Volkswagen Golf 1999 Service Manual page 738

Fuel injection system, servicing
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Fig. 1 Relay assignment in
protective housing (on
left in engine
compartment)
1 - Secondary Air Injection (AIR)
Pump Relay -J299-
2 - Motronic Engine Control Module
(ECM) Power Supply Relay -J271-
Note:
If tools are necessary to pull
relays or control modules out of
the relay plate, first disconnect
battery Ground (GND) strap.
Before disconnecting battery
Ground (GND) strap obtain code
for radios with anti-theft coding.
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