Scion 28100-28041 Starter Assembly

To remove the starter motor on a four-cylinder model, disconnect the negative battery terminal cable. Also, remove the air filter housing and intake duct for 2.4L engines 2003 and earlier models, or the Car Batteries for models that are 2004 and later. Next, you should detach the engine cover, air filter housing, intake ducts, and filter bracket on the 2.7L engines. Then, disconnect the electrical connectors and remove the mounting bolts. For V6 models, disconnect the negative battery cable and remove the battery and the battery tray for Highlander models or just the battery depending on the engine models. Once you remove the battery, remove the air filter housing as well as the intake duct on all models. On 1999-2003 V6 models, start by removing the starter motor, and then the electrical connectors. On RX350 models that come with a 2GR-FKS engine, remove the shift control cable, the bracket, and the mounting bolts. On models that are 2004 and later, remove the electrical connectors and the starter mounting bolts. Installation is the reverse of the removal.

When a malfunction occurs in the starting circuit, it is important to check several components. Firstly, make sure that the battery cable clamps are clean and connected to the Car Batteries. Next, check the battery cables, replacing the defective ones. Then, test the battery and replace it if it fails. Also, check the wiring, connections of the starter solenoid, and the mounting bolts. It is also important to check the fusible link and repair the circuit if burned. The operation of the Park/Neutral switch and the starter relay should be checked as well. If necessary, perform a bench test on the Starter Motor and check the cranking voltage and current drawn from the battery. Finally, remove and check the starter/solenoid assembly on the bench, ensuring to rotate the crankshaft pulley if necessary.

Remove the battery from the engine compartment.

Inspect the ignition switch circuit.