ACTIVE NOISE CONTROL SYSTEM, Diagnostic DTC:U010087, U012987, U014087, U016487, U029387, U115187

DTC Code DTC Name
U010087 Lost Communication With ECM/PCM "A" Missing Message
U012987 Lost Communication With Brake System Control Module Missing Message
U014087 Lost Communication with Body Control Module Missing Message
U016487 Lost Communication with HVAC Control Module Missing Message
U029387 Lost Communication With Hybrid Powertrain Control Module Missing Message
U115187 Lost Communication with Hybrid Powertrain Control Module (C-Bus) Missing Message

DESCRIPTION

These DTCs are stored when a malfunction occurs in the CAN communication circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
U010087 Lost Communication With ECM/PCM "A" Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the engine system for 1 second or more continuously 3 seconds after the power switch is turned on (IG)* CAN communication system
U012987 Lost Communication With Brake System Control Module Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the brake system for 1 second or more continuously 3 seconds after the power switch is turned on (IG)* CAN communication system
U014087 Lost Communication with Body Control Module Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the main body ECU for 3 seconds or more continuously 3 seconds after the power switch is turned on (IG)* CAN communication system
U016487 Lost Communication with HVAC Control Module Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the air conditioning system for 25 seconds or more continuously 3 seconds after the power switch is turned on (IG)* CAN communication system
U029387 Lost Communication With Hybrid Powertrain Control Module Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the HV system for 1 second or more continuously 3 seconds after the power switch is turned on (IG)* CAN communication system
U115187 Lost Communication with Hybrid Powertrain Control Module (C-Bus) Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the HV system (chassis bus) for 6 second or more continuously 3 seconds after the power switch is turned on (IG)* CAN communication system

Tech Tips

*: Malfunction monitoring is not performed during the following conditions to prevent erroneous detection.


  • The auxiliary battery voltage is less than 9.5 V.

  • Before 3 seconds have elapsed after auxiliary battery voltage has returned to normal.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Active Noise Control > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Active Noise Control > Trouble Codes
      OK
      DTC U010087, U012987, U014087 and U016487 are not output
      Result
      Proceed to
      OK
      NG

      Tech Tips


      • If CAN communication system malfunction DTCs are output, they may also be output for other systems.

      • If the CAN communication system has been checked and repaired in other systems, the DTC will not be output after rechecking for DTCs.

      • If the DTC is output frequently, duplicate the conditions that cause a malfunction and perform the check again, even though the DTC was not output after rechecking for DTCs.

        Click here


    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here