Hall Sender Switching Function

To check Hall sender function, check its ability to switch the primary circuit. Remove the coil wire from the center of the distributor and connect it to ground with a jumper wire. With the Hall sender connected, carefully push back the rubber connector boot to expose the back of the wire connections. Connect an LED test light between the center terminal and the positive (+) battery terminal, as shown in Fig. 3-6. When the starter is actuated, the LED should flicker. If there is no reaction, the Hall sender is defective and should be replaced as described in 5.3 Disassembling and Assembling Distributor.

Fig. 3-6.

Hall sending unit switching function being tested with LED test light.