CAN COMMUNICATION SYSTEM(for LHD with Entry and Start System), Diagnostic DTC:U010E/A2

DTC Code DTC Name
U010E/A2 Lost Communication with Reductant Control Module

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
U010E/A2 There is no communication from the urea pump control ECU.

  • Power source or inside of urea pump control ECU

  • Urea pump control ECU

WIRING DIAGRAM

A01XFWXE03

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 (UREA PUMP CONTROL ECU - BATTERY AND BODY GROUND)


    1. A01XKV6E03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Urea Pump Control ECU)

      Disconnect the urea pump control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      s4-52 (E01) - Body ground Always Below 1 Ω
      s4-51 (E02) - Body ground Always Below 1 Ω
      s4-50 (E03) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      s4-30 (BATT) - Body ground Always 11 to 14 V
      s4-11 (+BU1) - Body ground Battery positive (+) voltage applied to terminal s4-9 (UREL) 11 to 14 V
      s4-10 (+BU2) - Body ground Battery positive (+) voltage applied to terminal s4-9 (UREL) 11 to 14 V
      s4-19 (+BU3) - Body ground Battery positive (+) voltage applied to terminal s4-9 (UREL) 11 to 14 V
      s4-1 (+BU4) - Body ground Battery positive (+) voltage applied to terminal s4-9 (UREL) 11 to 14 V
      s4-2 (+BU5) - Body ground Battery positive (+) voltage applied to terminal s4-9 (UREL) 11 to 14 V
      s4-18 (IGSW) - Body ground Engine switch on (IG) 11 to 14 V

    OK

    REPLACE UREA PUMP CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR