Jetta GLS L4-1.9L DSL Turbo (ALH) (2001)
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Replace Cold Start Injector -N108-, item no. 17 .
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Erase DTC memory of control module for Diesel-Direct fuel injection system, 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, Selecting/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 specified value is obtained:
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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
Vehicles with 80-pin control module
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Check wires between test box and 10-pin connector for open circuit according to wiring diagram.
Terminal 9 + socket 79
Terminal 10 + socket 2
Terminal 10 + socket 28
Wire resistance: max. 1.5 Ohm
Vehicles with 121-pin control module
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Check wires between test box and 10-pin connector for open circuit according to wiring diagram.
Terminal 9 + socket 114
Terminal 10 + socket 1 and 2
Wire resistance: max. 1.5 Ohm
Continuation for all vehicles
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Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinite Ohm
If no malfunctions are detected in wires:
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Replace Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248-.
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Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes