relay AUDI A4 1997 B5 / 1.G EVAP Workshop Manual
Page 26 of 65
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Checking voltage supply (all vehicles)
Note:
Voltage supply to the LDP is via the fuel pump
relay.
Test condition:
Fuse for LDP is OK
- Disconnect connector from LDP.
- Connect voltage tester VAG1527 B as follows:Connector terminal
Measure
3 Engine Ground (GND)
- Briefly operate starter motor.
LED must light up.
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ystem, servicin
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11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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Page 27 of 65
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If LED does not light up:
Electrical Wiring Diagrams, Troubleshooting & Component Locations
If wiring is OK:
Repair Manual, Fuel Injection & Ignition, Repair Group 24 - Check electrical wiring from terminal 3 via fuse for fuel pump relay for
open circuit. - Repair wiring as necessary.
- Check fuel pump relay:
Pa
ge 27 of 65 EVAP s
ystem, servicin
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11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.5