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.
2021 Honda Odyssey EXFACTORY OEM SERVICE PROCEDURE
Gauge Control Module DTCS
| DTC | Description |
|---|---|
| B1175 | Fuel level sensor (fuel gauge sending unit) circuit malfunction |
| B1176 | Fuel level sensor (fuel gauge sending unit) circuit short |
| B1192 | Gauge control module lost communication with battery sensor ECU (LIN bus connected) |
| U0029 | F-CAN communication line error |
| U0100 | Gauge control module lost communication with ENG/AT |
| U0101 | Gauge control module lost communication with AT |
| U0104 | Gauge control module lost communication with driving support system control unit |
| U0122 | Gauge control module lost communication with VSA modulator-control unit |
| U0127 | Gauge control module lost communication with TPMS control unit (body control module) |
| U0128 | Gauge control module lost communication with EPB |
| U0131 | Gauge control module lost communication with EPS unit |
| U0151 | Gauge control module lost communication with SRS unit |
| U0230 | Gauge control module lost communication with PTG |
| U1100 | Gauge control module lost communication with driving support system control unit |
| U1280 | B-CAN communication bus line error (BUS-OFF) |
| U1281 | Gauge control module lost communication with MICU (body control module) (MICU frame) |
| U1288 | Gauge control module lost communication with PARKSR |
| U128F | Gauge control module lost communication with BSI unit |
| U3000-49 | ECU internal circuit malfunction |
| U3000-51 | Reprogramming error |
Factory Service Tools
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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.
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