Suzuki SY413 Service Manual page 2685

6-1-86 ENGINE GENERAL INFORMATION AND DIAGNOSIS (G13/G16 ENGINE WITH WU TWC)
DTC P0443 PURGE CONTROL VALVE CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
DTC DETECTING CONDITION
Canister Purge control valve circuit is opened or
shorted.
DTC CONFIRMATION PROCEDURE
1) Clear DTC with ignition switch ON.
2) Select "DTC" mode on scan tool and check DTC.
INSPECTION
STEP
1 Check EVAP canister purge valve operation
1) With ignition switch OFF, disconnect coupler from
canister purge valve.
2) Check resistance of EVAP canister purge valve.
Resistance between
two terminals
Resistance between
terminal and body : 1M W or higher
Is it as specified?
Fig.1 for Step 1
ACTION
: 30 – 34 W at 20_C (68_F)
POSSIBLE CAUSE
D "R / B" circuit open or short
D "V / R" circuit open
D Canister purge valve malfunction
YES
"R / B" circuit open
or short.
1. EVAP canister purge valve
2. Main relay
3. To other valve
4. Fuel vapor
5. Intake manifold
6. EVAP canister
7. Tank pressure control valve
8. Fuel vapor line
9. Fuel tank
NO
Replace EVAP canister
purge valve.