Ignition System Safety Precautions

To avoid the risk of personal injury and/or damage to the fuel injection and ignition system, always observe the following:

• Do not touch or remove ignition wires when engine is running or turning at starter speed.
• Only disconnect and reconnect wires for injection and ignition system, including test leads, if ignition is turned off.

If Testing Equipment Is Needed On Road Tests, Observe The Following: 

• The test and measuring instruments must always be secured to the rear seat and operated by a second person from this location.

If the vehicle is involved in a collision while testing and measuring equipment is operated from the front passenger seat, the person sitting in that seat could be seriously injured when the airbag deploys.

• If engine is to be cranked at starting RPM without starting:

-- Disconnect all 4-pin connectors -arrows- from the ignition coil with power output stage.

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the fuse for the Fuel Pump Control Module -J538- from the fuse panel. For the fuse assignment. Refer to the appropriate WIRING DIAGRAM.