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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 ECU is not properly configured with the correct calibration software, the ECU 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 ECU 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 12V 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 ECM
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. Access the Service Programming System (SPS) and follow the on-screen instructions.
4. On the SPS Supported Controllers screen, select ECM Control Module - Setup and follow the on-screen instructions.
5. On the SPS Supported Controllers screen, select ECM Control Module - Configuration and follow the on-screen instructions.
6. On the SPS Supported Controllers screen, select ECM 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 Programming and Relearning.

Warning: Replacement or reprogramming of the ECM, or replacement of the clutch pedal position sensor (CPPS) or clutch pedal requires that a CPPS learn procedure be performed. Failure to perform the CPPS learn procedure may result in personal injury or damage to the vehicle or its components if the vehicle is in gear and the starter motor is accidentally engaged.

9. With a scan tool, perform the Clutch Pedal Position Sensor Learn, if applicable Refer to Clutch Pedal Position Sensor Learn Clutch Pedal Position Sensor Learn.
10. With a scan tool, perform the CKP System Variation Learn Refer to the following:
Crankshaft Position System Variation Learn Testing and Inspection.
11. With a scan tool, perform the Throttle/Idle Learn procedure Refer to the following:
Throttle/Idle Learn Testing and Inspection.
12. With a scan tool, perform the Engine Oil Life Remaining When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was replaced.

Reprogram ECM
To reprogram an existing ECM, perform the following procedure:
Access the Service Programming System (SPS) and follow the on-screen instructions.
On the SPS Supported Controllers screen, select ECM Control Module Programming and follow the on-screen instructions.
On the SPS Supported Controllers screen, select ECM Control Module Setup and follow the on-screen instructions.
On the SPS Supported Controllers screen, select ECM Control Module Configuration and follow the on-screen instructions.
On the SPS Supported Controllers screen, select ECM Function Learn/Setup and follow the on-screen instructions.
At the end of programming, choose the Clear All DTCs function on the SPS screen.
With a scan tool, perform The Engine Oil Life Remaining When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was replaced.

Unsuccessful Programming Recovery
In the event of an interrupted or unsuccessful programming event, perform the following steps:
1. DO NOT turn the ignition OFF. Ensure that all ECU, DLC and programming tool connections are secure and the TIS terminal operating software is up to date.
2. Attempt to reprogram the ECU.
3. If the ECU can still not be programmed, turn the ignition OFF for at least one minute.
4. Turn the ignition ON and attempt to reprogram the ECU. The ECU should program.
- If the ECU still cannot be programmed, replace the ECU.
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