GM Service Manual Online
For 1990-2009 cars only

Body Control Module Scan Tool Data Definitions (MM6/MZ6/MAE w/M32)

The BCM Scan Tool Data Definitions contains a brief description of all steering column related BCM parameters available on the scan tool in the Chassis Data list, if the vehicle is equipped with an electronic steering column lock.

Column Lock Relay Command: The scan tool displays On/Off. The state displayed is the command state of the lock enable relay. This function is controlled by the BCM with data from the remote control door lock receiver (RCDLR).

Column Lock Relay Signal: The scan tool displays On/Off. The state displayed is the actual state of the lock enable relay. This function is controlled by the BCM with data from the RCDLR.

Driver Position Module Scan Tool Data Definitions

The DPM Scan Tool Data Definitions contains a brief description of all steering column related DPM parameters available on the scan tool.

Default Telescope Exit Position: The scan tool displays the default voltage value for the telescope operation in the exit position.

Memory 1 Telescope Exit Position: The scan tool displays 0-5 volts. The value displayed is the telescope sensor voltage stored by the DPM and is used to recall the telescope exit position for driver 1.

Memory 1 Telescope Position: The scan tool displays 0-5 volts. The value displayed is the telescope sensor voltage stored by the DPM and is used to recall the telescope position for driver 1.

Memory 2 Telescope Exit Position: The scan tool displays 0-5 volts. The value displayed is the telescope sensor voltage stored by the DPM and is used to recall the telescope exit position for driver 2.

Memory 2 Telescope Position: The scan tool displays 0-5 volts. The value displayed is the telescope sensor voltage stored by the DPM and is used to recall the telescope position for driver 2.

Telescope Forward Command: The scan displays On or Off. The scan tool displays On when the DPM commands the telescope actuator forward.

Telescope Forward Switch: The scan tool displays Active or Inactive. When the switch is pressed to the forward position the scan tool displays Active. When the switch is not depressed forward the scan tool displays Inactive.

Telescope Rearward Command: The scan displays On or Off. The scan tool displays On when the DPM commands the telescope actuator rearward.

Telescope Rearward Switch: The scan tool displays Active or Inactive. When the switch is pressed to the rearward position the scan tool displays Active. When the switch is not depressed rearward the scan tool displays Inactive.

Telescope Sensor: The scan tool displays 0-5 volts. The value displayed is the telescope sensor signal voltage. This voltage varies when the steering column is moved forward or rearward and is used by the DPM to determine the steering column position when memory settings are stored and recalled.

Steering Column Lock Module Scan Tool Data Definitions (MM6/MZ6/MAE w/M32)

The SCLM Scan Tool Data Definitions contains a brief description of all steering column related SCLM parameters available on the scan tool, if the vehicle is equipped with an electronic steering column lock.

Battery Voltage Signal: The scan tool displays 0-20 volts. The scan tool displays the voltage as received on the battery positive voltage circuit of the module.

Column Feedback Signal: The scan tool displays 0-5 volts. This data represents the signal received on the column lock motor signal circuit.

Column Lock Enable Signal: The scan tool displays Enabled or Disabled. This signal determines whether or not the BCM is allowing the SCLCM to function.

Column Lock Module Status: The scan tool displays Enabled or Disabled, whether or not the SCLCM is functioning.

Column Lock Motor Command: The scan tool displays Lock, Unlock, or No Action. This data shows what the SCLCM is commanding the column lock motor.

Column Lock Motor Status: The scan tool displays Lock, Unlock, No Action, or Undefined. This data shows what the column lock motor is doing.

Column Lock Status: The scan tool displays the current column lock state. This data represents what column lock functional mode the SCLCM is in. The SCLCM enters different column lock states based upon information received from various inputs associated with the column lock system.

Ignition Voltage Signal: The scan tool displays ON or OFF. When the SCLCM detects ignition is present , the scan tool will display On. When the SCLCM does not detect ignition, the scan tool will display OFF. This ignition switch information is hard wired into the SCLCM.

Park Switch: The scan tool displays On or Off. When the transmission is placed in PARK the scan tool displays On and when the transmission is out of PARK the scan tool displays Off.

Password Status: The scan tool displays Valid, Invalid, or Not Programmed. The SCLCM compares the password it has to the password in the RCDLR via class 2. When the password is the same then the scan tool displays Valid and when the password is different then the scan tool displays Invalid. When the SCLCM is has not been programmed the seed and key procedure to program the module has not been performed.