What is a reductant injection valve?

What is a reductant injection valve?

The reductant injector is used to reduce emissions gases exiting the exhaust by injecting either air or chemicals depending on the usage and vehicle. When the ECU detects the fault in the reductant injector circuit, it will set the P2047 code and the Check Engine Light will be displayed on the dashboard.

What is DTC in Mercedes Benz?

A fault code, or Diagnostic Trouble Code (DTC) are system code errors that tell your Mercedes what is malfunctioning. In newer Mercedes models, the fault code will trigger a dash light or error message, alerting you to get your Mercedes inspected and diagnosed.

What code is P2047?

The P2047 code indicates at the presence of a defect in the reductant injection valve circuit, bank 1 unit 1. The emission gases exiting the exhaust are reduced using the reductant injector by injecting either air or chemicals which depend on the usage and the vehicle.

How do you reset the check engine light on a Mercedes c200?

Locate the reset button on the left side of the instrument cluster. Press the reset button and hold it until the display reads “To reset: Press reset button for 3 seconds.” Push the reset button again and hold the button in until the display indicates that the system has been reset.

How do you reset the code on a Mercedes?

The first way to reset a check engine light on your Mercedes-Benz is with a scanner. If you have one, simply plug it in, read the related codes, and press “clear” or “reset.” So long as the code issue has been resolved, it should go off.

What does it mean stop vehicle leave engine running?

Common causes of stop vehicle leave engine running: Keeping ignition on with the engine turned off. Leaving the lights on – interior or exterior. Parasitic current draw draining the battery when the vehicle is parked. The battery is no longer holding a charge, test and replace the battery.

What is the fault code for Mercedes-Benz P2004?

P2004 Component N15/3 (ETC control module) is faulty. P2005 Component N15/3 (ETC control module) is faulty. P2005-032 refrigerant temperature rise too slow. [P0128]

Which is faulty P2002 or P2004 control module?

P2002 Component N15/3 (ETC control module) is faulty. P2003 Component N15/3 (ETC control module) is faulty. P2004 check external voltage supply.Control of holding relay K40/7km (relay CDI) cutoff too early. P2004 check external voltage supply.Relay (diesel engine voltage supply relay) cutoff too late.

Where are the fault codes on a Mercedes Benz?

This is a list of Mercedes-Benz specific Diagnostic Trouble Codes (DTC) or also known as engine fault codes. Please note that there are Check Engine / Service Engine / CEL fault codes which are stored in the Engine Control Unit (ECU). These codes can be read and erased with a simple OBD2 code reader, listed under yellow column below.

What is the wrong codeword for a Mercedes pressure control valve?

P1617 EEPROM or incorrectly coded Codeword is incorrect or missing. P1617 EEPROM or incorrectly coded MT has been coded as AT. P1630 Drive authorization Key used is inhibited. P1663 Y74 (Pressure control valve) The signal voltage is too high. P1663 Y74 (Pressure control valve) The signal voltage is too low.