Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Lost Local Communication with MET Missing Message (U11D087)

DESCRIPTION

These DTCs are stored when the radio and display receiver assembly detects a communication malfunction with the combination meter assembly.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

Priority

U11D087

Lost Local Communication with MET Missing Message

Communication malfunction between radio and display receiver assembly and combination meter assembly for 30 seconds or more

(2 trip detection logic)

  • Open or short in local bus circuit
  • Harness or connector
  • Combination meter assembly
  • Radio and display receiver assembly

Navigation System

A

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed.

    Click here

  • Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) auxiliary battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here

    HINT:

    When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

    Click here

  • When replacing the combination meter assembly, make sure to replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in the combination meter assembly will not match the information from the vehicle and a DTC may be stored.
  • When replacing the combination meter assembly, make sure to update the ECU security key.

    Click here

HINT:

  • Before disconnecting related connectors for inspection, push in on the connector body to check that each connector is not lose or disconnected.
  • When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the I253 radio and display receiver assembly connector.

(b) Disconnect the I5 combination meter assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I253-11 (CNH1) - I5-32 (TX+)

Always

Below 1 Ω

I253-12 (CNL1) - I5-15 (TX-)

Always

Below 1 Ω

I253-11 (CNH1) - Body ground

Always

10 kΩ or higher

I253-12 (CNL1) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Disconnect the cable from the negative (-) auxiliary battery terminal.

(b) Disconnect the I5 combination meter assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I5-15 (TX-) - I5-32 (TX+)

Negative (-) auxiliary battery terminal disconnected

108 to 132 Ω

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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