Jetta GLS L4-1.9L DSL Turbo (ALH) (2001)
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Switch ignition off.
If the specifications are not obtained:
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Disconnect 2-pin connector from clutch vacuum vent valve switch.
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Measure resistance at switch terminals.
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Specification: Clutch not depressed: max. 10 ohms; Clutch depressed: Infinity ohms
If the specifications are not obtained:
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Replace clutch vacuum vent valve switch.
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Check DTC memory and, if necessary, repair any malfunctions and then erase. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
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Read readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection
If the DTC memory has been erased or the engine control module was disconnected from permanent battery positive (B +), the readiness code
must be generated again. See: Powertrain Management/Computers and Control Systems/Testing and Inspection
If the specifications are obtained:
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Remove wiper arms and plenum cover.
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Connect test box V.A.G 1598/22 to control unit wiring harness.
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Check wiring between test box and connector for open circuit according to wiring diagram.
Terminal 1 + socket 2
Terminal 1 + socket 28
Terminal 2 + socket 46