Click here

CAN COMMUNICATION SYSTEM (for RHD), Diagnostic DTC:U1114

Click here
Click here Click here
DTC Code DTC Name
U1114 Lost Communication with Main Switch Module
Click here

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
U1114 There is no communication from the outer mirror switch assembly.
  • Power source or inside outer mirror switch assembly

  • Outer mirror switch assembly CAN branch wire or connector

  • Outer mirror switch assembly

Click here

WIRING DIAGRAM

Click here

INSPECTION PROCEDURE

Note:

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

Tip:

Operating the power switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

Click here

PROCEDURE


  1. Click here

    PRECAUTION

    Note:

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


  2. Click here

    DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL


    1. Disconnect the cable from the negative (-) auxiliary 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 (-) auxiliary 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).


  3. Click here

    CHECK FOR OPEN IN CAN BUS WIRE (OUTER MIRROR SWITCH ASSEMBLY CAN BRANCH WIRE)


    1. A01H0Q7E01

      Disconnect the outer mirror switch assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      L6-2 (CANP) - L6-3 (CANN) Power switch off 54 to 69 Ω
      Table 1. Text in Illustration
      *a

      Front view of wire harness connector

      (to Outer Mirror Switch Assembly)


  4. Click here

    CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH ASSEMBLY - BATTERY AND BODY GROUND)


    1. A01H0Q7E02

      Connect the cable to the negative (-) auxiliary 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
      Tester Connection Condition Specified Condition
      L6-12 (B) - Body ground Always 11 to 14 V
      L6-11 (IG) - Body ground Power switch on (IG) 11 to 14 V
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L6-1 (E) - Body ground Always Below 1 Ω
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to Outer Mirror Switch Assembly)


  5. Click here

    REPAIR OR REPLACE OUTER MIRROR SWITCH ASSEMBLY CAN BRANCH WIRE OR CONNECTOR (CANP, CANN)

  6. Click here

    REPLACE OUTER MIRROR SWITCH ASSEMBLYClick here

  7. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR