GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module
Table 2: Powertrain Control Module - 2.0L
Table 3: Engine Control Module - 2.2L
Table 4: Engine Control Module - 2.4L

The scan tool data lists contain all of the cruise control related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. 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 Diagnostic System Check - Vehicle.

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.

Body Control Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine Idling at Normal Operating Temperature/Vehicle is in Park or Neutral/Cruise On/Off Switch is Turned Off

Battery Voltage Signal

BCM Data

Volts

Varies

Cruise Control Switch

BCM Data

Off / On / Error / Resume / Set

Off

Cruise Control Switch

BCM Data

Volts

0 Volts

Powertrain Control Module - 2.0L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine Idling at Normal Operating Temperature/Vehicle is in Park or Neutral/Cruise On/Off Switch is Turned Off

Clutch Pedal Switch

Cruise Control Data

Applied/Released

Released

Cruise Control Active

Cruise Control Data

Yes/No

No

Cruise Disengage (1-8) History

Cruise Control Data

Last reason for cruise control disengagement

Varies

Cruise On/Off Switch

Cruise Control Data

On/Off

Off

Cruise Resume/Accel. Switch

Cruise Control Data

On/Off

Off

Cruise Set/Coast Switch

Cruise Control Data

On/Off

Off

Initial Brake Apply Signal

Cruise Control Data

Applied/Released

Released

Engine Speed

Cruise Control Data

RPM

Varies

Ignition 1 Signal

Cruise Control Data

Volts

Varies

Reduced Engine Power

TAC Data

Active/Inactive

Inactive

Stoplamp Pedal Switch

Cruise Control Data

Applied/Released

Released

Traction Control Status

Cruise Control Data

Active/Inactive

Inactive

Vehicle Speed Sensor

Cruise Control Data

km/h (mph)

0

Engine Control Module - 2.2L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine Idling at Normal Operating Temperature/Vehicle is in Park or Neutral/Cruise On/Off Switch is Turned Off

Cruise Control Active

Cruise Control Data

Yes/No

No

Cruise Disengage (1-8) History

Cruise Control Data

Last reason for cruise control disengagement

Varies

Cruise On/Off Switch

Cruise Control Data

On/Off

Off

Cruise Resume/Accel. Switch

Cruise Control Data

On/Off

Off

Cruise Set/Coast Switch

Cruise Control Data

Active / Inactive / Invalid

Inactive

Initial Brake Apply Signal

Cruise Control Data

Applied/Released

Released

Engine Speed

Cruise Control Data

RPM

Varies

Ignition 1 Signal

Cruise Control Data

Volts

Varies

Reduced Engine Power

TAC Data

Active/Inactive

Inactive

Stoplamp Pedal Switch

Cruise Control Data

Applied/Released

Released

TCC / Cruise Brake Pedal Switch

Cruise Control Data

Applied/Released

Released

Traction Control Status

TAC Data

Active/Inactive

Inactive

Vehicle Speed Sensor

Cruise Control Data

km/h (mph)

0

Engine Control Module - 2.4L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine Idling at Normal Operating Temperature/Vehicle is in Park or Neutral/Cruise On/Off Switch is Turned Off

CPP Switch (If Equipped)

TAC Data

Applied/Released

Released

Cruise Control Active

TAC Data

Yes/No

No

Engine Speed

TAC Data

RPM

Varies

Ignition 1 Signal

TAC Data

Volts

Varies

Reduced Engine Power

TAC Data

Active/Inactive

Inactive

TCC / Cruise Brake Pedal Switch

TAC Data

Applied/Released

Released

Vehicle Speed Sensor

TAC Data

km/h (mph)

0