OBD-II DTC Code Lookup

Type any diagnostic trouble code (like P0420, P0301, P0171) to get an instant diagnosis with fix instructions.

How to Read OBD-II Codes

PrefixSystemExamples
PPowertrain (engine, transmission)P0300, P0420, P0171
CChassis (ABS, steering)C0035, C0050
BBody (airbags, A/C, seats)B0001, B0100
UNetwork (CAN bus, modules)U0100, U0073

All Available Codes

B0100B1000B1318B1325B1342B1600B2799C0035C0040C0045C0050C0055C0561C1201P0010P0011P0012P0013P0014P0016P0017P0021P0030P0036P0056P0087P0100P0101P0102P0103P0106P0107P0110P0113P0120P0121P0122P0125P0128P0130P0131P0133P0134P0135P0136P0137P0138P0139P0140P0141P0154P0155P0157P0158P0160P0161P0171P0172P0174P0175P0193P0200P0201P0205P0217P0218P0230P0234P0299P0300P0301P0302P0303P0304P0305P0306P0307P0308P0316P0325P0326P0330P0332P0335P0336P0340P0341P0345P0351P0352P0353P0354P0355P0356P0357P0358P0400P0401P0402P0410P0411P0420P0421P0430P0440P0441P0442P0443P0446P0449P0451P0452P0455P0456P0457P0480P0496P0498P0500P0505P0506P0507P0520P0521P0522P0523P0562P0563P0600P0601P0603P0604P0605P0606P0700P0705P0715P0720P0730P0732P0734P0740P0741P0746P0750P0755P0868P1000P1101P1133P1135P1166P1259P1326P1345P1349P1456P1457P1684P1800P2002P2015P2096P2097P2188P2195P2440P2647SYMPTOM-BAD-GAS-MILEAGESYMPTOM-BLACK-SMOKESYMPTOM-FAILED-EMISSIONSSYMPTOM-HARD-SHIFTINGSYMPTOM-HARD-STARTSYMPTOM-LOSS-POWERSYMPTOM-OVERHEATINGSYMPTOM-ROUGH-IDLESYMPTOM-SLIPPING-TRANSSYMPTOM-STALLINGSYMPTOM-TEMP-GAUGE-HIGHSYMPTOM-WHITE-SMOKESYMPTOM-WONT-STARTSYMPTOM‑WONT‑SHIFTU0073U0100U0101U0121U0126U0128U0140U0155U1000