GM Service Manual Online
For 1990-2009 cars only
Table 1: Distance Sensing Cruise Control Scan Tool Data Parameters
Table 2: Distance Sensing Cruise Control Scan Tool Output Controls

Distance Sensing Cruise Control Scan Tool Data Parameters

Parameter

System State

Expected Value

Description

Operating Conditions: Engine ON

ABS Active

--

No

The scan tool displays Yes or No. Yes is displayed if the antilock brake system (ABS) was engaged or active.

ABS Malfunction

--

No

The scan tool displays Yes or No. Yes is displayed if there was an antilock brake system (ABS) malfunction.

ACC Amp. Audible Alert

--

Ready

The scan tool displays Ready or Not Ready. This is the state of the adaptive cruise control (ACC) audible alert.

ACC Amp. Not Ready

--

No

The scan tool displays Yes or No. Yes is displayed if the adaptive cruise control (ACC) amp was not ready.

ACC Configuration

--

Varies

The scan tool displays Yes or No. This is the state of the adaptive cruise control (ACC) configuration.

ACC Ready

--

Varies

The scan tool displays Yes or No. This was the state of the adaptive cruise control (ACC) system.

Alert Indicator Message

--

Off

The scan tool displays On or Off. This is the state of the alert indicator.

Alignment Error

--

Varies

This displays °. This is the current degree total of alignment error.

Angle to Closest Target

--

Varies

This displays °. This is the current degree angle to the closest target.

Auto. Alignment Learn Status

--

Aligned

The scan tool displays Aligned or Not Aligned. This is the learn state of the automatic alignment.

Automatic Braking Status

--

Ready

The scan tool displays Ready or Not Ready. This is the state of the automatic brakes.

Brake Pedal Pressure Detected

--

No

The scan tool displays Yes or No. Yes is displayed if the brake pedal was applied.

Brake Pedal Travel Detected

--

No

The scan tool displays Yes or No. Yes is displayed if the brake pedal was applied.

Brakes Overheated

--

No

The scan tool displays Yes or No. Yes is displayed if the brakes were too hot.

Clean Radar Indicator Message

--

Off

The scan tool displays On or Off. This is the state of the clean radar indicator.

Cruise Control Switch Off

--

Yes

The scan tool displays Yes or No. Yes is displayed if the cruise control switch was off.

Cruise Control Malfunction

--

No

The scan tool displays Yes or No. Yes is displayed if there was a cruise control malfunction.

Cruise Control Switch Malfunction

--

No

The scan tool displays Yes or No. Yes is displayed if there was a cruise control switch malfunction.

Cruise Engaged Indicator Message

--

Off

The scan tool displays On or Off. This is the state of the cruise engaged indicator.

Cruise On/Off Switch Status

--

Inactive

The scan tool displays Active or Inactive. This is the state of the cruise on/off switch.

Cruise Ready Indicator Message

--

Off

The scan tool displays On or Off. This is the state of the cruise ready indicator.

Driver Throttle Override Status

--

Inactive

The scan tool displays Active or Inactive. This is the state of the throttle override.

Driver Selected Speed

--

Varies

This displays km/h (mph). This is the driver's selected speed.

ECM Cruise Disengage

--

No

The scan tool displays Yes or No. Yes is displayed if the engine control module (ECM) disengaged cruise.

Follow Speed

--

Varies

This displays km/h (mph). This is the vehicle follow speed when there is a vehicle directly ahead.

Following Distance

--

Varies

This is the vehicle follow distance when there is a vehicle directly ahead.

Ignition Voltage Signal

--

Varies

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

HUD Malfunction

--

No

The scan tool displays Yes or No. Yes is displayed if there was a head-up display (HUD) malfunction.

HUD Virtual Device

--

Varies

The scan tool displays Present or Not Present. Present is displayed if the head-up display (HUD) is detected.

Internal DSCC Overtemp

--

No

The scan tool displays Yes or No. Yes is displayed if the distance sensing cruise control (DSCC) module was too hot.

Invalid Vehicle Speed

--

No

The scan tool displays Yes or No. Yes is displayed if the vehicle speed was invalid.

Not in Run Mode

--

Varies

The scan tool displays Yes or No. Yes is displayed if the vehicle was not in run mode.

Radar Activated

--

No

The scan tool displays Yes or No. Yes is displayed if the radar is activated.

Radar Needs Cleaning

--

No

The scan tool displays Yes or No. Yes is displayed if the radar needed cleaning.

Range

--

Varies

This displays Meters (Feet).

Service Radar Indicator Message

--

Off

The scan tool displays On or Off. This is the state of the service radar indicator.

Stoplamp Signal

--

Off

The scan tool displays On or Off. This is the state of the stoplamp signal.

Supply Voltage Out of Range

--

No

The scan tool displays Yes or No. Yes is displayed if the supply voltage was out of range.

Target Found this Ignition Cycle

--

Varies

The scan tool displays Yes or No. Yes is displayed if a target was found during the current ignition cycle.

Vehicle Ahead Indicator Message

--

Off

The scan tool displays On or Off. This is the state of the vehicle ahead indicator.

Yaw Rate Invalid

--

No

The scan tool displays Yes or No. Yes is displayed if the yaw rate was invalid.

Distance Sensing Cruise Control Scan Tool Output Controls

Output Control

Description

Factory Reset

The scan tool changes the adaptive cruise module (ACM) Auto Alignment Learn Status parameter from Aligned to Not Aligned. Once in the Not Aligned state, the vehicle must be driven at speeds of at least 56 km/h (35 mph) and find at least 40 acceptable targets in order to correct the auto alignment status to Aligned.

DSCC Setup (Japan Only)

The scan tool enables the Adaptive Cruise Module (ACM) to calibrate itself after ACM replacement.