Suzuki Wagon R Plus RB310, Service Manual

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ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-95
1) Perform step 1) to 6) of DTC P0131/P0132 confirmation procedure.
2) Check if DTC and pending DTC exists by using scan tool. If not, check if oxygen sensor monitoring test has
completed by using scan tool. If not in both of above checks (i.e., no DTC and pending DTC and oxygen sen-
sor monitoring test not completed), check vehicle condition (environmental) and repeat step 3) through 6) of
DTC P0131/P0132 confirmation procedure.
Troubleshooting
DTC P0134 O2 Sensor (HO2S) No Activity Detected (Sensor-1)
Wiring Diagram
Step Action Yes No
1 Was “Engine and Emission Control System
Check” performed? Go to Step 2. Go to “Engine and Emis-
sion Control System
Check” in this section.
2 Is there DTC(s) other than HO2S–1 (DTC
P0133)? Go to applicable DTC
diag. flow table. Replace HO2S–1.
1. Relay box 4. Circuit fuse box 7. Heater 10. To other sensor
2. Shield wire 5. “IG COIL” fuse 8. To HO2S–2 heater
3. Ignition switch 6. HO2S–1 9. ECM
E23 E22 E21
1 2 3 4 5 6 7 1 2 3 4 5 6 1 2 3 4 5 6 7
7 8 9 10 11 12 13 14 15 16 17 8 9 10 11 12 13 14 15 16 8 9 10 11 12 13 14 15 16 17
18 19
18 19
17 18 19 20 21 22 23 24 25 26 27 20 21 22 23 20 21 22 23 24 25 24 25 26 27 26 27
28 29 30 31 32 32 28 29 30 28 29 30 31 31 33 33 32 33 34 34 35 34 35
BLK/WHT BLK/WHT
WHT/BLU
80A 60A
BLU/BLK
YEL
RED
BRN/WHT BRN/WHT
BLK/WHT
BLK/WHT
E21-28
E23-4
E22-11
E22-28
9
6
2
7
5
4
1
3
8
10