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2019 Honda Civic — Misfire
Multi-DTC cross-correlation: P0301 + P0171 + P0420
2021 Ford F-150 — ADAS Recalibration
Windshield replacement triggers FCW/LDW camera calibration alert
2018 Toyota Camry — Catalyst (no freeze frame)
P0420 alone, no freeze frame captured — confidence penalty in action
2022 Tesla Model 3 — ADAS-equipped EV
ADAS suite without combustion DTCs — exercises the EV path
Ambiguous — single P-code, sparse data
P0171 alone on a 2015 Civic, no freeze frame, no PIDs — model should lower confidence
Vehicle
VIN (17 characters)
+ Add manual override (decoded fields are wrong / incomplete)
Customer Complaint
Optional. What did the driver say was wrong? Specific symptoms help Claude ground its reasoning.
Diagnostic Trouble Codes
required
+ Add another DTC
Freeze Frame
Snapshot of parameters at fault time. Skip if not captured.
+ Add freeze frame parameter
Live PID Data
Current readings (RPM, coolant, fuel trim, etc). Skip if not captured.
+ Add live PID
Repair Type
Optional. Triggers ADAS calibration alerts when relevant (e.g. windshield replacement → forward-camera recal).
— None —
Windshield replacement
Wheel alignment
Suspension work
Battery disconnect
Bumper replacement
Camera replacement
Radar replacement
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