CAN COMMUNICATION SYSTEM, Diagnostic DTC:U1115

DTC Code DTC Name
U1115 Lost Communication with Tilt and Telescopic Module

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
U1115 There is no communication from multiplex tilt and telescopic ECU.

  • Power source or inside of multiplex tilt and telescopic ECU

  • Multiplex tilt and telescopic ECU

WIRING DIAGRAM

A0059GVE02
*a from Battery
*b ECU-IG NO.3
*c from IG1 Relay
*d Multiplex Tilt and Telescopic ECU

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BATTERY AND BODY GROUND)


    1. A00591NE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

      Disconnect the D45 multiplex tilt and telescopic ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D45-2 (+B) - Body ground Always 11 to 14 V
      D45-9 (ECUB) - Body ground Always 11 to 14 V
      D45-8 (IG) - Body ground Ignition switch ON 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D45-11 (GND) - Body ground Always Below 1 Ω

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR