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Engine Control Module: Testing and Inspection




Engine Control Module Programming and Setup

Note:

* DO NOT program a control module unless directed to by a service procedure or a service bulletin. If the control module is not properly configured with the correct calibration software, the control module will not control all of the vehicle features properly.

* Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or control module damage may occur.

* Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. When required, install the EL-49642 - SPS Programming Support Tool to maintain system voltage. If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger.

* Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights (including daytime running lights), HVAC, radio, etc.

* During the programming procedure, follow the SPS prompts for the correct ignition switch position.

* Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.

* Prior to programming, record the engine oil life percentage remaining.

Reference Information

Special Tools

EL-49642 - SPS Programming Support Tool

For equivalent regional tools, refer to Special Tools Tools and Equipment.

Replace and Program Control Module

To program a replacement engine control module (ECM), perform the following procedure:

1. Install EL-49642 - SPS Programming Support Tool.

2. Access the Service Programming System (SPS) and follow the on-screen instructions.

3. On the SPS Supported Controllers screen, select Engine Control Module - Programming and follow the on-screen instructions.

4. On the SPS Supported Controllers screen, select Engine Control Module - Setup and follow the on-screen instructions.

5. On the SPS Supported Controllers screen, select Engine Control Module - Configuration and follow the on-screen instructions.

6. On the SPS Supported Controllers screen, select Engine Function - Learn/Setup and follow the on-screen instructions.

7. At the end of programming, choose the "Clear All DTCs" function on the SPS screen.

8. With a scan tool, perform the Theft Deterrent Programming. Refer to Immobilizer System Component Programming (with BTM) Immobilizer System Component Programming (with BTM)Immobilizer System Component Programming (without BTM) Immobilizer System Component Programming (without BTM).

9. With a scan tool, perform the Brake Pedal Position Sensor Learn. Refer to Brake Pedal Position Sensor Learn Brake Pedal Position Sensor Learn for the 6T30/6T40/6T45/6T50 automatic transmission.

10. With a scan tool, perform the CKP System Variation Learn. Refer to Crankshaft Position System Variation Learn Testing and Inspection.

11. With a scan tool, perform the Throttle/Idle Learn procedure. Refer to Throttle/Idle Learn Testing and Inspection.

12. With a scan tool, reset the Engine Oil Life Remaining back to the original percentage recorded before the control module was replaced, if available.

Reprogram Control Module

To reprogram an existing ECM, perform the following procedure:

1. Access the Service Programming System (SPS) and follow the on-screen instructions.

2. On the SPS Supported Controllers screen, select Engine Control Module - Programming and follow the on-screen instructions.

3. On the SPS Supported Controllers screen, select Engine Control Module - Setup and follow the on-screen instructions.

4. On the SPS Supported Controllers screen, select Engine Control Module - Configuration and follow the on-screen instructions.

5. On the SPS Supported Controllers screen, select Engine Function - Learn/Setup and follow the on-screen instructions.

6. At the end of programming, choose the "Clear All DTCs" function on the SPS screen.

7. With a scan tool, reset the Engine Oil Life Remaining back to the original percentage recorded before the control module was replaced, if available.

Unsuccessful Programming Recovery

In the event of an interrupted or unsuccessful programming event, perform the following:

1. Ignition ON. Ensure the control module, DLC and programming tool connections are secure and the SPS software is up to date.

2. Verify the control module can be reprogrammed.

• If the control module cannot be reprogrammed

1. Ignition OFF for one minute, ignition ON.

2. Verify the control module can be reprogrammed.

• If the control module cannot be reprogrammed, replace the control module.

• If the control module can be reprogrammed.

3. All OK.

• If the control module can be reprogrammed

3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

Refer to Control Module References Control Module References for control module replacement, programming, and setup.

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