Toyota Avalon Service & Repair Manual: Lost Communication With ECM/PCM "A" Missing Message (U010087,U012987,U014287,U015587,U016387,U016487,U023A87,U110487,U111087)

Toyota Avalon Service & Repair Manual / Vehicle Interior / Meter / Gauge / Display / Headup Display System(for Gasoline Model) / Lost Communication With ECM/PCM "A" Missing Message (U010087,U012987,U014287,U015587,U016387,U016487,U023A87,U110487,U111087)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

Note

U010087

Lost Communication With ECM/PCM "A" Missing Message

Diagnosis Condition:

  • The engine switch is on (IG)
  • 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

DTC stored

-

U012987

Lost Communication With Brake System Control Module Missing Message

Diagnosis Condition:

  • The engine switch is on (IG)
  • 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

DTC stored

-

U014287

Lost Communication with Body Control Module "B" Missing Message

Diagnosis Condition:

  • The engine switch is on (IG)
  • 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

DTC stored

-

U015587

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

Diagnosis Condition:

  • The engine switch is on (IG)
  • 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

DTC stored

-

U016387

Lost Communication with Navigation Control Module Missing Message

Diagnosis Condition:

  • The engine switch is on (IG)
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with radio and display receiver assembly

Malfunction Time:

  • 5.0 seconds or more
  • Radio and display receiver assembly
  • CAN communication system
  • Meter mirror sub-assembly

DTC stored

-

U016487

Lost Communication with HVAC Control Module Missing Message

Diagnosis Condition:

  • The engine switch is on (IG)
  • 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

DTC stored

-

U023A87

Lost Communication with Image Processing Module "A" Missing Message

Diagnosis Condition:

  • The engine switch is on (IG)
  • 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

DTC stored

-

U110487

Lost Communication with Driving Support ECU Missing Message

Diagnosis Condition:

  • The engine switch is on (IG)
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with driving support ECU assembly

Malfunction Time:

  • 5.0 seconds or more
  • Driving support ECU assembly
  • CAN communication system
  • Meter mirror sub-assembly

DTC stored

-

U111087

Lost Communication with Intuitive Parking Assist Module Missing Message

Diagnosis Condition:

  • The engine switch is on (IG)
  • IG power source voltage is 9.5 V or more

Malfunction Status:

  • No communication with clearance warning ECU assembly

Malfunction Time:

  • 5.0 seconds or more
  • Clearance warning ECU assembly
  • CAN communication system
  • Meter mirror sub-assembly

DTC stored

w/ Intelligent Clearance Sonar System

PROCEDURE

1.

CHECK FOR DTC (HEADUP DISPLAY SYSTEM)

(a) Check for DTCs.

Body Electrical > Head Up Display > Trouble Codes
NEXT

GO TO CAN COMMUNICATION SYSTEM

    Terminals Of Ecu

    Utility

    See More:

    Toyota Avalon Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Gasoline Model): Driving Support ECU (C1A01)
    DESCRIPTION If the forward recognition camera detects a malfunction in the internal circuit of the driving support ECU assembly, DTC C1A01 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A01 Driving Support ECU 2 seconds after the engine switch is turned on (IG), a malfuncti ...

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