Dtc P0131 / P0132: O2 Sensor (Ho2S) Circuit Low Voltage / High Voltage (Sensor-1) - Suzuki SX4 Service Manual

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1A-92 Engine General Information and Diagnosis:

DTC P0131 / P0132: O2 Sensor (HO2S) Circuit Low Voltage / High Voltage (Sensor-1)

Wiring Diagram
GRN
3
WHT
1
11
15
14
13
12
11
30
28
27
26
29
45
44
43
42
41
59
60
58
57
56
1. Main fuse box
2. Shield wire
3. Ignition switch
DTC Detecting Condition and Trouble Area
DTC P0131:
Maximum HO2S voltage is lower than specified voltage.
(2 driving cycle detection logic, monitoring once/1 driving)
DTC P0132:
Minimum HO2S voltage is higher than specified voltage.
(2 driving cycle detection logic, monitoring once/1 driving)
4
BLK/WHT
5
BLK
WHT
8
12
E01
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
4. Junction block assembly
5. "IG COIL" fuse
6. HO2S-1
DTC detecting condition
6
BLK
7
BLU
WHT
ORN
2
1
15
14
13
12
11
17
16
30
28
27
26
29
32 31
45
44
43
42
41
59
47 46
60
58
57
56
7. Heater
8. To HO2S-2 heater
9. ECM
9
BLK/WHT
E01-29
BLK/RED
C01-46
C01-10
C01-57
10
C01
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
10. To HO2S-2
11. Individual circuit fuse box No.1
12. "IGN" fuse
Trouble area
• HO2S-1 circuit
• HO2S-1
• Fuel system
• ECM
• Fuel shortage
• Exhaust system
• Air intake system
S7RW0A1104033
2
1
17
16
32 31
47 46
I6RW0D110027-01

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