Suzuki 2006 SX4, Service Manual

Page: 102 / 1478

1A-58 Engine General Information and Diagnosis:
DTC P0030: HO2S Heater Control Circuit (Sensor-1, Bank-1)
S6RW0C1104014
Wiring Diagram
A/F Sensor Description
Refer to “A/F Sensor Description”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Start engine and warm up to normal operating temperature.
4) Run engine at idle speed for 5 min. or more.
5) Check DTC and pending DTC.
E01 C01
3 4
18 19
5 6 7 10 11
17 20
47 46 49 50 51
21 22
52
16 25
9
24
14
29
55 57 54 53
59
60 58
2
26 27 28
15
30
56 48
32 31 34 35 36 37 40 42 39 38
44
45 43 41 33
1 12 13
23
8 3 4
18 19
5 6 7 10 11
17 20
47 46 49 50 51
21 22
52
16 25
9
24
14
29
55 57 54 53
59
60 58
2
26 27 28
15
30
56 48
32 31 34 35 36 37 40 42 39 38
44
45 43 41 33
1 12 13
23
8
1
2
BLK
BLK
7
RED/BLU C01-47
C01-11
C01-39 BLU
WHT BRN
BLK/RED
3
8
4
6
2
A1
5
C01-32
C01-37
C01-38
BLK
BLK/WHT
BLK
BLU
WHT
C01-31
WHT
BLK
RED
BLK
7
5 V
A2
A4
A3
A5
B2
B3
B1
I7RW01110088-02
A1: Signal (+) circuit of A/F sensor B2: Ground circuit of HO2S 5. “IG COIL” fuse
A2: Signal (–) circuit of A/F sensor B3: Control circuit of HO2S heater 6. A/F sensor
A3: Control circuit of A/F sensor heater 1. HO2S 7. Sensor heater
A4: Control ground circuit of A/F sensor heater 2. Shield wire 8. “IGN” fuse
A5: Power supply circuit of A/F sensor heater and HO2S heater 3. Ignition switch
B1: Signal circuit of HO2S 4. ECM
DTC detecting condition Trouble area
Impedance of A/F sensor element is higher than 50
Ω
for 20
sec. even though A/F sensor heater is turned ON.
(2 driving cycle detection logic)
• A/F sensor heater and/or its circuit
• ECM