DTC U0122 Lost Communication with Vehicle Dynamics Control Module: Description
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
The skid control ECU and hybrid vehicle control ECU transmit the data for vehicle general control and diagnosis function along the communication line.
The dynamic laser cruise control system receives information about the laser radar sensor, steering angle sensor and yaw rate sensor from the skid control ECU. It identifies the vehicle in front and follows it keeping a proper vehicle-to-vehicle distance.
When the skid control ECU receives the steering angle signal from the steering angle and the acceleration/deceleration signal from the yaw rate sensor, it transmits them to the hybrid vehicle control ECU.
DTC DETECTION CONDITION - DTC U0122
| DTC No. | DTC Detecting Condition | Trouble Area |
|---|---|---|
| U0122 | The malfunction code is output when communication between the (skid control ECU and hybrid vehicle control ECU is invalid for 0.5 sec. or more while the laser radar sensor is in operation, or the communication from the skid control ECU becomes logically discordant for 0.5 sec. or more. |
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