Powertrain control module: Difference between revisions

Revision as of 16:12, 5 September 2012

Revision as of 05:53, 6 October 2012

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As for environmental factors, water is the main thing to avoid. If water gets inside a PCM, it can short circuits and set up irreversible corrosion that ruins electronic connections. Most remanufacturers will not even attempt to repair a PCM if the vehicle it came out of was submerged in a flood. Replacement is the only option. Thermal stress and vibration can form microcracks in circuit boards (which are repairable). This often has more to due with the ruggedness of the circuit design than operation factors in the vehicle itself.

==Unnecessary PCM Returns==

All too often, technicians tend to blame that which they understand least. If an engine is not running right and the cause is not obvious, they may blame the computer. Throwing parts at a problem in an attempt to solve it may be good for the parts business, but when a customer brings a PCM back because it failed to fix their problem, nobody wins. Warranty returns on complicated and expensive components like powertrain control modules are an ongoing problem that costs everyone money.

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{{cite book |first=William B. |last=Ribbens |authorlink=William B. Ribbens |year=2002 |title=Understanding Automotive Electronics}}

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[[Category:Embedded systems]]