commaai / commaai/opendbc

2021 China-market Honda CR-V 1.5T is unrecognized (missing T72/TLZ firmware fingerprints)

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bug car
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Python
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Description

### Describe the car bug

A stock comma four running official openpilot cannot identify this vehicle and falls back to MOCK / Dashcam Mode.

Vehicle:
- 2021 Dongfeng Honda CR-V, China market
- 1.5T gasoline, non-hybrid
- Factory Honda Sensing
- Factory ACC and LKAS both work normally
- Honda Bosch A harness

Hardware/software:
- comma four / mici
- Stock official openpilot 0.11.1
- Branch: release-mici
- Commit: 70e157462304e5ce7d03ffbec6cb7f45bf347bb7
- dirty: false

Steps to reproduce:
1. Install comma four with the Honda Bosch A harness.
2. Start the vehicle.
3. openpilot displays “openpilot was unable to identify your car”.
4. The device falls back to MOCK / Dashcam Mode.

The segment-0 rlog shows:
- car_fingerprint: None
- fuzzy: false
- cached: false
- fw_count: 4
- vin_rx_addr: -1
- VIN: 00000000000000000

Firmware returned during the current query:
- EPS, 0x18DA30F1: 39990-T72-H020
- SRS, 0x18DA53F1: 77959-TLA-H340
- Forward camera, 0x18DAB5F1: 36161-TLZ-H120
- Forward radar, 0x18DAB0F1: 36802-TLZ-H130

These four exact firmware strings do not appear in the current commaai/opendbc Honda firmware fingerprint table.

This appears to be missing China-market firmware coverage for the fifth-generation Honda CR-V.

Could someone confirm whether these firmware versions can be added to CAR.HONDA_CRV_5G, and whether the China-market CR-V needs any additional CAN/platform validation?

### Provide a route where the issue occurs

d56b010887bb1bed/00000006--d30d841b74

### openpilot version

0.11.1 (release-mici)

### Additional info

Shared route:
https://connect.comma.ai/d56b010887bb1bed/00000006--d30d841b74

The vehicle’s original Honda Sensing ACC and LKAS both work normally. No VIN is included in this report for privacy. The segment-0 rlog has been downloaded and checked.

Contributor guide

No contributing guide indexed for this repository

Research direction

Start at the Honda firmware fingerprint table entry CAR.HONDA_CRV_5G and compare it with the four firmware strings reported in the segment-0 rlog from route d56b010887bb1bed/00000006--d30d841b74. Verify whether adding this China-market coverage is sufficient and whether CAN/platform validation is needed; done means the vehicle is identified instead of falling back to MOCK / Dashcam Mode.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
embedded-iot
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
65/100

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