DTC U264A-13: Power Switch
U264A:13 (DASH_ESU) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Power switch |
| Detection condition |
- The dash-electrical supply unit detects that the IG1 power supply condition determined from the climate control unit power supply circuit is off even though the IG1 power supply condition received via CAN communication from body control module (BCM) is on.
|
| Fail-safe |
|
| Possible cause |
- IG1 relay malfunction (Refer to [RELAY INSPECTION
]
).
- Malfunction in wiring harness (including connector/terminal) between IG1 relay and climate control unit (See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Climate control unit malfunction (Refer to [CLIMATE CONTROL UNIT REMOVAL/INSTALLATION
]
).
- Dash-electrical supply unit malfunction (Refer to [DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION
]
).
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Battery/lead-acid battery |
| 2 |
IG1 relay |
| 3 |
Climate control unit |