Dtc P0443 Evap Control System Purge Control Valve Circuit Malfunction - Suzuki GRAND VITARA XL-7 Owner's Manual

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6-1-98 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE)

DTC P0443 Evap Control System Purge Control Valve Circuit Malfunction

SYSTEM/WIRING DIAGRAM

1. Main fuse

2. Main relay

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

• When performing a road test, select a place where there is no traffic or possibility of a traffic acci-

dent and be very careful during testing to avoid occurrence of an accident.

• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

Check to make sure that following condition is satisfied when using the "DTC Confirmation Proce-

• Intake air temp. : – 8°C (18°F) or higher

• Engine coolant temp. : – 8 – 110°C (18 – 230°F)

• Altitude (barometric pressure) : 2400 m, 8000 ft or less (560 mmHg (75 kPa) or more)

3. EVAP canister purge valve

4. ECM (PCM)

TROUBLE AREA

• EVAP canister purge valve and its circuit

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