Hall Sender
- Disconnect coil wire from distributor cap. Use a jumper wire to ground coil wire. Disconnect Hall sender-to-ICU harness connector.
- Connect multimeter between terminals No. 1 and 3 of connector "D". See Fig 1
. Turn ignition on. Reading should be at least 9 volts. If reading is not as specified, repair break in wiring. Turn ignition off. If reading is as specified, go to next step.
- Push rubber boot on hall sender connector back. Connect multimeter between terminals No. 1 and 2. Reconnect Hall sender-to-ICU harness connector.
- Turn ignition on. Remove ignition distributor cap, rotor and dust cap. DO NOT
allow spring clips to fall inward toward trigger wheel.
- Using Wrench (2079), turn crankshaft until trigger wheel is clear of hall sender. Multimeter should read a minimum of 4 volts. Turn crankshaft until trigger window aligns with hall sender.
- Reading should be 0-.5 volt. Turn ignition off. If reading is not as specified, replace hall sender. If reading is as specified, check wiring between Hall sender connector and ICU.
- Remove ICU cover from left side kick panel. Disconnect harness connector from ICU. Disconnect connector "D" from distributor. Check continuity between distributor connector terminals and appropriate 25-pin ICU connector terminals. See appropriate WIRING DIAGRAMS article.
- If Hall sender and wiring between connector "D" and ICU connector tested okay, replace ICU.
Courtesy of AUDI OF AMERICA, INC.
Courtesy of AUDI OF AMERICA, INC.