DTC P1615 Communication Error from Distance Control ECU to ECM: Description
The cruise control ECU (distance control ECU) and ECM transmit the data for vehicle general control and diagnosis function along the communication line. The cruise control ECU (distance control ECU) determines the distance, relative speed, and target deceleration speed based on the signal from the laser radar sensor, and transmits a control demand signal to the ABS & traction actuator assembly (skid control ECU).
DTC DETECTION CONDITION - TROUBLE AREA TABLE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1615/61 | The malfunction code is output when the communication between the cruise control ECU (distance control ECU) and ECM is invalid for 0.5 sec. or more, while the laser radar sensor is in operation, or the communication from the cruise control ECU (distance control ECU) becomes logically distant for 0.5 sec. or more. |
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