TT Quattro Roadster L4-1.8L Turbo (AMU) (2002)
Micro-central electronics in
VAG1598/31 test box
driver-side footwell, left, position 4
Terminal
Socket
16
65
-
Repair open circuit or short circuit if necessary.
If no malfunctions are detected:
-
Replace Fuel Pump (FP) relay -J17-.
-
Re-connect Engine Control Module (ECM).
Check voltage supply for Fuel Pump (FP) and components
-
Disconnect fuses S228, S232, S234 and S243 (positions 28, 32, 34 and 43) from fuse holder.
-
Initiate output Diagnostic Test Mode (DTM) and activate Evaporative Emission (EVAP) canister purge regulator valve -N80-. See: Computers
and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Manufacturer's Scan Tool
-
Connect multimeter for voltage measurement to Ground (GND) and to one terminal of the following fuses in the fuse holder.
Fuse
Specified value at one of the
terminals
S228
approx. battery voltage
S232
approx. battery voltage
S234
approx. battery voltage
S243
approx. battery voltage
If specified values are not obtained:
-
Repeat test at another terminal of fuse socket.
If specified values are not obtained again:
-
Check wire connections.
If no malfunctions are detected:
-
Replace Fuel Pump (FP) relay -J17-.
-
Re-insert fuses.