Jetta GL L4-1.9L DSL Turbo (ALH) (2001)
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Check wiring between test box and connector for open circuit according to wiring diagram.
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Wire resistance: max. 1.5 ohms
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Check wires for short to one another, to vehicle Ground and to battery positive (B+).
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Specification: Infinity ohms
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If wiring and the resistance measurement values are OK, replace engine control module. See: Computers and Control Systems/Engine Control
Module/Service and Repair
