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Home >> Fiat >> 2014 >> 500L Easy, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (DTCS P0218-00 To P1CBF-00 - C635 DDCT Automatic Transmission - 500L) >> Diagnosis And Testing >> P0904-00-Gate Select Position Circuit >> Set Condition

Set Condition

WARNING: This page is about a different variant/trim than selected.

PWM Duty Cycle Fixed Value 

This diagnostic compares the duty cycle of the output PWM signal of the sensor to a high and low threshold. If the duty cycle value is continuously fixed between 4% and 6%, the diagnostic determines that a sensor internal failure has occurred (i.e. the magnet reference is lost).

PWM Duty Cycle Check Range 

This diagnostic compares the duty cycle of the output PWM signal of the sensor to a high and low threshold. If the duty cycle value is more than 90% or less than 10% (but not between 4% and 6%, PWM Duty cycle fixed value), the diagnostic determines that the signal is out of range.