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:

    Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Inspection


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    Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: ECM Communication Stop Mode


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    The front and side supplemental restraint systems (SRS) include different types of air bags. Please verify the different types of air bags which are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed.

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