicle was in Park during the last open or close history data.

Vehicle Speed Too Fast

--

Varies

This displays Yes or No. Yes is displayed if the vehicle speed exceeded the maximum predetermined speed during the last open or close history data.

Liftgate Module Scan Tool Output Controls

Scan Tool Output Control

Description

LGM Open/Close Test

This will command the liftgate to open and close.