Volkswagen Passat 1995 Official Factory Repair Manual page 1645

Output Diagnostic Test Mode (DTM), initiating
Output Diagnostic Test Mode
Exhaust Gas Recirculation valve -N18
Output Diagnostic Test Mode
Intake manifold change-over valve -N156
Output Diagnostic Test Mode
Secondary Air Injection pump relay-J299
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
Display will appear as shown:
The EGR valve (N18) (two-way valve)
must click.
If the EGR valve does not click:
- Disconnect 2 pin harness connector
from EGR valve and connect VAG
1527B voltage tester to harness
connector using jumper wires from
the VW 1594 adaptor kit.
If the LED flashes:
- Replace EGR valve (N18) (two-way
valve).
If the LED does not flash:
- Switch off ignition.
- Reconnect EGR valve harness
connector.
- Perform electrical check
51 , test step Fig. 31 , replace
Motronic Engine Control Module
(J220) if necessary.
- Press
button.
Display will appear as shown (ignore
display):
- Press
button.
Activate Secondary Air Injection pump
relay (J299):
- Press
button.
Display will appear as shown:
Page 7 of 9
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6/12/2004