LIN COMMUNICATION SYSTEM, Diagnostic DTC:U0211

DTC Code DTC Name
U0211 Lost Communication with Rear Seat Control ECU RH

DESCRIPTION

This DTC is output when LIN communication between the position control ECU RH and rear power seat module switch stops for 10 seconds or more.

DTC Code DTC Detection Condition Trouble Area
U0211 No communication between the position control ECU RH and rear power seat module switch for 10 seconds or more
  • Position control ECU RH

  • Rear power seat module switch

  • Wire harness

Tech Tips

For vehicles with seat heater system or climate power seat control system only.

WIRING DIAGRAM

A001B8HE11

CAUTION / NOTICE / HINT

Note


  • When using the intelligent tester with the engine switch off to troubleshoot:

    Connect the intelligent tester to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Tech Tips

When DTC U0211, U0246, U1130 and U1131 are output simultaneously, perform troubleshooting for "Rear Side Switch Module LIN Communication Malfunction" first Click here.

PROCEDURE


  1. CLEAR DTC


    1. Delete the DTC Click here.


    NEXT
  2. CHECK FOR DTC


    1. Recheck for DTC Click here.

      Result
      Result Proceed to
      DTC U0211 output reoccurs A
      DTC U0211 output does not reoccur B

    B
    A
  3. CHECK HARNESS AND CONNECTOR (REAR POWER SEAT MODULE SWITCH - POSITION CONTROL ECU RH)

    A001ESJE03

    1. Disconnect the r2*1 or S15*2 module switch connector.

      Tech Tips

      *1: except 4-Passenger with Ottoman

      *2: for 4-Passenger with Ottoman

    2. Disconnect the f38 ECU connector.

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

      Standard resistance
      except 4-Passenger with Ottoman:
      Tester Connection Condition Specified Condition
      r2-12 (MPX) - f38-19 (LIN) Always Below 1 Ω
      for 4-Passenger with Ottoman:
      Tester Connection Condition Specified Condition
      S15-5 (MPX) - f38-19 (LIN) Always Below 1 Ω

    NG
    OK
  4. CHECK POSITION CONTROL ECU RH (BATTERY VOLTAGE AND GROUND)


    1. A001ED6E02
      *1 Front view of wire harness connector: (to Position Control ECU RH)

      Disconnect the f4 and f38 ECU connectors.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      f38-26 (SEL) - f38-25 (SEL2) Always Below 1 Ω
      f4-6 (GND) - Body ground Always Below 1 Ω
      Standard voltage
      Tester Connection Condition Specified Condition
      f38-16 (SYSB) - Body ground Always 11 to 14 V

    NG
    OK
  5. REPLACE POSITION CONTROL ECU RH


    1. Temporarily replace the position control ECU RH with a new or normally functioning one.



    NEXT
  6. CHECK FOR DTC


    1. Delete the DTC Click here.

    2. Recheck for DTC Click here.

      Result
      Result Proceed to
      DTC U0211 output does not reoccur A
      DTC U0211 output reoccurs (for fixed seat type) B
      DTC U0211 output reoccur (for power seat) C
      DTC U0211 output reoccurs (for 4-Passenger with Ottoman) D
      DTC U0211 output reoccurs (for 5-Passenger with Ottoman) E

    A
    B
    C
    D
    E