Engine Control Module: Testing and Inspection

Engine Control Module Programming and Setup (LFW or LFX)

The following service procedures require either a programming or a setup event performed for a complete repair.

ECM Replacement

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.

If the engine control module (ECM) is replaced, the following procedures must be performed:

1. The ECM Reprogramming-Refer to Service Programming System (SPS) Service Programming System (SPS).

2. The Theft Deterrent Programming-Refer to Immobilizer System Component Programming (without ATH) Immobilizer System Component Programming (without ATH)Immobilizer System Component Programming (with ATH) Immobilizer System Component Programming (with ATH).

3. Brake Pedal Position Sensor Learn-Refer to Brake Pedal Position Sensor Learn 6L45/6L50/6L80/6L90 - Automatic Transmission.

4. The CKP Variation Learn-Refer to Crankshaft Position System Variation Learn Testing and Inspection.

5. The Clutch Pedal Position Sensor Learn-Refer to Clutch Pedal Position Sensor Learn Testing and Inspection for manual transmission.

6. The Throttle Learn procedure-Refer to Throttle/Idle Learn Testing and Inspection.

7. Engine Oil Life Remaining-When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded.

8. Transmission Fluid Life Remaining-When available, use a scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded.

ECM Reprogramming

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.

Note: After programming, perform the following to avoid future misdiagnosis:

1. Turn the ignition OFF for 30 s.

2. Turn the ignition ON with the engine OFF.

3. Use the scan tool in order to retrieve history DTCs from all modules.

4. Clear all history DTCs.

* If the ECM needs to be reprogrammed, refer to Service Programming System (SPS) Service Programming System (SPS).

* The Clutch Pedal Position Sensor Learn-Refer to Clutch Pedal Position Sensor Learn Testing and Inspection for manual transmission.

* 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 reprogrammed.

* Transmission Fluid Life Remaining-When available, use a scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded before the module was reprogrammed.

Setup for Component Replacement

The replacement of some components will require a setup procedure for complete repair.

If any of the following components are replaced, a CKP Variation Learn Procedure must be performed. Refer to Crankshaft Position System Variation Learn Testing and Inspection.

* Engine replacement

* Any engine repair that disturbs the crankshaft position (CKP) sensor or its relationship with the crankshaft reluctor wheel

* CKP sensor

• If the throttle body is replaced or a throttle body cleaning procedure is completed, the Throttle/Idle Learn Procedure must be performed. Refer to Throttle/Idle Learn Testing and Inspection.