B19F9 – Left Rear Window Switch Circuit Stuck

B19F9 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B19F9 Possible Causes

Faulty Left Rear Window Switch,Left Rear Window Switch harness is open or shorted,Left Rear Window Switch circuit poor electrical connection,Faulty Left Rear Door Module

B19F9 Description

The Left Rear Door Module monitors the Left Rear Window Switch Circuit. The Left Rear Door Module sets the OBDII codes when the Left Rear Window Switch circuit is held below 3.2 volts for over 15 seconds.