involves models: Changan Ford Automobile Co., Ltd. manufactured before September 2009 Mondeo sedan, configure the 2.3 L engine.
Symptom: radiator fan does not work, causing the engine temperature is too high.
Faulty: TCM and the need to upgrade the PCM, while limiting the accelerator pedal is adjusted.
countermeasures: Please refer to the following steps for maintenance.
(1) for upgrading the PCM fault diagnostic IDS, the PCM version of the software upgrade from a lower numbered version of 7G91-12K532-EK. Upgrade confirmation should be preceded by the original car’s PCM level, if the original number suffix PCM software versions prior to EK, please upgrade to 7G91-12K532-EK version (for example, manufactured before September 22, 2009 car); that is, if the original car 7G91-12K532-EK level, you do not need to upgrade.
(2) upgrading the TCM with IDS. TCM sub Sport and non-Sport 2 versions. Sport upgrade from an earlier version to the software version number 7G9N-14C337-UE, non-sports version of the software to upgrade from an earlier version number 7G9N-14C337-RF version.
(3) Remove the accelerator pedal stopper (reference).
of the accelerator pedal stopper
Note:
Step 3 (1) are required to complete the above, the default for any step will impact on fuel consumption, engine cooling as well as shift timing of the vehicle. Second and third step is for the production prior to May 1, 2009 car, if the car is the production of a failure after April 30, 2009 car, you do not need to perform these two steps.
(2) must be sufficient battery power, the battery voltage must be higher than the cold 12.5 V (within 1 h before the measurement does not start through the engine, a battery voltage measured shortly after the start of the engine if, the measured value does not accurate). In PCM upgrade process will consume a certain amount of power, the battery voltage will drop if dropped to 12 V or less, it may cause PCM upgrade fails, the vehicle is less than the recommended voltage 12.5 V dc to start the engine to charge the battery 10 min or external charging device.
(3) in the PCM / TCM upgrade process, to ensure reliable connection IDS connection, if present during the upgrade IDS dropped off or the ignition key, will result in PCM / TCM can not continue to be used, this point is important to note.
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