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6-98 ENGINE GENERAL INFORMATION AND DIAGNOSIS
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
sensor monitoring test not completed), check vehicle condition (environmental) and repeat step 3) through
6) of DTC P0131/P0132 confirmation procedure.
TROUBLESHOOTING
Step
1
Was "Engine and Emission Control System
Check" performed?
2
Is there DTC(s) other than HO2S–1 (DTC
P0133)?
DTC P0134 Heated Oxygen Sensor (HO2S) No Activity Detected (Sensor-1)
WIRING DIAGRAM
BLK/YEL
3
WHT/BLU
1
60A
80A
C64
7
6
5
4
17
16
15
14
13
12
27
26
25
24
23
22
34
33
32
1. Relay/fuse box
2. Shield wire
3. Ignition switch
Action
4
BLK/WHT
5
BLK/WHT
8
C63
3
2
1
7
6
5
4
3
11
10
9
8
19
18
17
16
15
14
13
12
21
20
19
18
27
26
25
24
31
30
29
28
35
34
33
32
4. Circuit fuse box
5. "IG" fuse
6. HO2S–1
Yes
Go to Step 2.
Go to applicable DTC
diag. flow table.
6
BLK/WHT
7
2
ORN
G91
2
1
6
5
4
3
11
10
9
8
16
15
14
13
12
11
10
23
22
21
20
27
26
25
24
23
22
21
20
31
30
29
28
35
34
33
32
31
7. Heater
8. To HO2S–2 heater
9. ECM
Go to "Engine and Emis-
sion Control System
Check" in this section.
Replace HO2S–1.
9
BLK/WHT
G91-28
BLK/WHT
C64-4
WHT
C63-11
ORN
C63-28
10
2
1
9
8
7
19
18
17
30
29
28
10. To other sensor
No
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