Suzuki Liana RH418, Supplementary Service Manual

Page: 67 / 371

Engine General Information and Diagnosis: 1A-54
DTC P0130 (No. 14): Heated Oxygen Sensor (HO2S) Circuit Malfunction (Sensor-1)
S3RH0B1104021
Wiring Diagram
DTC Detecting Condition and Possible Cause
DTC Confirmation Procedure
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester, on a level road.
NOTE
Check to make sure that the following conditions are satisfied when using this DTC confirmation
procedure.
• Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)
• Ambient temp.: –10
°
C, 14
°
F or higher
• Intake air temp.: 70
°
C, 158
°
F or lower
1) Turn ignition switch OFF. Clear DTC with ignition switch ON.
2) Warm up engine to normal operating temperature.
3) Drive vehicle at 70 – 100 km/h, 45 – 60 mph (engine speed 1500 – 4000 r/min) for 6 min. or more.
4) Stop vehicle and run engine at idle for 2 min.
5) Check DTC and pending DTC.
ECM
WHT BLU
WHT ORN
C41-10
1
C41-13
C41 (31P) G04 (24P) G03 (17P)
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 28 27 29 30 31
5 6 1 2 3 4 5 6 7
11 12
9 10 11 13 12 14 15 16
16 17
1 2
7 8
13 14
3 4
9 10
15 17 18
8
19 20 21 22 23 24
ORN
I3RH0A110015-01
1. From other sensors
DTC detecting condition Possible cause
• When HO2S signal voltage is less than 0.5 V for specified
time although engine running with high load (high-speed
driving or hill-climbing driving) after engine warmed up.
*2 driving cycle detection logic, Monitoring once / 1 driving
• Heated oxygen sensor-1 malfunction
• “WHT” or “ORN” circuit open (poor connection) or
short