Motor Feed Circuit

1. This test is performed to determine if slow cranking is caused by high resistance in the starter motor circuit wiring.
2. The voltage drop test can only be performed with the starter motor on the vehicle.
3. Disconnect the wiring from the fuel shutoff solenoid.
4. Connect the positive lead of the 73 Digital Multimeter to the battery positive (+) post, and the negative lead to the starter solenoid M-terminal.
5. Connect a remote starter switch between the starter solenoid S-terminal and the positive battery terminal post.
6. Press the remote starter switch and record the voltage reading.
7. The voltage reading should be 0.5 volt or less. A reading higher than 0.5 volt indicates high resistance.
8. Repeat the test on the starter solenoid B-terminal.
9. If the readings are higher than 0.5 volt, remove the wiring from the starter solenoid.
10. Clean and inspect each wire connector and the starter solenoid terminals.
11. Install the wires onto the starter solenoid and retest.
12. If the reading at the starter solenoid M-terminal is still higher than 0.5 volt or the reading at the B-terminal is lower, perform the starter solenoid test. Starter Solenoid Test
If no change is noted, replace the positive battery cable lead.