OBDII/EOBD diagnostics trouble codes definition
If your car is equipped with OBD-II or EOBD, you can access over 5,000 generic OBD-II diagnostic trouble codes (DTCs).
These codes cover various vehicle systems, including Powertrain (P0XXX, P2XXX, P34XX), Body (B0XXX), Chassis (C0XXX), and Network/Communication (U0XXX, U2XXX, U3XXX).
Additionally, there are more than 13,500 manufacturer-specific OBD-II codes available for diagnosing issues unique to different car brands and models.
Make sure you're equipped with the right tools to understand and resolve these trouble codes to keep your vehicle running smoothly.
By using these OBD-II codes, you can effectively diagnose issues related to engine performance, safety features, suspension, and more.
Enter code:
BMW:
O2 Sensor Heater Circuit Low Voltage (Bank 2 Sensor 1)
Citroen/Peugeot:
Lack Of HO2S21 Switch - Sensor Indicates Rich
Ford:
Lack Of HO2S21 Switch - Sensor Indicates Rich
Jaguar:
Lack of H02S-21 switch, sensor indicates rich
Land Rover:
Oxygen Sensor Engine Rich *Codes* B U
Lincoln:
Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank 2
Mazda:
HO2S Bank 2 Sensor 1 Signal Above 0.45v (A/F Ratio Too Rich)
Mercedes:
H02S - 21 signal above 0.45v (A/F ratio too rich)
Mercury:
Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank 2
Oldsmobile:
Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank 2
Volkswagen/Audi:
Bank1,Long Term Fuel Trim,Range 2 Leanness Lower Limit Exceeded
Volvo:
Bank1,Long Term Fuel Trim,Range 2 Leanness Lower Limit Exceeded
Subaru:
O2 SENSOR CIRCUIT RANGE/PERFORMANCE (LOW) (BANK 1 SENSOR 1)
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