DTC P1617 Distance Control ECU Malfunction: Description
WARNING: This page is about a different car, the 2008 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
In the dynamic laser cruise control system, the ECM and the distance control ECU communicate with one another to control the system based on certain designation information. If the designation information of the ECM and distance control ECU are different or the distance control ECU is malfunctioning, this DTC is recorded.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1617 | While the dynamic laser cruise control is either preparing for operation or operating, if a designation signal from the ECM and a designation return signal from the distance control ECU do not match or the distance control ECU is malfunctioning for 0.3 seconds, the ECM records this trouble code | Distance control ECU |