Volkswagen Golf / Golf GTI / Jetta. Manual — part 137

01-127

If no electrical or wiring concerns are
found:

- Check wire for open circuit

between test box socket 121 and
2-pin connector terminal 2
referring to Electrical Wiring
Diagrams.

Wire resistance: max. 1.5

- Additionally check wire for short

to battery positive and Ground
(GND).

Specification:

- Check wire for open circuit

between 2-pin connector terminal
1 and Motronic Engine Control
Module (ECM) power supply relay
-J271- referring to Electrical
Wiring Diagrams.

Wire resistance: max. 1.5

- Replace Motronic Engine Control

Module (ECM) -J220-

Page 24-

173

.

- Check DTC memory, repair

Diagnostic Trouble Codes (DTCs)
if necessary and then erase DTC
memory

Page 01-23

, DTC

memory, checking and erasing.

- Erase learned values and adapt

Motronic Engine Control Module
(ECM) -J220- again

Page 24-

182

.

- Read readiness code

Page 01-

146

. If the DTC memory has

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

Page 01-149

.

Output Diagnosis Test Mode (DTM)

01-128

5. Activating Valve -1- for
camshaft adjustment -N205-:

- Press

-button.

Output Diagnosis Test Mode

Valve -1- for camshaft adjustment -N205-

Indicated on display:

Note:

The Valve -1- for camshaft
adjustment -N205- is barely audible
when operating.

If the valve does not click:

The Valve -1- for camshaft

adjustment must click until the
next final control element is
activated by pressing

button.

Note:

Mark connector and component
before pulling connector off.

- Disconnect 2-pin connector from

Valve -1- for camshaft adjustment
-N205- -1-.

Output Diagnosis Test Mode (DTM)

01-129

LED flashes:

- Connect LED test light VAG 1527

to disconneced connector using
adapter cables from VAG 1594.

LED must flash (bright/darker)

- Press -C- button to abort output

Diagnosis Test Mode (DTM).

Output Diagnosis Test Mode was aborted

Indicated on display:

Repair Manual, 2.8 Liter VR6 4V

Engine Mechanical, Engine Code(s):
BDF, Repair Group 15; Valve train,
servicing

Note:

The control housing is only replaced
complete with Valve -1- for camshaft
adjustment -N205- and Camshaft
Adjustment Valve 1 (exhaust) -N318-
.

- Switch off ignition.

- Replace control housing:

- Check DTC memory, repair

Diagnostic Trouble Codes (DTCs)
if necessary and then erase DTC
memory

Page 01-23

, DTC

memory, checking and erasing.

Output Diagnosis Test Mode (DTM)

01-130

- Read readiness code

Page 01-146

. If the

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

Page 01-149

.

LED does not flash:

- Press -C- button to abort output Diagnosis Test

Mode (DTM).

Output Diagnosis Test Mode was aborted

Indicated on display:

Repair Manual, Electrical Equipment; Repair

Group 92

- Switch off ignition.

- Remove wiper arms and cowl panel:

- Connect test box VAG 1598/31 to control

module wiring harness. Engine Control Module
(ECM) -J220- remains disconnected.

Output Diagnosis Test Mode (DTM)