DTC U0198-00: Communication Error With Emergency Call Unit/Telematics Communication Unit
U0198-00: (CMU) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Communication error with emergency call unit/telematics communication unit |
| Detection condition |
- The connectivity master unit (CMU) detects a communication interruption or a communication error with emergency call unit/telematics communication unit.
|
| Fail-safe |
|
| Possible cause |
- DTCs are stored in the emergency call unit/telematics communication unit. (See DTC TABLE [TCU]
.)
- Malfunction in wiring harness (including connector/terminal) between battery/lead-acid battery and emergency call unit/telematics communication unit (See
CIRCUIT INSPECTION
.) (See
CONNECTOR INSPECTION
.)
- Malfunction in wiring harness (including connector/terminal) between emergency call unit/telematics communication unit and body ground (See
CIRCUIT INSPECTION
.) (See
CONNECTOR INSPECTION
.)
- Malfunction in wiring harness (including connector/terminal) between emergency call unit/telematics communication unit and connectivity master unit (CMU) (See
CIRCUIT INSPECTION
.) (See
CONNECTOR INSPECTION
.)
- Emergency call unit/telematics communication unit malfunction (Refer to [EMERGENCY CALL UNIT REMOVAL/INSTALLATION]
in service information.) (Refer to TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION
in service information.)
- 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 ON (engine off or on)/main power ON (READY off or on) and wait for 30 s or more.
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Battery/lead-acid battery |
| 2 |
Emergency call unit/telematics communication unit |
| 3 |
Connectivity master unit (CMU) |