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
Parking And Back-Up Sensor Control Unit DTCS
| DTC | Description |
|---|---|
| B2601 | Parking sensor CPU error |
| DTC | Description |
|---|---|
| B2602 | Parking sensor EEPROM error |
| B2610 | Front 1st sensor failure |
| B2611 | Front 2nd sensor failure |
| B2612 | Front 3rd sensor failure |
| B2613 | Front 4th sensor failure |
| B2614 | Rear 1st sensor failure |
| B2615 | Rear 2nd sensor failure |
| B2616 | Rear 3rd sensor failure |
| B2617 | Rear 4th sensor failure |
| B2618 | Front 1st sensor data failure |
| B2619 | Front 2nd sensor data failure |
| B261A | Front 3rd sensor data failure |
| B261B | Front 4th sensor data failure |
| B261C | Rear 1st sensor data failure |
| B261D | Rear 2nd sensor data failure |
| B261E | Rear 3rd sensor data failure |
| B261F | Rear 4th sensor data failure |
| B2646 | Front sensor power failure |
| B2647 | Rear sensor power failure |
| B2648 | Front sensor signal short to ground |
| B2649 | Rear sensor signal short to ground |
| B264A | Indicator circuit short to power |
| B264B | Indicator circuit short to ground |
| B264D | Front sensor combination error |
| U0155 | Lost communication with gauge control module |
| U1280 | B-CAN communication bus line error (BUS-OFF) |
| U1281 | Lost communication with MICU (body control module) |
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.