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6-2-94 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
DTC P0133 O2 Sensor (HO2S) Circuit Slow Response (Sensor-1)
Wiring Diagram
BLU/BLK
3
WHT/BLU
1
60A
80A
E23
7
6
5
4
17
16
15
14
13
12
27
26
25
24
23
22
34
33
32
1. Relay 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 5.5 sec. at minimum.
✱
(
2 driving cycle detection logic, monitoring once/1 driving)
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.: 70°C (158°F) or higher
• Altitude (barometric pressure): 2500 m, 8200 ft or less (540 mmHg, 72 kPa or more)
4
BLK/WHT
5
BLK/WHT
8
E22
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 COIL" fuse
6. HO2S–1
6
BLK/WHT
7
2
BRN/WHT
E21
2
1
6
5
4
3
11
10
9
8
16
15
14
13
12
11
10
9
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
9
BLK/WHT
E21-28
E23-4
YEL
E22-11
RED
BRN/WHT
E22-28
10
2
1
7
8
19
18
17
30
29
28
10. To other sensor
Trouble Area
• Heated oxygen sensor–1
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