Volkswagen Golf / Golf GTI / Jetta. Manual — part 133

01-111

If the valve does not click:

- Disconnect 2-pin connector from

Secondary Air Injection (AIR)
Solenoid Valve (arrow).

LED flashes:

- Connect LED test light VAG 1527

to disconnected 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 (DTM)

01-112

Output Diagnosis Test Mode was aborted

Indicated on display:

Repair Manual, 2.8 Liter VR6 4V

Engine Mechanical, Engine Code(s):
BDF; Repair Group 26

LED does not flash:

- Switch off ignition.

- Replace Secondary Air Injection

(AIR) Solenoid Valve -N112-:

- Check DTC memory, repair

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

Page 01-23

, DTC

memory, checking and erasing.

- 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

.

- 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:

Output Diagnosis Test Mode (DTM)

01-113

- Connect VAG 1598/31 test box to

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

If no wiring malfunction is found:

- Check wire for open circuit

between test box socket 44 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 Fuel Pump (FP) relay -J17-
referring to Electrical Wiring
Diagrams.

Wire resistance: max. 1.5

- Replace Motronic Engine Control

Module (ECM) -J220-

Page 24-

173

.

Output Diagnosis Test Mode (DTM)

01-114

- 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

.

3. Activating Secondary Air Injection (AIR)
Pump Relay -J299-:

- Press

-button.

Output Diagnosis Test Mode (DTM)

Secondary Air Injection (AIR) Pump Relay -J299-

Indicated on display:

If the Secondary Air Injection (AIR) Pump Motor
V101- does not run at intervals:

Repair Manual, Body Exterior; Repair Group 50

The Secondary Air Injection (AIR) Pump Relay

J299- activates the Secondary Air Injection (AIR)
Pump Motor -V101-, and this must run at
intervals until the next control element is
activated by pressing the

button.

- Remove center insulation tray:

Output Diagnosis Test Mode (DTM)