Bosch Starter Motors

Before starting any tests, ensure that battery is fully charged and that all connections are good.
1. Place transmission in Neutral and apply parking brake.
2. Check for battery voltage between starter relay battery terminal and ground.
3. Connect jumper wire on starter relay between battery and ignition terminals.
4. If engine does not crank, connect a second jumper wire to starter relay between ground terminal and good ground and repeat test.
5. If engine cranks in step 4, transmission linkage is improperly adjusted or neutral safety switch is defective.
6. If engine does not crank in step 4, starter relay is defective.