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Home >> Volkswagen >> 2003 >> Jetta GLI >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> 2.8L & 3.2L - Generic Scan Tool, Engine Code(S): AFP, BDF, BJS [A4 Platform] (28 Ignition/Glow Plug System - St Generic Scan Tool) >> 28 Ignition/Glow plug system >> Ignition, servicing >> Ignition coil (vehicles with engine code AFP), checking >> Checking activation

Checking activation

WARNING:

Do not touch ignition coil connecting parts or adapter cables during the following test.

Fig 1: Identifying Main Fuse Panel
GW00000097Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE: By removing fuse 32, voltage supply to the fuel injectors is interrupted.
Fig 2: 5-Pin Connector Terminals 1 & 5
GW00001239Courtesy of VOLKSWAGEN UNITED STATES, INC.

Terminals 5 + 2 (ignition output 1),

Terminals 5 + 3 (ignition output 3),

Terminals 5 + 4 (ignition output 2), of disconnected connector.

LED should flicker.

If LED flickers and voltage supply is OK:

If LED does not flicker: