Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Lost Communication With ECM/PCM "A" Missing Message (U010087,...,U113387)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System(for Gasoline Model) / Lost Communication With ECM/PCM "A" Missing Message (U010087,...,U113387)

DESCRIPTION

The combination meter 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
  • Combination meter 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:

  • 1.0 second or more
  • Skid control ECU (Brake actuator assembly)
  • CAN communication system
  • Combination meter assembly

DTC stored

-

U013187

Lost Communication with Power Steering 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 power steering ECU (rack and pinion power steering gear assembly)

Malfunction Time:

  • 3.6 seconds or more
  • Power steering ECU (Rack and pinion power steering gear assembly)
  • CAN communication system
  • Combination meter assembly

DTC stored

-

U013287

Lost Communication with Suspension Control 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 absorber control ECU

Malfunction Time:

  • 10.0 seconds or more
  • Absorber control ECU
  • CAN communication system
  • Combination meter assembly

DTC stored

w/ Adaptive Variable Suspension System

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
  • Combination meter assembly

DTC stored

-

U015187

Lost Communication with Restraints 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 airbag ECU assembly

Malfunction Time:

  • 5.0 seconds or more
  • Airbag ECU assembly
  • CAN communication system
  • Combination meter 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
  • Combination meter 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
  • Combination meter assembly

DTC stored

-

U018287

Lost Communication with Lighting Control Module Front 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 headlight ECU sub-assembly LH

Malfunction Time:

  • 5.0 seconds or more
  • Headlight ECU sub-assembly LH
  • CAN communication system
  • Combination meter assembly

DTC stored

w/ Cornering Light

U023387

Lost Communication with Side Obstacle Detection Control Module Right 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 blind spot monitor sensor RH

Malfunction Time:

  • 5.0 seconds or more
  • Blind spot monitor sensor RH
  • CAN communication system
  • Combination meter 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
  • Combination meter assembly

DTC stored

-

U032787

Software Incompatibility with Vehicle Security 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 certification ECU (smart key ECU assembly)

Malfunction Time:

  • 5.0 seconds or more
  • Certification ECU (Smart key ECU assembly)
  • CAN communication system
  • Combination meter 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
  • Combination meter assembly

DTC stored

-

U110687

Lost Communication with Electric Parking Brake 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
  • Combination meter 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
  • Combination meter assembly

DTC stored

w/ Intelligent Clearance Sonar System

U111287

Lost Communication with Combination Switch 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 steering sensor

Malfunction Time:

  • 10.0 seconds or more
  • Steering sensor
  • CAN communication system
  • Combination meter assembly

DTC stored

-

U111787

Lost Communication with Accessory Gateway 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 option connector (bus buffer ECU)

Malfunction Time:

  • 5.0 seconds or more
  • Option connector (Bus buffer ECU)
  • CAN communication system
  • Combination meter assembly

DTC stored

-

U113387

Lost Communication with PMN 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 certification ECU (smart key ECU assembly)

Malfunction Time:

  • 3.6 seconds or more
  • Certification ECU (Smart key ECU assembly)
  • CAN communication system
  • Combination meter assembly

DTC stored

-

PROCEDURE

1.

CHECK FOR DTC (METER / GAUGE SYSTEM)

(a) Check for DTCs.

Body Electrical > Combination Meter > Trouble Codes
NEXT

GO TO CAN COMMUNICATION SYSTEM

    Terminals Of Ecu

    Meter / Gauge System(for Hv Model)

    See More:

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    INSTALLATION PROCEDURE 1. INSTALL SIDE AIRBAG PRESSURE SENSOR (a) Check that the engine switch (for Gasoline Model) or power switch (for HV Model) is off. (b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal. CAUTION: Wait at least 90 seconds after disconnecting ...

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