Sensor Power Supply2 Circuit: Description

ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively. Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously in the sensors belonging to the same group as the short-circuited sensor.

Sensor power supply 1

• CMP sensor (PHASE) (bank 1)
• Exhaust valve timing control position sensor (bank 1)
• Manifold absolute pressure (MAP) sensor
• Engine oil pressure sensor

Sensor power supply 2

• CKP sensor (POS)
• Mass air flow sensor (bank 1) (bank 2)
• Battery current sensor
• CMP sensor (PHASE) (bank 2)
• Exhaust valve timing control position sensor (bank 2)
• Refrigerant pressure sensor