Suzuki Wagon R Manual page 1169

DTC P0443 PURGE CONTROL VALVE CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
Main
fuse
"FI"
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. See Fig. 1.
Resistance between
two terminals
Resistance between
terminal and body : 1M Ω or higher
Is it as specified?
Main relay
To other circuits
EVAP canister
Surge
purge valve
tank
Fuel
level
EVAP
sensor
canister
ACTION
: 30 – 34 Ω at 20_C (68_F)
GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-77
EVAP canister
purge valve
Fuel vapor separator
Fuel filler cap
Fuel tank
POSSIBLE CAUSE
D "RED/BLK" circuit open or short
D "BLK/RED" circuit open
D Canister purge valve malfunction
YES
"RED/BLK" circuit open
or short.
NO
Replace EVAP canister
purge valve.