Mazda 2009 5 Informations techniques Page 73

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WL-C Engine Control System
The PCM has two connectors with 154 pins in total.
BT-50_01041
Similar to other current modules the PCM now allows to carry out the following
programming functions by means of M-MDS:
Programmable module installation (to replace PCM)
Module reprogramming (to update software calibration)
Programmable parameters (to input injector correction factors)
As-build data (to update As-build data)
Data reset (PCM and MAF sensor)
MAF learning (to adapt MAF sensor condition to PCM)
NOTE: For replacement of the PCM certain procedures have to be followed (refer to the
chapter ‘Maintenance and Repair’).
A/C Cut-Off Control
Under the following engine operating conditions the PCM turns the A/C relay off to
improve driveability:
For a certain time when the accelerator-opening angle is 87.5 % or more.
Permanently when ECT is above 113 °C until temperature falls below 110 °C.
Service Training BT-50 01-49
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