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OBDII/EOBD diagnostics trouble codes definition

If your car supports OBD II or EOBD, then you can already use almost 5000 generic OBDII codes. These codes are from PowerTrain series (P0XXX, P2XXX, P34XX), Body Series (B0XXX), Chassis series (C0XXX), Network series (U0XXX, U2XXX, U3XXX).

Also there is a list of more than 13500 additional manufacturer specific codes.

Supported manufacturers with specific OBD2 codes:


Enter code:
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P
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Definition of check engine code P1909:

Citroen/Peugeot:

Trans Temp Sensor Circuit Open or Shorted to Pwr or Gnd

Ford:

Trans Temp Sensor Circuit Open or Shorted to Pwr or Gnd

Volkswagen/Audi:

Data bus,ECM 1/2 - no signal from ECM 1