DTC P1615 Communication Error from Distance Control ECU to ECM: Description
The distance control ECU and ECM always communicate the data for vehicle general control and diagnosis function each other through communication line.
The distance control ECU determines the distance, relative speed, and target deceleration speed based on the signal from the laser radar sensor, and it transmits a control demand signal to the skid control ECU.
COMMUNICATION ERROR FROM DISTANCE CONTROL ECU TO ECM
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1615 | The malfunction code is output when the communication between the 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 distance control ECU becomes logically distant for 0.5 sec. or more. |
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