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

Park Assist Module Scan Tool Data Parameters

Parameter

Expected Value

Definition

Operating Conditions: Ignition ON

Battery Voltage

Varies

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

Loudspeaker Feed Voltage Output

Varies

This displays Volts. This is the current output voltage to the loudspeakers.

Park Assist Disable 1-7 History

Varies

The scan tool displays Empty, Manual Disable, Park Brake, hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sens Disturbance, Snow/Ice/Mud or Sensor Ring Time. This is the park assist disable reason stored in history.

Park Assist Front Display LED CKT

OK

The scan tool displays OK or Over Current. This is the current state of the front park assist display indicators circuit.

Park Assist Front Red LED

Off

The scan tool displays On or Off. This is the current state of the front park assist red indicator.

Park Assist Front Y1 LED

Off

The scan tool displays On or Off. This is the current state of the front park assist first yellow indicator.

Park Assist Front Y2 LED

Off

The scan tool displays On or Off. This is the current state of the front park assist second yellow indicator.

Park Assist Rear Display LED CKT

OK

The scan tool displays OK or Over Current. This is the current state of the rear park assist display indicators circuit.

Park Assist Rear Red LED

Off

The scan tool displays On or Off. This is the current state of the rear park assist red indicator.

Park Assist Rear Y1 LED

Off

The scan tool displays On or Off. This is the current state of the rear park assist first yellow indicator.

Park Assist Rear Y2 LED

Off

The scan tool displays On or Off. This is the current state of the rear park assist second yellow indicator.

Park Assist Switch LED

Off

The scan tool displays On or Off. This is the current state of the park assist switch indicator.

Park Assist Switch LED CKT

OK

The scan tool displays OK or Over Current. This is the current state of the park assist switch indicator circuit.

Park Assist System Status

Varies

The scan tool displays Enable, Disable, Inhibit or Failed/Block. This is the current state of the park assist system.

Power Mode

Run

The scan tool displays Off, Accessory, Run or Crank Request. This is the current state of the ignition switch.

Rear Region 1

Varies

The scan tool displays No Detect or Zone 1-8.

Rear Region 2

Varies

The scan tool displays No Detect or Zone 1-8.

Rear Region 3

Varies

The scan tool displays No Detect or Zone 1-8.

Sensor Feed Voltage Output

Varies

This displays Volts. This is the current output voltage to the parking aid sensors.

Vehicle Speed

0 km/h (0 mph)

The scan tool displays km/h (mph). This is the current speed of the vehicle.

XM Button

Inactive

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

Park Assist Module Scan Tool Output Controls

Scan Tool Output Control

Description

Clear History Data

This command will clear the park assist disable history.

LED Test

This command will turn the front park assist LEDs ON and OFF.

Rear Red LED

This command will turn the rear park assist red LED ON and OFF.

Rear Yellow LED 1

This command will turn the rear park assist first yellow LED ON and OFF.

Rear Yellow LED 2

This command will turn the rear park assist second yellow LED ON and OFF.