Control module, TCM (502)
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Control module, TCM (502)
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Controlling shifting points, system pressure and engagement of lock up.
Microprocessor controlled IO device, working memory and one programmable EEPROM read memory.
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Power supply, ground and bus communication
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The control module is powered on pin 33 (A) with +30 voltage and on pins 31 (A) and 22 (A) with +15 voltage. The module is grounded via pins 32 (A) and 23 (A) to grounding point G33T. Bus communication (P-bus) takes place on pins 25-26 (A) and 35-36 (A).
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Pin no.
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Interface
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Description
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33 (A)
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+ 30
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Power supply
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31 (A)
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+ 15
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Power supply
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32 (A)
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ground
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Grounding point G33T
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23 (A)
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ground
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Grounding point G33T
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25 (A)
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Bus
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P-bus
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26 (A)
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Bus
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P-bus
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35 (A)
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Bus
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P-bus
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36 (A)
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Bus
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P-bus
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Important
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When handling the control module, it is important first to create a ground connection between yourself and for example the vehicle engine. Avoid touching the pins of the control module.
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