Test B: Unusual Starter Noise

PINPOINT TEST B: UNUSUAL STARTER NOISE

B1-B2:

B2-B3:

Normal Operation
Under normal operation, voltage is supplied to the ignition switch through circuit 1715 (RD). When the ignition switch is turned to the START position, voltage is sent to the smart junction box fuse through circuit 1522 (DG). From the fuse, voltage is sent to the starter relay coil through circuit 1785 (LG/VT). Ground for the starter relay coil is provided from the PCM through circuit 329 (PK). Voltage is supplied to the starter relay switch through circuit 1786 (BN/PK). When the relay is energized, voltage is sent to the starter motor through circuit 33 (WH/PK).

Possible Causes
- Starter motor
- Ring gear