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Home >> Volkswagen >> 1985 >> GTI HT >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Testing >> Cruise Control System Test
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Cruise Control System Test

  1. Remove bi-pressure pump from its housing, and disconnect pump's harness connector.
  2. Press driver's door lock button in "UP" (Open) position. Voltage should exists at pump's harness connector. See 2.
  3. Press driver's door lock button in "DOWN" (Locked) position. Voltage should exists at pump's wiring connector. Refer to Fig. 3.
  4. If above conditions are not as specified, test switch and wiring. See WIRING DIAGRAMS. Door trim panel must be removed to reach master activator.
Fig 1: Open Position Voltage Check Schematic
G50J16435
Fig 2: Locked Position Voltage Check Schematic
G50A16436