TT Coupe L4-1.8L Turbo (ATC) (2001)
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If wire connection is OK:
-
Check Fuel Pump (FP) relay.
Checking output wire
-
Connect VAG1527B voltage tester as follows:
Electrical harness connector
Measure to
terminal
2
B+
-
Initiate output Diagnostic Test Mode.
-
Press -> button until the following is indicated.
Indicated on display (LED must blink).
Output Diagnostic Test Mode
->
Leak detection pump Tank vent syst.
If LED does not blink:
-
Switch ignition off.
-
Remove windshield wiper arms (unscrew).
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Disconnect cover for plenum chamber and place it on windshield side.
-
Disengage locking lugs and remove control module connector.
-
Connect VAG1598/31 test box to connector of wiring harness. Ground (GND) clip (arrow) at test box must be clipped to the battery negative
terminal. Engine Control Module (ECM) must not be attached.