Volkswagen Golf / Golf GTI / Jetta. Manual — part 231

24-178

Work sequence

- Connect VAG 1551 Scan tool (or VAG 1552).

Then switch ignition on and select Motronic
Engine Control Module (ECM) -J220- with
"Address word" 01. ((VAG 1551 and Motronic
Engine Control Module (ECM) -J220-,
connecting and selecting

Page 01-12

).

Rapid data transfer

HELP

Select function XX

Indicated on display:

- Press buttons -0- and -7- for the function "Code

control module" and confirm entry with -Q-
button.

Code control module

Enter code number XXXXX

(0-32000)

Indicated on display:

Motronic Engine Control Module (ECM) -J220-

24-179

- Enter relevant code number fo vehicle and

confirm with -Q- button.

Coding variations of Motronic Engine Control
Module (ECM) -J220-

Page 24-181

.

022906032BL MOTRONIC ME7.1.1 G 0006

Coding 00032

WSC 00000

The control module identification and coding are

shown on the display, e.g.:

- Press

button.

- Press buttons -0- and -6- for function "End

output" and confirm entry with -Q- button.

- Switch off ignition.

- Check DTC memory, repair malfunctions if

necessary and then erase DTC memory

Page

01-23

.

- Read readiness code

Page 01-146

. If DTC

memory has been erased or Motronic Engine
Control Module (ECM) -J220- was disconnected
from battery positive (B+), readiness code must
be generated again

Page 01-149

.

Function is not recognized or cannot

be performed at the moment.

Indicated on display when a non-authorized code

number has been entered.

Motronic Engine Control Module (ECM) -J220-

24-180

Note:

The code entered, and shown on the display, will

not be used by the Motronic control module until
the ignition has been switched off once. An
incorrect coding leads to:

Engine running Diagnostic Trouble Code (DTC)

s (gear change jolts, load change jerks, etc.)

Increased fuel consumption

Increased exhaust gas emissions

Diagnostic Trouble Code (DTC)s stored in DTC

memory which are not actually present (false
DTCs)

Functions will not be performed (Oxygen

Sensor control, activation of the Evaporative
Emissions (EVAP) Canister Purge system,
etc.).

Reduced service life of transmission

Motronic Engine Control Module (ECM) -J220-

24-181

Motronic Engine Control Module (ECM) -J220-, coding variations

1. position:

vehicle

code

2. position:

emissions

code

3. position:

sensor

code

4. position:

CAN-bus

5. position:

transmission code

0
=

No
coding

0
=

No
coding

0
=

No
coding

0
=

No coding 0

=

No coding

1
=

---

1
=

---

1
=

---

1
=

ABS

1
=

5-speed man.
transmission

2
=

---

2
=

---

2
=

---

2
=

Airbag

2
=

6-speed man.
transmission

3
=

---

3
=

---

3
=

---

3
=

ABS and
airbag

3
=

Autom.
transmission

4
=

---

4
=

---

4
=

---

4
=

---

4
=

---

5
=

---

5
=

---

5
=

---

5
=

---

5
=

---

Note:

The code number is compiled as shown in the following example:

1. position: Vehicle code (no code at present)

0

2. position: Emissions code (no code at present)

0

3. position: sensor code (no code at present)

0

4. position: CAN-bus code (ABS and airbag)

3

5: position: transmission code (6-speed manual transmission)

2

Code number:

0 0 0 3 2

Motronic Engine Control Module (ECM) -J220-