Dtc P0443: Evaporative Emission System Purge Control Valve Circuit - Suzuki Swift Sport 2004 Service & Repair Manual

1A-122 Engine General Information and Diagnosis:
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)" and "DTC P0137 / P0138: O2
Sensor (HO2S) Circuit Low Voltage / High Voltage
(Sensor-2)".
Is check result satisfactory?

DTC P0443: Evaporative Emission System Purge Control Valve Circuit

Wiring Diagram
GRN
5
3
WHT
BLK/YEL
8
7
4
15 14 13 12 11
30 29 28 27 26
44
45 43 42 41
59
60 58 57 56
1. EVAP canister purge valve
2. Main relay
3. "IG COIL" fuse
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)
Action
2
BLK/YEL
BLK/YEL
E23
10 9 8 7 6 5 4 3
25 24 23 22 21 20 19 18
40 39 38 37 36 35 34 33
55 54 53 52 51 50 49 48
Replace exhaust
manifold (built in warm
up three way catalytic
converter) and exhaust
center pipe (built in
three way catalytic
converter).
BLK/WHT
BRN/WHT
BLK/RED BLK/RED
BLK/RED BLK/RED
1
BLU/BLK
2 1 15 14 13 12 11
17 16 30 29 28 27 26
44
32 31 45 43 42 41
59
47 46 60 58 57 56
4. Main fuse box
5. Ignition switch
6. ECM
• EVAP canister purge valve
• EVAP canister purge valve circuit
• ECM
Yes
Check "BRN" and / or
"YEL" wires for open
and short, and
connections for poor
connection.
If wires and connections
are OK, replace HO2S-
2.
6
E23-29
C37-58 BLK/ORN
C37-15
BLK
C37-30 BLK
E23-60
E23-31 BLK
5V
12V
E23-1
E23-16
C37-29
C37
10 9 8 7 6 5 4 3
25 24 23 22 21 20 19 18
40 39 38 37 36 35 34 33
55 54 53 52 51 50 49 48
7. "FI" fuse
8. "IG ACC" fuse
Trouble area
No
S7RS0B1104047
2 1
17 16
32 31
47 46
I6RS0C110020-02