DTC U3000-47: Connectivity Master Unit (CMU) Internal Malfunction
U3000-47: (CMU) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Connectivity master unit (CMU) internal malfunction |
| Detection condition |
- When the connectivity master unit (CMU) is launched, a communication error with each system is detected and the connectivity master unit (CMU) does not activate.
|
| Fail-safe |
- If the connectivity master unit (CMU) does not restart even after trying to reestablish communication a specified number of times, reset the connectivity master unit (CMU).
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| Possible cause |
- Connectivity master unit (CMU) malfunction (Refer to CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION
in service information.)
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See
CLEARING DTC
.)
- Switch the ignition off/main power OFF.
- Switch the ignition ON (engine off or on)/main power ON (READY off or on) and wait for 30 s or more.
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| System wiring diagram |
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