TT Quattro Roadster L4-1.8L Turbo (AMU) (2002)
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Check the following wire connections for open circuit and short circuit to Ground (GND) and B+:
Harness connector
VAG1598/31 test box
Terminal
Socket
1 (shielding)
108
2 (Ground -GND-)
90
3 (signal)
82
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Repair open circuit or short circuit if necessary.
If no malfunctions are found in wires:
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Replace Engine Control Module (ECM).