TT Quattro Coupe V6-3.2L (BHE) (2005)
Leak Detection Pump
Specified value
LDP) -V144- terminals
1 + 3
640-720 Ohms
2 + 3
15-17 Ohms
If specified values are not obtained:
-
Replace Leak Detection Pump (LDP) -V144-
If specified values are obtained:
-
Check voltage supply at harness connector of Leak Detection Pump (LDP)
Checking voltage supply
NOTE: Voltage supply for the Leak Detection Pump (LDP) runs via the Fuel Pump (FP) relay.
Requirement
-
Fuse for Leak Detection Pump (LDP) OK
-
Disconnect connector at Leak Detection Pump (LDP).
-
Connect VAG1527B voltage tester as follows:
Electrical harness
Measure to
connector terminal
3
Engine Ground (GND)
-
Operate starter briefly.
-
LED must light
If LED does not light:
-
Check electrical wire connection from terminal 3 via fuse to Fuel Pump (FP) relay for open circuit.
-
Repair open circuit if necessary.
Checking output wire