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DTC P1617 Distance Control ECU Malfunction: Description

In the dynamic radar cruise control system, the hybrid vehicle control ECU and the distance control ECU (cruise control ECU) communicate with one another to control the system based on some designation information. If the designation information of the hybrid vehicle control ECU and distance control ECU is different or distance control ECU is malfunctioning, this DTC is recorded.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
P1617 While dynamic radar cruise control is either preparing for operation or operating, if designation signal from hybrid vehicle control ECU and designation return signal from distance control ECU (cruise control ECU) do not match or distance control ECU is malfunctioning for certain amount of time or more Distance control ECU (Cruise control ECU)
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