Engine Control Module (ECM), Replacing

Engine control module
Engine control module, replacing
Work sequence
- Print out control module identification.

Note: Replace control module if the control module version displayed does not correspond to the vehicle. For latest part number for engine control module:, Refer to Parts Supplier

- Switch ignition off.
- Remove wiper arms and cowl panel:
- Release connector from control module and disconnect.





- Press control module to right and pull out.
- Install new control module and press to left.
- Connect and lock connectors.
- Code control module in "guided fault finding" and adapt to electrical immobilizer and to throttle valve control module, Refer to Adapting components and functions.

Vehicles with cruise control system (CCS)
- Check whether cruise control module is activated; activate if necessary, Refer to Adapt components and functions.

Vehicles with automatic transmission
- Learning kick down switch point, Refer to Adapting components.
- Adapt control module for automatic transmission, Refer to Adapting components.

Continue for all models
- Road test vehicle.
Observe applicable safety precautions during road test
During the road test the following operating conditions must be done:
- Coolant temperature must exceed 80°C.
- When temperature is reached, the operating conditions, as follows, must be attained several times:
- Idling
- Part throttle
- Enrichment:
- Full throttle
- Overrun
- Read control module DTC memory again.
- Generate readiness code in "Guided fault finding, Refer to Adapting functions and components.