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Home >> Fiat >> 2014 >> 500L Easy, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (DTCS P1CC0-00 To U1508-00 - C635 DDCT Automatic Transmission - 500L) >> Diagnosis And Testing >> P1D61-00-Internal Controller Power Supply Failure >> Theory Of Operation

Theory Of Operation

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This diagnostic detects if the power supply to valve actuators is shorted to ground or to battery. The diagnostic also compares this power supply to the Safety Micro Processor (SMP) power supply. When the valve actuators power supply has an electric fault or its voltage deviates from the SMP power supply, the diagnostic will be considered failing.

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