LS 600h V8-5.0L (2UR-FSE) Hybrid (2008)
(a) Disconnect the z56 and z57 switch connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE CURTAIN SWITCH (REAR SEAT HEATER SWITCH)
Rear Right Seat's Seat Heater Does Not Operate
SEAT: SEAT HEATER SYSTEM: Rear Right Seat's Seat Heater does not Operate
Rear Right Seat's Seat Heater does not Operate
DESCRIPTION
When the seat heater switch is operated, the rear power seat switch receives the signal. The rear power seat switch then sends the signal to the rear seat
climate control ECU through LIN communication. The rear seat climate control ECU receives the signal and operates the seat heater.
WIRING DIAGRAM