Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
5Original wording in English
FORD
Some 2018-2020 F-150 vehicles equipped with a 5.0L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0172, P0173, P0174 and/or P0175. This may be due to incorrect flex fuel learning, which is often caused by customer refueling habits or a stuck open evaporative emissions pur…
UNKNOWN
OXYGEN SENSOR CONNECTION ISSUE. CHECK ENGINE LIGHT COME ON AND THE DRIVER MAY ALSO NOTICE MORE ROUGH RUNNING OF THE ENGINE. P0172/P0173/P0175 MAY BE EXHIBITED. LAND ROVER RANGE ROVER. *TT
LINCOLN
NO START, ROUGH IDLE, OR MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES (DTCS) P0171, P0174, P0173, P2195, P2197, P0420, P0301, P0302, P0303, P0304, P0305, P0306. *TT
MERCEDES-BENZ
AIR MASS SENSOR REPLACEMENT DUE TO CHECK ENGINE LIGHT COMING ON AND CODES P2004, P0170 AND P0173. *TT *MJ
Check vehicle applicability
21A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Fuel Trim Malfunction (Bank 2)
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.