Places for mounting the starting circuit
1. Starter; 2. FL-ALT insert (80A); 3. Park/Neutral switch; 4. Insert FL-AM1 (40 A); 5. Traction relay switch; 6. Auxiliary relay
1. If the starter motor does not turn at all when the key is turned, make sure the transmission lever is in neutral.
2. Make sure the battery is charged, check the cleanliness of the cables on the battery and on the starter traction relay.
3. If the starter motor engages when the key is turned but the crankshaft does not turn, the starter overrunning clutch is jammed. In this case, the starter assembly must be replaced.
4. If the starter motor does not rotate when the key is turned, but the traction relay clicks, then the traction relay contacts, battery and starter motor are faulty (or hard crankshaft).
5. If, when the starter is turned on, the click emitted by the relay is not heard, then the reasons for the failure may be a battery malfunction, a blown fuse (open circuit), malfunction of the auxiliary starter relay, or the traction relay itself.
6. To check the traction relay, close the terminal for connecting the battery with a jumper () and an output for the wire from the ignition key. If the starter motor starts, then the traction relay is OK, and the ignition switch, starter auxiliary relay, traction relay switch, or wiring are faulty.
7. If the starter motor still does not start, then remove the starter assembly with the traction relay for disassembly, inspection and repair.
8. If the starter turns the crankshaft, but at a very low speed, then first check the battery state of charge and the reliability of the connections. The starter will rotate the engine at low speed also in cases where the crankshaft rotates hard or too viscous oil is poured into the engine.
9. Warm up the engine, then disconnect the high-voltage coil wire from the distributor cap and connect to ground.
10. Connect a voltmeter, turn on the starter and read the steady state voltmeter reading. The voltage on the battery at normal crankshaft speed should be about 9 V.
11. If the battery voltage is equal to or greater than 9 V, and the crankshaft speed is low, then the starter motor is faulty.
12. If the voltage is less than 9 V at a low rotation speed, then the probable causes are the burning of the contacts of the traction relay, a malfunction of the starter motor, and self-discharge of the battery.