CAN COMMUNICATION SYSTEM (for LHD), Diagnostic DTC:U0210

DESCRIPTION

• For vehicles with a rear power seat control system or seat heater system.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. PRECAUTION

   Note

   After turning the engine switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work Click here.

   
   

   NEXT

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

   
   

   1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

      Note

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

   
   

   NEXT

3. CHECK FOR OPEN IN CAN BUS WIRE (REAR POWER SEAT SWITCH CAN BRANCH WIRE)

   
   
   1. 

      Text in Illustration

      *A	for 4-Passenger with Ottoman
      *B	except 4-Passenger with Ottoman
      *a	Front view of wire harness connector (to Rear Power Seat Switch)

      Disconnect the rear power seat switch connector.

   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for 4-Passenger with Ottoman Tester Connection Switch Condition Specified Condition S15-13 (CANH) - S15-14 (CANL) Engine switch off 54 to 69 Ω
      except 4-Passenger with Ottoman Tester Connection Switch Condition Specified Condition r2-5 (CANH) - r2-4 (CANL) Engine switch off 54 to 69 Ω

   
   

   NG

   REPAIR OR REPLACE REAR POWER SEAT SWITCH CAN BRANCH WIRE OR CONNECTOR (CANH, CANL)

   OK

4. CHECK HARNESS AND CONNECTOR (REAR POWER SEAT SWITCH - BATTERY AND BODY GROUND)

   
   
   1. 

      Text in Illustration

      *A	for 4-Passenger with Ottoman
      *B	except 4-Passenger with Ottoman
      *a	Front view of wire harness connector (to Rear Power Seat Switch)

      Connect the cable to the negative (-) battery terminal.

      Note

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

   2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      for 4-Passenger with Ottoman Tester Connection Condition Specified Condition S15-8 (B) - Body ground Always 11 to 14 V
      except 4-Passenger with Ottoman Tester Connection Condition Specified Condition r2-14 (B) - Body ground Always 11 to 14 V

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for 4-Passenger with Ottoman Tester Connection Condition Specified Condition S15-1 (E) - Body ground Always Below 1 Ω
      except 4-Passenger with Ottoman Tester Connection Condition Specified Condition r2-9 (E) - Body ground Always Below 1 Ω

      Result

      Result	Proceed to
      OK (for 4-Passenger with Ottoman)	A
      OK (for 5-Passenger with Ottoman)	B
      OK (for Power Seat)	C
      OK (for Fixed Seat Type)	D
      NG	E

   
   

   B

   REPLACE REAR POWER SEAT SWITCH Click here

   C

   REPLACE REAR POWER SEAT SWITCH Click here

   D

   REPLACE REAR POWER SEAT SWITCH Click here

   E

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   A

   REPLACE REAR POWER SEAT SWITCH Click here