Hall Sender
- Disconnect coil wire from distributor cap. Using a jumper wire, ground coil wire. Disconnect hall sender-to-ICU harness connector.
- Connect multimeter between terminals No. 1 and No. 3 of connector "D". See Fig 1
. Turn ignition on. Reading should be at least 9 volts. If not to specification, repair break in wiring. Turn ignition off.
- If step 2) tests satisfactory, push back rubber boot on hall sender connector. Connect multimeter between terminals No. 1 and No. 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 is aligned with hall sender.
- Reading should be between .0-.5 volts. Turn ignition off. If reading was not to specification, replace hall sender. If reading was correct, check wiring between hall sender connector and ICU.
- Remove ICU cover from left side kick panel. Disconnect harness connector from ICU and Connector "D" from distributor. Check for continuity between distributor connector pins and appropriate 25-pin ICU connector pins. For correct pin-to-pin reference, See Fig 2
. Also see WIRING DIAGRAMS - CEC
article in this section.
- If hall sender and wiring between connector "D" and ICU connector tested satisfactory, replace ICU. See Fig 1
.
Courtesy of AUDI OF AMERICA, INC.
Courtesy of AUDI OF AMERICA, INC.