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DTC P0133 O2 Sensor (HO2S) Circuit Slow Response (Sensor-1)
WIRING DIAGRAM
BLK/YEL
3
WHT/BLU
1
80A
60A
C64
7
6
5
4
3
17
16
15
14
13
12
11
27
26
25
24
23
22
21
34
33
32
31
1. Relay/fuse box
2. Shield wire
3. Ignition switch
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Response time (time to change from lean to rich or from rich to lean)
of HO2S–1 output voltage is about 1 sec. at minimum or average
time of 1 cycle is 5 sec. at minimum.
(2 driving cycle detection logic)
DTC CONFIRMATION PROCEDURE
WARNING:
• When performing a road test, select a place where there is no traffic or possibility of a traffic acci-
dent and very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 person, 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.
• Intake air temp.: –7°C (19.4°F) or higher
• Engine coolant temp.: –7°C (19.4°F) or higher
• Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)
4
BLK/WHT
5
BLK/WHT
BLK/WHT
8
C63
2
1
7
6
5
4
3
10
9
8
19
18
17
16
15
14
13
12
11
20
19
18
27
26
25
24
23
30
29
28
35
34
33
32
31
4. Circuit fuse box
5. "IG" fuse
6. HO2S–1
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-97
6
7
2
ORN
G91
2
1
6
5
4
3
2
10
9
8
16
15
14
13
12
11
10
9
22
21
20
27
26
25
24
23
22
21
20
19
30
29
28
35
34
33
32
31
30
7. Heater
8. To HO2S–2 heater
9. ECM
• Heated oxygen sensor–1
9
BLK/WHT
G91-28
C64-4
BLK/WHT
WHT
C63-11
ORN
C63-28
10
1
7
8
18
17
29
28
10. To other sensor
TROUBLE AREA
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