WL-C Engine Control System
PCM Replacement
• When the PCM has been replaced certain procedures have to be performed in the
following order:
1. Perform PCM configuration procedure.
2. Perform IMMOBILISER SYSTEM programming.
3. Perform PCM data reset procedure to reset all adaptation values in the PCM with the
aid of the M-MDS. Therefore, select the option ToolboxÆPowertrainÆData
ResetÆPCM and follow the instructions.
4. Perform After repair procedure.
5. Start the engine.
6. Turn the engine switch to the off position.
7. Turn the engine switch to the ON position (Engine off).
8. Perform KOEO self-test procedure.
9. Turn the engine switch to the off position.
10. Wait for 5 s.
11. Start the engine.
12. Perform KOER self-test procedure.
13. Turn the engine switch to the off position.
NOTE: For further information refer to the W/M.
NOTE: It is recommended to perform the MAF sensor learning function when a PCM data
reset has been carried out.
Service Training BT-50 01-55
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