Ignition System: Service Precautions

1999 Volkswagen Passat Sedan (3B2) V6-2.8L (AHA)SECTION Service Precautions



Safety Precautions

WARNING!
Be sure the ignition is switched OFF, when:
- Disconnecting ignition wires
- Disconnecting fuel injection system wiring
- Connecting or disconnecting test equipment leads
- Disconnecting the battery
- Washing the engine or engine compartment.

WARNING!
- When driving or riding in an airbag-equipped vehicle, NEVER hold the scan tool or other test equipment in your hands or lap while in motion. Objects between you and the airbag increase the risk of injury in an accident.
- During a test drive in an airbag-equipped vehicle, test equipment must always be fastened to and operated from the rear seat by a second technician.


If the engine is to be turned at starter speed, without starting:




- Disconnect 5-pin connector -1- from power output stage -N122- for ignition coils -2-.




- Remove fuse 28 for fuel pump.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

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