Control Module References
| Control Module | Schematic | Repair Instruction | Programming and Setup |
|---|---|---|---|
| Diagnostic System Check - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle Symptoms - Vehicle | |||
| Audio Amplifier | Radio/Navigation System Schematics | Amplifier Replacement | This device requires no programming or setup. |
| Auxiliary Fluid Pump Control Module (4T45-E transaxle) | Automatic Transmission Controls Schematics | Auxiliary Fluid Pump Control Module Replacement | |
| Body Control Module | Body Control System Schematics | Body Control Module Replacement | Body Control Module Programming and Setup |
| Communication Interface Module (Vehicle Communication Interface Module) (OnStar ®) | OnStar Schematics | Communication Interface Module Replacement | OnStar Reconfiguration after VCIM replacement. |
| Digital Radio Receiver | Radio/Navigation System Schematics | Digital Radio Receiver Replacement | Digital Radio Receiver Setup after DRR replacement. |
| Electronic Brake Control Module (Antilock Brakes) | Antilock Brake System Schematics | Electronic Brake Control Module Replacement | This device requires no programming or setup. |
| Engine Control Module | Engine Controls Schematics for the 2.2L (L61) engine or Engine Controls Schematics for the 2.4L engine | Engine Control Module Replacement for the 2.2L (L61) engine or Engine Control Module Replacement for the 2.4L engine | Engine Control Module Programming and Setup |
| Generator Battery Disconnect Control Module | Hybrid Energy Storage Schematics | Generator Battery Disconnect Control Module Replacement | This device requires no programming or setup. |
| Generator Control Module | Hybrid Controls Schematics | Generator Control Module Replacement | Service Programming System (SPS) after replacement. |
| Heated Seat Control Module | Heated/Cooled Seat Schematics | Front Seat Heater Control Module Replacement | This device requires no programming or setup. |
| HVAC Control Module | HVAC Schematics | HVAC Control Module Replacement | HVAC Control Module Programming and Setup |
| Ignition Control Module - 2.2L (L61) engine | Engine Controls Schematics | Ignition Control Module Replacement | This device requires no programming or setup. |
| Inflatable Restraint Passenger Presence System | SIR Schematics | Inflatable Restraint Passenger Presence System Replacement - Front (with Heated Seat) or Inflatable Restraint Passenger Presence System Replacement - Front (without Heated Seat) | Passenger Presence System Programming and Setup |
| Inflatable Restraint Sensing and Diagnostic Module (Supplemental Inflatable Restraint) | SIR Schematics | Inflatable Restraint Sensing and Diagnostic Module Replacement | Inflatable Restraint Sensing and Diagnostic Module Programming and Setup |
| Inside Rearview Mirror | Inside Rearview Mirror Schematics | Rearview Mirror Replacement | Compass Calibration and Magnetic Variance after inside rearview mirror replacement. |
| Instrument Panel Cluster | Instrument Cluster Schematics | Instrument Cluster Replacement | Service Programming System (SPS) after IPC replacement. |
| Oil Flow Control Module - 3.5L (L66) engine | Engine Controls Schematics | Oil Flow Control Module Replacement | This device requires no programming or setup. |
| Powertrain Control Module - 3.5L (L66) engine | Engine Controls Schematics | Powertrain Control Module Replacement | |
| Power Steering Control Module (Electric Power Steering) | Power Steering Schematics | Steering Column Replacement | This device requires no programming or setup. |
| Radio | Radio/Navigation System Schematics | Radio Replacement | Radio Setup after radio replacement. |
| Sunroof Control Module | Sunroof Schematics | Sunroof Control Module Replacement | This device requires no programming or setup. |
| Transmission Control Module - 4T45-E transmission | Automatic Transmission Controls Schematics | Transmission Control Module Replacement (2.2L (L61)) or Transmission Control Module Replacement (2.4L (LAT)) | Transmission Control Module Programming and Setup |
Control Module References
Service Programming System (SPS)
For step by step programming instructions, please refer to the techline information system (TIS) terminal.
Review the information below to ensure proper programming protocol.
| IMPORTANT | DO NOT program a control module unless you are directed by a service procedure or you are directed by a General Motors Corporation service bulletin. Programming a control module at any other time will not permanently correct a customer's concern. It is essential that the Tech 2 and the TIS terminal are both equipped with the latest software before performing service programming system (SPS). Some modules will require additional programming/setup events performed before or after programming. Some vehicles may require the use of a CANDi module for programming. Review the appropriate service information for these procedures. DTCs may set during programming. Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO. |
Ensure the following conditions are met before programming a control module
- Vehicle system voltage There is not a charging system concern. All charging system concerns must be repaired before programming a control module. Battery voltage is greater than 12 volts but less than 16 volts. The battery must be charged before programming the control module if the battery voltage is low. A battery charger is NOT connected to the vehicle's battery. Incorrect system voltage or voltage fluctuations from a battery charger, may cause programming failure or control module damage. Turn OFF or disable any system that may put a load on the vehicle's battery, such as the following components: Twilight sentinel Interior lights Daytime running lights (DRL)-Applying the parking brake, on most vehicles, disables the DRL system. Refer to the Owner's manual. Heating, ventilation, and air conditioning (HVAC) systems Engine cooling fans, radio, etc.
- The ignition switch must be in the proper position. The Tech 2 prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position of the ignition switch during the programming procedure, unless instructed to do so.
- Make certain all tool connections are secure, including the following components and circuits: The RS-232 communication cable port The connection at the data link connector (DLC) The voltage supply circuits
- DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control module damage may occur.
- DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure that all control module and DLC connections are secure and the TIS terminal operating software is up to date. Attempt to reprogram the control module. If the control module cannot be programmed, replace the control module.
Audio Amplifier Programming and Setup
There is no setup procedure that needs to be performed for the amplifier on this vehicle.
Body Control Module Programming and Setup
A new body control module (BCM) must be programmed with the proper regular production option (RPO) configurations. The BCM stores the information regarding the vehicle options and if the BCM is not properly configured with the correct RPO codes the BCM will not control all of the features properly. The Tech 2 software will automatically prompt you with the various RPO's available for the vehicle. Ensure that the following conditions exist in order to prepare for BCM programming
- This entire procedure has been reviewed before starting
- The battery is fully charged.
- A CANdi module is installed between the vehicle and the scan tool.
- The ignition switch is in the ON position.
- The data link connector (DLC) is accessible.
- All disconnected modules and devices are reconnected before programming.
BCM Programming
| IMPORTANT | Use extreme care when verifying both the VIN and Odometer reading that is set in the service BCM. Once the VIN and Odometer are set in the replacement BCM it is impossible to change them, and if there is a mismatch, the part will be rendered useless. |
To setup a new replacement BCM select Vehicle Control Systems, then navigate to Computer/Integrating Systems, once in the Computer/Integrating Systems menu select Module Replacement/Setup and follow the instructions on the scan tool.
If the BCM fails to accept the program, perform the following steps
- Inspect all BCM connections.
- Verify that the scan tool has the latest software version.
SDM Part Number Learn Procedure
If the SDM is replaced the SDM part number must be learned by the BCM. Using a scan tool navigate to Vehicle Control Systems, Module Setup, Supplemental Inflatable Restraints then select Setup SDM Part Number In BCM. Follow the on screen directions.
| IMPORTANT | After programming, perform the following to avoid future misdiagnosis |
- Turn the ignition OFF for 10 seconds.
- Connect the scan tool to the data link connector.
- Turn the ignition ON with the engine OFF.
- Use the scan tool in order to retrieve history DTCs from all modules.
- Clear all history DTCs.
Communication Interface Module Programming and Setup
Each of the following service procedures require programming or setup procedures to be performed on the communication interface module.
Digital Radio Receiver Programming and Setup
Each of the following service procedures requires programming or setup procedures to be performed on the digital radio receiver.
Programming and Setup Procedures
This device requires no programming or setup.
Engine Control Module Programming and Setup
The following service procedures require either a programming or a setup event be performed for a complete repair.
ECM Reprogramming
If the ECM needs to be reprogrammed, refer to Service Programming System (SPS) .
If the generator battery control module/starter generator control module (SGCM) is replaced or has to be reprogrammed, it must be programmed using the service programming system (SPS). Refer to Service Programming System (SPS) .
This device requires no programming or setup.
Heated Seat Control Module Programming and Setup
This device requires no programming or setup.
HVAC Control Module Programming and Setup
Each of the following service procedures requires programming or setup procedures to be performed on the HVAC control module.
Ignition Control Module Programming and Setup
This module does not require that a programming event or a setup event is performed.
Instrument Cluster Programming and Setup
The instrument panel cluster (IPC) must be setup using the service programming system (SPS). Refer to Service Programming System (SPS) .
Passenger Presence System Programming and Setup
| IMPORTANT | Before rezeroing the passenger presence system (PPS), the front passenger seat must be completely empty of all items. The presence of any items on the front passenger seat will affect the calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC) and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing procedure and does not indicate additional system faults. |
If the PPS is replaced or serviced, perform the rezeroing procedure for the PPS. Refer to Passenger Presence System Rezeroing for the rezeroing procedure.
Power Steering Control Module Programming and Setup
This device requires no programming or setup.
Radio Programming and Setup
Each of the following service procedures require programming or setup procedures to be performed on the radio.
Sunroof Control Module Programming and Setup
This device requires no programming or setup.
Transmission Control Module Programming and Setup
- The transmission control module (TCM) must be programmed with the proper software/calibrations. Ensure that the following conditions exist in order to prepare for TCM programming: The battery is fully charged. The ignition switch is in the RUN position. The Techline equipment cable connection at the data link connector (DLC) is secure.
- Program the TCM using the latest software matching the vehicle. Refer to up-to-date Techline equipment user instructions.
- If the TCM fails to program, proceed as follows: Ensure that the TCM connection is OK. Inspect the Techline equipment for the latest software version. Attempt to program the TCM. If the TCM still cannot be programmed properly, replace the TCM.