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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:


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Definition of check engine code P1790:

Acura:

TRANS ROM Checksum Error

Chrysler/Dodge/Jeep:

Fault immediately after a shift

Citroen/Peugeot:

TP (Mechanical) Circuit Malfunction

Daewoo:

TCM CHECKSUM FAULT

Ford:

TP (Mechanical) Circuit Malfunction

GM:

Transmission Control Module Checksum

Honda:

Throttle Position (TP) Sensor Circuit Malfunction

Isuzu:

Trans ROM Checksum Error

Jaguar:

Ignition Supply Malfunction

Kia:

Ignition Supply Malfunction

Mercedes:

TP (Mechanical) Circuit

Opel:

CAN data bus,ECM/TCM communication - malfunction detected

Toyota:

ST Solenoid (Shift solenoid valve ST) Circuit Malfunction

Volkswagen/Audi:

Transmission Range Display Circ. Open

Volvo:

Transmission Range Display Circ. Open