DTC P1615: Communication Error from Distance Control ECU to ECM [12/2013 - 11/2016]: Description
WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
The driving support ECU assembly and ECM always communicate the data for vehicle general control and diagnosis function to each other via a communication line.
The driving support ECU assembly determines the distance, relative speed, and target deceleration speed based on the signals from the millimeter wave radar sensor assembly, and it sends a control demand signal to the ECM.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P1615 | Communication Error from Distance Control ECU to ECM | While the dynamic radar cruise control is either preparing for operation or operating, communication data from the driving support ECU assembly is logically inconsistent for a certain amount of time, the ECM stores this DTC. |
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