Hall Effect Sending Unit Test
NOTE:
Perform this test only if spark is absent on GLI and GTI models. Use Test Lamp (US 1115
) only. Use of "standard" test lamps can damage ignition system components.
- Disconnect Hall control unit (in glove box). Connect Test Lamp (US 1115 ) between terminal 4 and 6 of control unit connector. See Fig 1. Turn ignition on.
- Crank engine and check signal from Hall Effect sending unit. If test lamp LED flickers, sending unit is okay. Testing is completed. If LED does not flicker, disconnect sending unit connector at distributor.
- Connect test lamp to outer connector terminals and turn ignition on. Test lamp LED must light up. If not check voltage supply from ignition control unit to sending unit.
- Push up rubber sleeve on sending unit connector. Connect test lamp between center wire on sending unit connector and battery positive terminal. Crank engine and check signal from sending unit. If test lamp LED flickers, sending unit is okay. If not, sending unit and/or ignition control unit is defective.