DTC B1321-87: Lost Communication with EMV Missing Message [10/2022 - 10/2023]: Description
The meter mirror sub-assembly receives signals from the radio receiver assembly via local bus communication and displays audio system and navigation system information on the headup display.
This DTC is stored when the meter mirror sub-assembly cannot receive the signal.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory |
|---|---|---|---|---|
| B1321-87 | Lost Communication with EMV Missing Message |
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DTC stored |
| Pattern | DTC Output Part Name (Display on GTS) |
Suspected Area (Malfunction Status) | |||||
|---|---|---|---|---|---|---|---|
| Meter Mirror Sub-assembly (Head Up Display) |
Radio Receiver Assembly (Navigation System) |
Combination Meter Assembly (Combination Meter) |
|||||
| Pattern 1 | B1321-87 | U11D0-87 | U11D1-87 | U11D2-87 | B1321-87 | B1326-87 | Local bus (Open or short) |
| Meter mirror sub-assembly (Internal malfunction) | |||||||
| Combination meter assembly (Internal malfunction) | |||||||
| Radio receiver assembly (Internal malfunction) | |||||||
| Clock assembly (Internal malfunction) | |||||||
| Pattern 2 | B1321-87 | - | U11D1-87 | - | - | - | Local bus (Open) |
| Meter mirror sub-assembly (Internal malfunction) | |||||||
| Pattern 3 | B1321-87 | - | - | - | B1321-87 | - | Radio receiver assembly (Internal malfunction) |
| Pattern 4 | B1321-87 | - | - | - | - | - | Meter mirror sub-assembly (Internal malfunction) |