Starter motor-in-vehicle check:
Make sure the battery is fully charged and all cables/connections-at the battery, starter solenoid terminals and remote terminals-are clean and secure.
If the starter motor does not function at all when the switch is operated, make sure the shift lever is a neutral or Park. And checked operation of the park/neutral switch. On vehicles equipped with manual transaxle's, check the operation of the clutch start switch.
At the starter motor spends with the engine is not cranking. The overrunning clutch in the starter motor is slipping and the starter motor must be replaced. Also, the ring gear on the drive plate may be worn. Inspected after removing the starter.
If, when the switches actuated, the starter motor does not operate at all but the solenoid clicks, the problem lies with either the battery, the main solenoid contacts or the starter motor is self.
If the solenoid plunger cannot be heard when the switches actuated, the battery may be faulty, the fusible link may be burned, or the starter relay may be faulty or the solenoid itself is defective.
Check the solenoid, connect the remote starter switch between the positive remote battery terminal and the ignition switch wire terminal on the solenoid. If the starter motor operates when the remote switch is activated, the solenoid is okay and the problem is elsewhere in the circuit.
Locate the starter relay in the power distribution center(PDC), Remove the relay and perform the identical test as for the automatic shutdown relay (ASD) and the fuel pump relay. Replace the relay if it is not function as described.
The starter motor still does not operate, remove the starter/solenoid assembly for replacement as a complete unit.
If the starter motor cranks the engine at an abnormally slow speed, first make sure that the battery is fully charged and that all electrical connections are clean and tight. If the engine is partially seized, or has the wrong the Scots of the oil and it, it will crank slowly.
If the engine starts, run the engine until normal operating temperature is achieved, then turn off the engine. Remove the fuel pump relay to keep the engine from starting.
Connect the voltmeter positive lead to the positive remote battery terminal and the negative lead to the negative remote battery terminal.
Crank the engine intake the voltmeter reading as soon as a steady figure is indicated. Do not allow the starter motor to return for more than 15 seconds at a time. A reading of 9 V or more, with the starter motor turning it normal cranking speed, is normal. If the reading is 9 V or more but the cranking speed is slow, the motor, solenoid contacts or circuit connections are faulty. If the reading is less than 9 V and the cranking speed is slow, the starter motor is probably bad.