Work sequence

• Connect Scan Tool V.A.G 1551/1552.
• Start engine and let idle
• Press -0- and -1- to select Address word 01:

  "Engine electronics"

Indicated on display:

Fig 1: Scan Tool Display - Coding Engine Control Module (ECM) (1 Of 4)

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

• Press buttons -0- and -7- for "Code Engine Control Module (ECM) -J248-" and confirm with - Q- button.

Indicated on display:

Fig 2: Scan Tool Display - Coding Engine Control Module (ECM) (2 Of 4)

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

• Enter appropriate code number and confirm with -Q- button.

Coding variants: 

Indicated on display when a non-authorized code number has been entered.

Fig 3: Scan Tool Display - Coding Engine Control Module (ECM) (3 Of 4)

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Scan Tool (ST) V.A.G 1551 display will show Engine Control Module (ECM) -J248- identification, e.g.:

Fig 4: Scan Tool Display - Coding Engine Control Module (ECM) (4 Of 4)

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

• Press --> button.
• Press buttons -0- and -6- for the "End output" function and confirm input with the -Q- button.
• Switch ignition off and on again.

• Check DTC memory, if necessary, repair any DTCs and erase DTC memory. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING .
• Display readiness code, see READINESS CODE, DISPLAYING . If DTC memory has been erased or Engine Control Module (ECM) -J248- was disconnected, readiness code must be reset. See READINESS CODE, SETTING .