Dtc P0131 / P0132 / P0134: O2 Sensor (Ho2S) Circuit Low Voltage / High Voltage / No Activity Detected (Sensor-1) - Suzuki Grand Vitara 2011 Manual

DTC P0131 / P0132 / P0134: O2 Sensor (HO2S) Circuit Low Voltage / High Voltage / No Activity
Detected (Sensor-1)
Wiring Diagram
BLK/WHT
*GRN
4
5
3
15 14 13 12 11
30 29 28 27 26
44
45 43 42 41
60 59 58 57 56
1. HO2 heater relay
2. Shield wire
3. Ignition switch
A/F Sensor Description
Refer to "A/F Sensor Description: For Petrol Engine Model".
DTC Detecting Condition and Trouble Area
DTC P0131:
A/F sensor (LF+) terminal voltage is lower than 1.8 V or A/F sensor output
current is lower than –5 mA.
(2 driving cycle detection logic)
DTC P0132:
A/F sensor (LF+) terminal voltage is higher than 3.8 V or A/F sensor output
current is more than 5 mA.
(2 driving cycle detection logic)
DTC P0134:
Impedance of A/F sensor element is higher than 500 Ω for more than 2 sec
even though A/F sensor heater is turned ON for more than 160 sec with
engine running. (A/F sensor or sensor circuit open)
(2 driving cycle detection logic)
Engine General Information and Diagnosis: For Petrol Engine Model 1A-110
1
BLK
PNK
8 PNK BLK
BLK
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
4. "O2 HTR" fuse
5. "IG COIL" fuse
6. A/F sensor
DTC detecting condition
6
2
11
BLU
WHT
7
10
2 1 15 14 13 12 11
17 16 30 29 28 27 26
44
32 31 45 43 42 41
47 46 60 59 58 57 56
7. Heater
8. To HO2S-2 heater
9. ECM
9
5 V
C37-38
WHT
C37-37
BLK
5 V
RED/YEL C37-35
RED/BLU
C37-34
PNK/BLU
C37-32
C37-31
BLK/YEL
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
10. Adjusting resistor (J20A engine)
11. Sensor
*: M16A engine
Trouble area
• A/F sensor circuit
• A/F sensor
• ECM
S6JB0A1114032
2 1
17 16
32 31
47 46
I5JB0A110044-02