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) |
|
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.
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- 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.
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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.
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- 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.
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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 | .gif)
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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|
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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Installation
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 NO. 1 ECM BRACKET
89667E -
- -
2 NO. 2 ECM BRACKET
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- -
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