Comprehensive Component Monitor (Engine Output)

OBD System Description - Comprehensive Component Monitor (Engine Output)

DTC Description / Detecting Condition / Confirmation Procedure

P0443
Refer to DTC P0443: Evaporative Emission System Purge Control Valve Circuit. P0443

P0449
Refer to DTC P0449: Evaporative Emission System Vent Valve / Solenoid Circuit. P0449

P0506, P0507
Refer to DTC P0506 / P0507: Idle Air Control System RPM Lower than Expected / Higher than Expected. P0506 P0507

P2400
Refer to DTC P2400: Evaporative Emission System Leak Detection Pump Control Circuit / Open. P2400










Canister Purge Valve Circuit Monitor










Canister Vent Valve Circuit Monitor










Leak Detecting Pump Circuit Monitor










IAC System Monitor

Monitoring procedure
The Idle Air Control (IAC) solenoid functionally checked by monitoring the closed loop idle speed correction required to maintain the desired idle rpm. If the proper idle rpm cannot be maintained and the system has a high rpm (+200) or low rpm error (-100) greater than the malfunction threshold, an IAC malfunction is indicated. (P0507, P0506)