P0490 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P0490 – Exhaust Gas Recirculation Throttle Control Circuit ‘A’ Circuit High

 

P0490 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P0490 Possible Causes

 

Faulty Exhaust Gas Recirculation (EGR) Solenoid,Exhaust Gas Recirculation (EGR) Solenoid harness is open or shorted,Exhaust Gas Recirculation (EGR) Solenoid circuit poor electrical connection

 

P0490 Description

 

The Engine Control Module (ECM) does not detect voltage on the Exhaust Gas Recirculation (EGR) Solenoid circuit.