TT Quattro Coupe L4-1.8L Turbo (BEA) (2003)
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Check wire connection from terminal 1 of connector via fuse S243 (in fuse holder, socket 43) to Fuel Pump (FP) relay for open circuit:
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Check Fuel Pump (FP) relay. See: Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Fuel Pump
(Fp) Relay -J17-, Testing and Activating
Checking activation
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Connect VAG1527B voltage tester as follows:
Harness connector
Measure to
Terminal
2
B+
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Initiate output Diagnostic Test Mode (DTM) and activate Secondary Air Injection (AIR) solenoid valve -N112-. See: Computers and Control
Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Manufacturer's Scan Tool
Indicated on display
Output Diagnostic Test Mode
->
Secondary air injection solenoid valve -N112
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LED must blink.
If LED does not blink or if it remains constantly lit:
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Connect VAG1598/31 test box at wiring harness to ECM, do not connect ECM. See: Computers and Control Systems/Testing and Inspection/Scan
Tool Testing and Procedures/Scan Tool Testing/Scan Tool Connecting and Initial Checks/Wiring and Component Testing Using VAG1598/31
Test Box