Audi Workshop Service and Repair Manuals

• ‒ Remove connector from injection pump =>Installation position overview, Page 23-3.
• ‒ → Connect multimeter between contacts 9 and 10 to measure resistance.

• Specified value: 12...20 ω

If specified value is not attained:

• ‒ Replace injection start valve (N108)
  =>Page 23-6

If specified value is attained:

• ‒ → Connect multimeter (voltage measurement) between engine earth and contact 10 on the connector.
• ‒ Switch the ignition on.

• Specified value: approx. battery voltage

If specified value is not attained:

• ‒ Connect test box V.A.G 1598/22 to wiring harness for engine control unit =>Page 23-39.

The following wiring connections are to be checked for open circuits and/or short to positive or negative.

• ‒ Rectify any open/short circuit as necessary.