Dtc P0443 Evap Control System Purge Control Valve Circuit Malfunction - Suzuki 2000 Grand Vitara SQ625 Service Manual

6-1-100 ENGINE (H25 ENGINE)

DTC P0443 EVAP CONTROL SYSTEM PURGE CONTROL VALVE CIRCUIT MALFUNCTION

WIRING DIAGRAM
1. Main fuse
2. Main relay
3. EVAP canister purge valve
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Monitor signal of EVAP canister purge valve is different
from command signal. (Circuit open or short)
(2 driving cycle detection logic)
DTC CONFIRMATION PROCEDURE
WARNING:
D When performing a road test, select a place where there is no traffic or possibility of a traffic accident
and be very careful during testing to avoid occurrence of an accident.
D Road test should be carried out with 2 persons, a driver and a tester, on a level road.
NOTE:
Check to make sure that the following conditions are satisfied when using this DTC CONFIRMATION PRO-
CEDURE.
D Intake air temperature: between –14 C and 70 C (6.8 F and 158 F)
D Atmospheric pressure: higher than 560 mmHg (Altitude: lower than 2790 m (9150 ft))
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool.
3) Start engine and warm up it completely.
4) Increase vehicle speed to 40 km/h (25 mph) or more.
5) Keep driving above vehicle speed for 5 min. or more (Change of vehicle speed is permitted in this step).
6) Release accelerator pedal, stop vehicle and run engine at idle speed for 2 min.
7) Check DTC and pending DTC by using scan tool.
TROUBLE AREA
D EVAP canister purge valve and its circuit
D ECM (PCM)