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Contents Wiring diagrams Section: 1.8L - Engine Mechanical, Engine Code(s): Awd, Aww, Awp (A4 Platform) All sections

Checking function Volkswagen Jetta IV

1.8L - Engine Mechanical, Engine Code(s): Awd, Aww, Awp (A4 Platform) ~111 words

Checking function

  1. Connect adapter cable, 121-pin V.A.G 1598/31 to engine control module wiring harness and engine control module.
  2. Reconnect connector on Charge Air Pressure Sensor G31.
  3. Use adapter cables from Connector Test Set V.A.G 1594C to connect multimeter to sockets 101 (B+) + 108 (Ground (GND)) for voltage measurement.
  4. Start engine and measure voltage. Specified value: 1.80 to 2.00 V
  1. Increase engine speed by pressing gas pedal suddenly. Specified value: 2.00 to 3.00 V

If specifications are not obtained

  1. Replace Charge Air Pressure Sensor G31.
  2. Check DTC memory.
  3. Read readiness code.
  4. If DTC memory was cleared or engine control module disconnected from voltage supply, readiness code must be regenerated.