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

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