Dtc P0443: Evaporative Emission System Purge Control Valve Circuit - Suzuki Grand Vitara 2011 Manual

Step
3 HO2S-2 output voltage check
1) Check output voltage of HO2S-2 referring to "DTC
P0137 / P0138: O2 Sensor (HO2S) Circuit Low Voltage /
High Voltage (Sensor-2): For Petrol Engine Model".
Is check result satisfactory?

DTC P0443: Evaporative Emission System Purge Control Valve Circuit

Wiring Diagram
1. EVAP canister purge valve
2. Main relay
3. "IG COIL" fuse
DTC Detecting Condition and Trouble Area
DTC detecting condition
Monitored voltage of EVAP canister purge valve drive pulse is
different from its command signal. (Circuit open or short)
(2 driving cycle detection logic)
DTC Confirmation Procedure
WARNING
!
• 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.
• Road test should be carried out by 2 persons, a driver and a tester, on a level road.
Engine General Information and Diagnosis: For Petrol Engine Model 1A-146
Action
4. Fuse box No.2
5. Ignition switch
6. ECM
Yes
Replace exhaust
manifold (built in warm
up three way catalytic
converter) and exhaust
center pipe (built in
three way catalytic
converter).
7. "FI" fuse
8. "IGN" fuse
Trouble area
• EVAP canister purge valve
• EVAP canister purge valve circuit
• ECM
No
Check "BRN" and/or
"YEL" wires for open
and short, and
connections for poor
connection.
If wires and connections
are OK, replace HO2S-
2.
S6JB0A1114047
I5JB0A110054-02