Passat Wagon L4-1781cc 1.8L DOHC Turbo (ATW) (2000)
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Check wire between test box and 4-pin connector for open circuit according to wiring diagram. Terminal 2 + socket 63, wire resistance: max: 1.5
Ohms
If no malfunctions are found in wires:
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Replace Engine Control Module (ECM).
Aging Check
Oxygen sensor aging, oxygen sensor behind catalytic converter, checking
Special tools and equipment
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V.A.G 1551 scan tool (or VAG 1552 mobile scan tool) with VAG 1551/3B cable
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VAG 1788/10 RPM adjuster
Test requirement
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Coolant temperature must be at least 80 °C, See display group 04, display field 3
Function test
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Connect V.A.G 1551 scan tool (VAG 1552). Start engine and select the Engine Control Module (ECM) using address word 01. (connecting scan
tool and selecting ECM). Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks/Connecting VAG 1551 Scan Tool", See: Testing
and Inspection
Indicated on display:
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -4- to select "Basic Setting" function 04. Press -Q- button to confirm input.
Indicated on display: