DTC U0191-00: Communication Error With Remote Tuner (Rt)
U0191-00: (CMU) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Communication error with remote tuner (RT) |
| Detection condition |
- The connectivity master unit (CMU) detects a communication interruption (GMSL) or communication error with the remote tuner (RT) (TV tuner).
|
| Fail-safe |
|
| Possible cause |
- DTCs are stored in the body control module (BCM). (Communication error related DTCs are stored.) (See DTC TABLE [BCM]
.)
- DTCs are stored in the connectivity master unit (CMU). (Communication error related DTCs are stored.) (See DTC TABLE [CMU] .)
- Malfunction in wiring harness (including connector/terminal) between remote tuner (RT) and connectivity master unit (CMU) (See
CIRCUIT INSPECTION
.) (See
CONNECTOR INSPECTION
.)
- Remote tuner (RT) malfunction (Refer to REMOTE TUNER (RT) INSPECTION
in service information.)
- Connectivity master unit (CMU) malfunction (software error (USB driver 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
.)
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Connectivity master unit (CMU) |
| 2 |
Remote tuner (RT) |