Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,U013187,U014087,U015587,U016387)

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Heating / Air Conditioning / Air Conditioning System (for Hev Model) / Lost Communication with ECM/PCM "A" Missing Message (U010087,U013187,U014087,U015587,U016387)

DESCRIPTION

These DTCs are stored when the CAN communication system is malfunctioning.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

U010087

Lost Communication with ECM/PCM "A" Missing Message

Diagnosis Condition:

  • IG voltage 8.5 V or higher

Malfunction Status:

  • No communication with ECM

Detection Time:

  • Continuously for 10 seconds or more
  • CAN communication system
  • ECM
  • Air conditioning amplifier assembly

Memorized

U013187

Lost Communication with Power Steering Control Module Missing Message

Diagnosis Condition:

  • IG voltage 8.5 V or higher

Malfunction Status:

  • No communication with power steering ECU assembly

Detection Time:

  • Continuously for 10 seconds or more
  • CAN communication system
  • Power steering ECU assembly
  • Air conditioning amplifier assembly

Memorized

U014087

Lost Communication with Body Control Module Missing Message

Diagnosis Condition:

  • IG voltage 8.5 V or higher

Malfunction Status:

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

Detection Time:

  • Continuously for 10 seconds or more
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Air conditioning amplifier assembly

Memorized

U015587

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

Diagnosis Condition:

  • IG voltage 8.5 V or higher

Malfunction Status:

  • No communication with combination meter assembly

Detection Time:

  • Continuously for 10 seconds or more
  • CAN communication system
  • Combination meter assembly
  • Air conditioning amplifier assembly

Memorized

U016387

Lost Communication with Navigation Control Module Missing Message

Diagnosis Condition:

  • IG voltage 8.5 V or higher

Malfunction Status:

  • No communication with radio and display receiver assembly

Detection Time:

  • Continuously for 10 seconds or more
  • CAN communication system
  • Radio and display receiver assembly
  • Air conditioning amplifier assembly

Memorized

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Check for DTCs.

Body Electrical > Air Conditioner > Trouble Codes

Result

Proceed to

DTC U010087, U013187, U014087, U015587 or U016387 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 DTC CHART

    READ NEXT:

     Blower Motor Circuit

    DESCRIPTION The blower motor with fan sub-assembly is operated by signals from the air conditioning amplifier assembly. Blower motor speed signals are transmitted in accordance with changes in the dut

     Ambient Temperature Display System

    DESCRIPTION The thermistor assembly is installed in front of the cooler condenser assembly to detect the ambient temperature, which is used to control the automatic air conditioning system. The thermi

     A/C Switch Indicator does not Turn On

    DESCRIPTION If none of the switch indicators on the air conditioning control assembly illuminate, the following factors may be the cause. Symptom Factor A/C switch indicator does not i

    SEE MORE:

     Initialization

    INITIALIZATION Inspection After Repair Perform Learning Value Reset and Idle Learning after replacing or servicing parts related to engine operation. Details on procedures required are indicated by an asterisk and a number, and are explained in detail following the table. Part Replaced Engin

     Freeze Frame Data

    FREEZE FRAME DATA FREEZE FRAME DATA HINT: The battery ECU assembly records vehicle and driving condition information as freeze frame data the moment a DTC is stored. It can be used for estimating or duplicating the vehicle conditions that were present when the malfunction occurred. To confirm the

    © 2020-2024 Copyright www.tcorollacross.com