Circuit Description

EGR valve position sensor is mounted on EGR valve and monitors EGR valve pintle position. EGR valve pintle position is dependent upon engine operating conditions. DTC is set if there is an open or short in EGR valve position sensor circuit. Possible causes are:

• EGR valve position sensor circuit is open or shorted.
• Defective EGR valve position sensor.
• Defective ECM.