1. If the starter does not work when the ignition is turned on, check that the automatic transmission lever is in the neutral or park position (for models with automatic transmission) or the clutch pedal has been depressed (for models with manual transmission).
2. Check battery charging and connecting wires.
3. If the starter runs but the crankshaft does not rotate, check the freewheel.
4. If you do not hear the click of the retractor relay, check the battery charging, the burned-out jumper and the relay itself.
5. Apply power directly to the starter and check starter operation.
6. Disconnect the fuel pump and connect a voltmeter to the battery terminals
7. Turn on the ignition and take the sensor readings. If the voltage is 9 volts or more, but the starter turns the engine crankshaft very slowly, then the starter is defective. If the voltage is less than 9 volts and the starter speed is slow, the solenoid relay contacts are probably burnt, the starter is defective, the battery is dead, or there is a bad wire connection somewhere.