Principles of Operation
On vehicles equipped with automatic transaxles, when the ignition switch is turned to the START position and the vehicle is in the NEUTRAL or PARK position, the starter relay switches power to the starter solenoid causing the starter motor to engage.
Vehicles equipped with manual transaxles have a start inhibit switch in the starter control circuit. When the clutch pedal is applied and the ignition switched is turned to the START position, the starter relay switches power to the starter solenoid causing the starter motor to engage.
The starting system is electronically controlled by the passive anti-theft system (PATS). The PATS recognizes the correct electronically coded ignition key and signals the PCM to provide a ground for the starter relay. The energized relay provides voltage to the starter solenoid, thereby allowing the starter motor to activate.
Normal Operation
Under normal operation, the battery junction box (BJB) supplies constant power to the starter relay on circuit 30-BB9 (RD) through fuse F1.8 (30A). On vehicles with automatic transaxles, when the key is placed in the START position with the vehicle in PARK or NEUTRAL, the transmission range (TR) sensor provides power on circuit 50S-BB12 (GY) and the powertrain control module (PCM) provides ground on circuit 31S-BB16 (BK/RD). On vehicles with manual transaxles, when the key is placed in the START position with the clutch pedal depressed, the start inhibit switch provides power on circuit 50-BB12 (GY) and the PCM provides ground on circuit 31S-BB16 (BK/RD). The coil of the relay is energized and sends power to the starter motor on circuit 50-BB12 (GY).
Under normal operation, the battery junction box (BJB) supplies constant power to the starter relay on circuit 30-BB9 (RD) through fuse F1.8 (30A). On vehicles with automatic transaxles, when the key is placed in the START position with the vehicle in PARK or NEUTRAL, the transmission range (TR) sensor provides power on circuit 50S-BB12 (GY) and the powertrain control module (PCM) provides ground on circuit 31S-BB16 (BK/RD). On vehicles with manual transaxles, when the key is placed in the START position with the clutch pedal depressed, the start inhibit switch provides power on circuit 50-BB12 (GY) and the PCM provides ground on circuit 31S-BB16 (BK/RD). The coil of the relay is energized and sends power to the starter motor on circuit 50-BB12 (GY).
Under normal operation, the battery junction box (BJB) supplies constant power to the starter relay on circuit 30-BB9 (RD) through fuse F1.8 (30A). On vehicles with automatic transaxles, when the key is placed in the START position with the vehicle in PARK or NEUTRAL, the transmission range (TR) sensor provides power on circuit 50S-BB12 (GY) and the powertrain control module (PCM) provides ground on circuit 31S-BB16 (BK/RD). On vehicles with manual transaxles, when the key is placed in the START position with the clutch pedal depressed, the start inhibit switch provides power on circuit 50-BB12 (GY) and the PCM provides ground on circuit 31S-BB16 (BK/RD). The coil of the relay is energized and sends power to the starter motor on circuit 50-BB12 (GY).