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Home >> Chevrolet >> 2004 >> Optra5 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 1.4L DOHC - DTC P0336 To DTC P1385 >> DTC P1182 >> Circuit Description

Circuit Description

An ignition 1 voltage is supplied to the intake manifold tuning (IMT) valve solenoid through a main relay and a fuse when the ignition key is turned ON. The control module controls the IMT solenoid by grounding the control circuit via an internal driver switch. The primary function of the driver is to supply ground for the controlled component. The control module monitors the status of the driver. If the engine control module (ECM) detects an incorrect voltage for the commanded state of the driver, this DTC sets.

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