audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

LDP Via Read Measuring Value Block (Mechanical Throttle)|Page 6667 > < LDP Via Read Measuring Value Block (Mechanical Throttle)|Page 6665
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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.

If LED does not light up:

-

Check electrical wiring from terminal 3 via fuse for fuel pump relay for open circuit.

-

Repair wiring as necessary.

If wiring is OK:

-

Check fuel pump relay:

Checking output wiring (vehicles with electronic throttle control)

LDP Via Read Measuring Value Block (Mechanical Throttle)|Page 6667 > < LDP Via Read Measuring Value Block (Mechanical Throttle)|Page 6665