DTC P1615: Communication Error from Distance Control ECU to ECM: Description
WARNING: This page is about a different car, the 2012 Lexus GX 460. However, it is still accessible from the selected car via links, so may be relevant.
The driving support ECU receives information about the area in front of the vehicle from the millimeter wave radar sensor and then sends brake control demand signals (deceleration demand) and diagnosis signals, such as signal indicating the millimeter wave radar sensor assembly is dirty or malfunctioning, to the ECM.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1615 | While the vehicle speed is 50 km/h (30 mph) or more with the cruise control switch on, communication data from the driving support ECU is logically inconsistent for 0.15 seconds or more. |
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