Engine Control Module DTC Memory, Checking And Erasing

WARNING: This page is about a different car, the 2006 Volkswagen Jetta and 2005 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Vehicle diagnosis, testing and information system VAS 5051 B, VAS 5052 or VAS 5053

Connect the vehicle diagnosis, testing and information system VAS 5051B as follows:

Fig 1: Identifying Evaporative Emissions Tester Connected To Vehicle

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Connect diagnostic cable connector -2- to Data Link Connector (DLC) in driver's foot well.

-- Start engine and run at idle speed.

Only if engine does not start:

-- Switch ignition on.

Selecting Operating Mode

-- Press button on display for "Vehicle On Board Diagnostic (OBD)".

Selecting Vehicle System

-- Press button "01 - Engine Electronics" on display.

The control module identification with coding -2- as well as Vehicle Identification Number (VIN) in center area and identification of anti theft immobilizer appear on the display.

Fig 2: Locating Control Module Identification With Code Indicated On The Display Selecting Diagnosis Function

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

A print out is available. Press the "print" button if required.

Selecting Diagnosis Function

-- Press button "02 - Check DTC memory" on display.

-- If no malfunction is stored in engine control module, "0 DTC(s) detected" is displayed.

-- If malfunctions are stored in the engine control unit, these are shown one below another on the display.

-- Press the ← key.

-- Press button "05 - Erase DTC Memory" on display.

-- Press function "06 - End Output".