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Home >> Toyota >> 2018 >> Camry LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (Engine Control System (2GR-FKS) - Circuit Tests (2 Of 2) & Symptom Tests (1 Of 2) (Except Hybrid)) >> SFI System >> VC Output Circuit [06/2017 - ] >> Description

VC Output Circuit [06/2017 - ]: Description

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The ECM constantly generates a 5 V power source voltage from the battery voltage supplied to the +B, +B2 (BATT) terminals to operate the microprocessor. The ECM also provides this power to the sensors through the VC output circuit.

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When the VC circuit has a short circuit, the microprocessor in the ECM and sensors that are supplied power through the VC circuit are deactivated because power is not supplied from the VC circuit. When the system is in this condition, it will not start.