DTC U264A-13: Ignition Switch [Dash-Electrical Supply Unit (Us)]: Outline
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC U264A:13 [DASH-ELECTRICAL SUPPLY UNIT (US)] DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Ignition switch |
| Detection condition |
- The dash-electrical supply unit detects that the IG1 power supply condition determined from the climate control unit power supply circuit (IG1) is off even though the IG1 power supply condition received via CAN communication from body control module (BCM) is on.
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| Fail-safe |
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| Possible cause |
- IG1 relay No. 2 malfunction
- Climate control unit connector or terminals malfunction
- F47 15 A fuse malfunction
- Short to ground in climate control unit power supply circuit (IG1)
- Open circuit in climate control unit power supply circuit (IG1)
- Climate control unit malfunction
- Dash-electrical supply unit malfunction
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 Courtesy of MAZDA MOTORS CORP.
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