Lexus NX: Seat Heater System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Operation Check
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Dtc Check / Clear
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Front Right Seat Heat Sensor Circuit (B14C0)
- Front Left Seat Heat Sensor Circuit (B14C1)
- Rear Right Seat Heat Sensor Circuit (B14C2)
- Rear Left Seat Heat Sensor Circuit (B14C3)
- Seat Heater Switch Circuit
- Seat Heater for Front Right Seat does not Operate
- Seat Heater for Front Left Seat does not Operate
- Seat Heater for Rear Right Seat does not Operate
- Seat Heater for Rear Left Seat does not Operate
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Precaution
PRECAUTION FOR OPERATION OF ELECTRICAL ITEMS RESTRICTED NOTICE:
If the auxiliary battery voltage is low, the seat heater system may not operate. When "High Power Consumption / Partial Limit On AC/H
Parts Location
PARTS LOCATION ILLUSTRATION *A w/ Rear Seat Heater - - *1 AIR CONDITIONING CONTROL ASSEMBLY *2 SEAT HEATER SWITCH (for Driver Side) *3 SEAT HEATER SWITCH (for Front Passenger
System Diagram
SYSTEM DIAGRAM for Front: for Rear (w/ Rear Seat Heater):
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Power Source Mode does not Change to ON (IG)
DESCRIPTION If the power switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode. Related Data List and Active Test Items Problem Symptom Data List and Active Test Pow
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Lighting system data and the Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions, and then perform repairs. CHECK DLC3 (a) Check the
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