Jetta GLX Wagon V6-2.8L (AFP) (2001)
If there is no malfunction in voltage supply:
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Check activation.
Checking activation
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Using adapter cables, connect voltage tester (VAG1527) to Terminals 4 + engine Ground (GND) of disconnected connector for cylinder 1.
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Operate starter and test ignition signal from Engine Control Module(ECM)
LED should flicker.
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Repeat test at connectors for fuel injectors 2 through 6.
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Switch ignition off.
If LED flickers and voltage supply is OK:
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Replace respective ignition coil with power output stage, item 2 .
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4:
Reset/Erase Diagnostic Data
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Generate readiness code.
See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If LED does not flicker:
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Check wires.
Checking wiring
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Connect test box to control module wiring harness, connect test box for wiring test.
See: Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan
Tool/Test Box, Connecting For Wiring Test
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohms