Dtc P0030: Ho2S Heater Control Circuit (Sensor-1) - Suzuki GRAND VITARA Owner's Manual

Step
8 Oil control valve check
1) Check oil control valve referring to "Oil Control Valve
Inspection: For M16A Engine with VVT in Section 1D".
Is it in good condition?

DTC P0030: HO2S Heater Control Circuit (Sensor-1)

Wiring Diagram
BLK/WHT
*GRN
4
5
3
15 14 13 12 11
30 29 28 27 26
45 44 43 42 41
60 59 58 57 56
1. HO2S heater relay
2. Shield wire
3. Ignition switch
A/F Sensor Description
Refer to "A/F Sensor Description: ".
DTC Detecting Condition and Trouble Area
DTC detecting condition
Impedance of A/F sensor element is higher than or lower than
specified range for more than 200 sec. even though A/F sensor
heater is turned ON for more than specified time with engine
running. (A/F sensor does not activate)
(2 driving cycle detection logic)
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 4 min. or more.
5) Check DTC and pending DTC.
Action
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
Engine General Information and Diagnosis:
Replace camshaft
timing sprocket.
6
2
11
BLU
WHT
7
10
2 1 15 14 13 12 11
17 16 30 29 28 27 26
32 31 45 44 43 42 41
47 46 60 59 58 57 56
7. Heater
8. To HO2S-2 heater
9. ECM
• A/F sensor heater circuit
• A/F sensor heater
• ECM
Yes
Replace oil control
valve.
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
11. Sensor
*: For M16 engine
Trouble area
1A-64
No
S5JB0A1104088
2 1
17 16
32 31
47 46
I5JB0A110027-02