LS 460 AWD V8-4.6L (1UR-FSE) (2009)
(a) Disconnect the X8 sensor connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
Standard resistance:
Standard voltage:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. REPLACE RAIN SENSOR
(a) Temporarily replace the rain sensor with a new or normally functioning one See: Sensors and Switches/Sensors and Switches - Wiper and
Washer Systems/Rain Sensor/Service and Repair/Removal.
NEXT -- Continue to next step.
5. READ VALUE USING TECHSTREAM (LIN COMMUNICATION)
(a) Using the Techstream, read the "Data List".
Body No.5:
OK:
Techstream displays "With" and "OK".
NG -- REPLACE FRONT LIGHT ECU (FRONT CONTROLLER)
OK -- END (RAIN SENSOR IS DEFECTIVE)
Driver Side Switch Module LIN Communication Malfunction
MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM: Driver Side Switch Module LIN Communication Malfunction
Driver Side Switch Module LIN Communication Malfunction
DESCRIPTION
The outer mirror switch monitors the LIN communication bus between the components related to the switches on the driver side seat.
HINT: DTC U1127, U1128 and U1129 are output simultaneously when: 1) there is an open or short in the LIN communication bus between
the switches on the driver side seat, and 2) their LIN communication bus stops.
WIRING DIAGRAM