Toyota Yaris: Headup Display System / Lost Communication With ECM/PCM "A" Missing Message (U010087,U012987,U014087,U015587,U016487,U023A87)

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Vehicle Interior / Meter / Gauge / Display / Headup Display System / Lost Communication With ECM/PCM "A" Missing Message (U010087,U012987,U014087,U015587,U016487,U023A87)

DESCRIPTION

The meter mirror sub-assembly communicates with each ECU via CAN communication.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U010087

Lost Communication With ECM/PCM "A" Missing Message

Diagnosis Condition:

  • The ignition switch is ON
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with ECM

Malfunction Time:

  • 3.6 seconds or more
  • ECM
  • CAN communication system
  • Meter mirror sub-assembly

U012987

Lost Communication With Brake System Control Module Missing Message

Diagnosis Condition:

  • The ignition switch is ON
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with skid control ECU (brake actuator assembly)

Malfunction Time:

  • 3.6 seconds or more
  • Skid control ECU (Brake actuator assembly)
  • CAN communication system
  • Meter mirror sub-assembly

U014087

Lost Communication with Body Control Module Missing Message

Diagnosis Condition:

  • The ignition switch is ON
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with main body ECU (multiplex network body ECU)

Malfunction Time:

  • 5.0 seconds or more
  • Main body ECU (Multiplex network body ECU)
  • CAN communication system
  • Meter mirror sub-assembly

U015587

Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message

Diagnosis Condition:

  • The ignition switch is ON
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with combination meter assembly

Malfunction Time:

  • 5.0 seconds or more
  • Combination meter assembly
  • CAN communication system
  • Meter mirror sub-assembly

U016487

Lost Communication with HVAC Control Module Missing Message

Diagnosis Condition:

  • The ignition switch is ON
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with air conditioning amplifier assembly

Malfunction Time:

  • 5.0 seconds or more
  • Air conditioning amplifier assembly
  • CAN communication system
  • Meter mirror sub-assembly

U023A87

Lost Communication with Image Processing Module "A" Missing Message

Diagnosis Condition:

  • The ignition switch is ON
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with forward recognition camera

Malfunction Time:

  • 5.0 seconds or more
  • Forward recognition camera
  • CAN communication system
  • Meter mirror sub-assembly

PROCEDURE

1.

CHECK FOR DTC (HEADUP DISPLAY SYSTEM)

(a) Check for headup display system DTCs.

Body Electrical > Head Up Display > Trouble Codes

Result

Proceed to

U010087, U012987, U014087, U015587, U016387, U016487, U023A87, U029387 or U111087 is output

A

DTCs are not output

B

None of the above conditions are met

C

A

GO TO CAN COMMUNICATION SYSTEM

B

USE SIMULATION METHOD TO CHECK

C

GO TO DIAGNOSTIC TROUBLE CODE CHART

    Diagnostic Trouble Code Chart

    D..

    Meter / Gauge System

    ..

    Other information:

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