Test Tables

2002 Volkswagen Jetta GLS Sedan (9M2) L4-2.0L (AVH)SECTION Test Tables

Test table

Notes on test table
^ The socket designations of adapter V.A.G 1598/21 are identical to the control module -J104 contact designations in wiring diagram.
^ If the readings obtained deviate from the specifications, carry out repair measure in the right-hand part of the table.
Electrical Wiring Diagrams, Troubleshooting & Component Locations binder
^ Continuity checks with adapter set V.A.G 1594 A (bridging).
^ If the measured figures only deviate slightly from the specifications, clean sockets and connectors of the testers and adapter cables (with contact spray G 000 700 04) and repeat check. Before replacing components, check wiring and connections and also, particularly for specifications of less than 10 ohms, repeat resistance check on the component.








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Test step 14
1) Diagnostic connection contact assignment.









Test step 15
1) Diagnostic connection contact assignment.









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Test step 21
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.