OBD System Description - EGR System Monitor

OBD System Description - EGR System Monitor

System Description / Monitoring Procedure

To monitor electric controlled EGR system, the system measures pressure change caused by switching of the EGR valve during deceleration condition and also measures the voltage of EGR valve stepping motor electrical circuit continuously.

EGR System Monitoring System





DTC Description / Detecting Condition / Confirmation Procedure

P0401, P0402

Refer to P0401 DTC P0401 / P0402: Exhaust Gas Recirculation (EGR) Flow Insufficient / Excessive Detected.

P0403

Refer to P0403 DTC P0403: Exhaust Gas Recirculation (EGR) Control Circuit.

EGR System Monitor

Operation





Enable condition






Typical malfunction thresholds






EGR System Circuit Monitor

Operation





Enable condition





Typical malfunction thresholds






MODE $06 Data