CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: U1102: Lost Communication with Radar Sensor
U1102 - Lost Communication with Radar Sensor
DESCRIPTION
The millimeter wave radar sensor and driving support ECU transmit the data for general vehicle control and diagnosis function along the
communication line. The driving support ECU determines the curve radius information based on signals from the steering wheel and yaw rate and
acceleration sensor. The driving support ECU transmits the current vehicle speed and curve radius information to the millimeter wave radar sensor.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When the millimeter wave radar sensor is replaced with a new one, adjustment of the radar sensor beam axis must be performed
See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Distance Sensor/Adjustments.
PROCEDURE
1. CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT ECU - MILLIMETER WAVE RADAR SENSOR)
(a) Disconnect the driving support ECU and millimeter wave radar sensor connectors.
Text in Illustration
(b) Measure the resistance according to the value(s) in the table below.
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