Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHONDA2020CIVIC SPORT, 4D HATCHBACK, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXAUTOMATIC LIGHTING DTCSAUTOMATIC LIGHTING CONTROL UNIT
2020 Honda Civic Sport, 4D Hatchback, Standard Trans
Automatic Lighting Control Unit
2020 Honda Civic Sport, 4D Hatchback, Standard TransSECTION Automatic Lighting Control Unit
| DTC | Description | DTC type |
|---|---|---|
| B1575 | Auto light sensor error | Internal error |
| U1280 | B-CAN communication bus line error (BUS-OFF) | Loss of communication |
| U1281 | Auto light control unit lost communication with MICU (body control module) | Loss of communication |
| U128D | Auto light control unit lost communication with gauge control module | Loss of communication |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.