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${ noResults }
openpilot_comma/selfdrive/car/tests
* Ford: log interesting module configuration data Ford ECUs have what is called "As-Built Data" which is configured at the factory/workshop to set what packages/features are enabled on the car. But they also contain vehicle specific information (VIN, make, model, weight, wheel base...), DTC information and driver preferences. I dumped the CAN traffic for the FORScan diagnostic tool to see how it requests this information from the ECUs. <details> <summary>FORScan communication with IPMA (camera)</summary> <pre> {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': '0200'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'TESTER_PRESENT', 'hex': '00'} {'addr': 1806, 'type': 'positive_response', 'service': 'TESTER_PRESENT', 'hex': '00'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f190'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de00'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de00020799dbaa10296516a440000000000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f113'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1\x13JX7T-19H406-CH\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f1134a5837542d3139483430362d434800000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f188'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1\x88JX7T-14F397-AH\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f1884a5837542d3134463339372d414800000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f120'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1 JX7T-14F397-BF\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f1204a5837542d3134463339372d424600000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f121'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f124'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1$JX7T-14F398-AG\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f1244a5837542d3134463339382d414700000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f125'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1%JX7T-14F398-BF\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f1254a5837542d3134463339382d424600000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f126'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f10a'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f111'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1\x11JX7T-14F403-CA\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f1114a5837542d3134463430332d434100000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f18c'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1\x8c182762191\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f18c31383237363231393100000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f162'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f110'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1\x10DS-JX7T-19H406-AD\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f11044532d4a5837542d3139483430362d414400000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': '0202'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'd100'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'd10001'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'd700'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'd70001010101'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'd701'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'd70101020000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'dd01'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'dd010102f8'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'f113'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'data': b'\xf1\x13JX7T-19H406-CH\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 'hex': 'f1134a5837542d3139483430362d434800000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'fd08'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'fd0800000500500100300000000000000000000000300000000000000000200100400300100200001200f00300500000000000000300c00b00400200000000000000000000000000000000200f01201e01501400a00200200400700d02501d01700700e06405005e05503401100a000000002002002001000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'fd09'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'fd09ffec0001fef60002'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de00'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de00020799dbaa10296516a440000000000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DTC_INFORMATION', 'hex': '028f'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DTC_INFORMATION', 'hex': '02ff50019768c253002cc401862cc418862c'} ... skip DTC requests ... {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de00'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de00020799dbaa10296516a440000000000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de01'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de01fd5616db5fffff557fe1f842080000000800000008000000080000000819bfe00f7c00000000000000000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de02'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de02800000008000000080000000800000008337fc00800000008000000080000000800000008337fc0000000000000000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de03'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de03fffc26c3800000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de04'} {'addr': 1806, 'type': 'positive_response', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de04546a8c0000000000'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de05'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de06'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de07'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de08'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de09'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de0a'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de0b'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de0c'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de0d'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} {'addr': 1798, 'type': 'request', 'service': 'READ_DATA_BY_IDENTIFIER', 'hex': 'de0e'} {'addr': 1806, 'type': 'negative_response', 'hex': '2231'} </pre> </details> Using UDS service `READ_DATA_BY_IDENTIFIER`, we can read the As-Built blocks from `0xDExx` with no diagnostic session/security access necessary. I used [Online As-Built databases](https://cyanlabs.net/asbuilt-db/) and various coding spreadsheets shared online to find values we might be interested in using for fingerprinting (both vehicle parameters and identifying the platform). ABS: - Payload tier (Base, Mid Payload Upgrade, Heavy Duty Payload Upgrade...) - Wheelbase - Steering ratio - Cruise Control Mode (Normal, Adaptive) - Enable Stop and Go PSCM: - Enable Lane Keeping Aid - Enable Traffic Jam Assist - Enable Lane Centering Assist IPMA (Q4): - Steering ratio - Wheelbase APIM (Sync 3 and Sync 4): - Steering ratio - Vehicle weight - Wheelbase There are more potentially useful signals which I haven't included although they might not be necessary: - Vehicle (Ford platform code, like "C344" or "C519" - although the source of the mapping from index to code is FORScan and not Ford themselves unless we can find a better source). - Fuel type - Vehicle length/height/front track/rear track - Tire circumference (could be useful for converting wheel speed rad/s to m/s) - Steering angle source (Pinion, Wheel) - Country code (letters, e.g. US, CA or UK) - Transmission type - CAN network architecture - More feature flags (the APIM also stores settings for ACC, LCA, BLIS) The full list of settings I have found is [here](https://github.com/incognitojam/op-notebooks/blob/main/ford/settings.py). * FwQueryConfig: add data_requests * add car_data to CarInterface get_params * Revert "add car_data to CarInterface get_params" This reverts commit |
1 year ago | |
---|---|---|
.. | ||
.gitignore | selfdrive/car | 5 years ago |
__init__.py | Cache FW query (#1025) | 5 years ago |
big_cars_test.sh | add cd for jenkins replacement scripts (#31355) | 1 year ago |
routes.py | use pyupgrade to update to new typing syntax (#31580) | 1 year ago |
test_can_fingerprint.py | Update Python packages and pre-commit hooks (#29974) | 2 years ago |
test_car_interfaces.py | Toyota: only read gas interceptor if we're using it (#31473) | 1 year ago |
test_docs.py | use pyupgrade to update to new typing syntax (#31580) | 1 year ago |
test_fingerprints.py | use pyupgrade to update to new typing syntax (#31580) | 1 year ago |
test_fw_fingerprint.py | Ford: log interesting module configuration data (#31569) | 1 year ago |
test_lateral_limits.py | use pyupgrade to update to new typing syntax (#31580) | 1 year ago |
test_models.py | use pyupgrade to update to new typing syntax (#31580) | 1 year ago |
test_models_segs.txt | HKG CAN FD: Merge Sorento Plug-in Hybrid and Hybrid (#31241) | 1 year ago |