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DTC P0135 (No. 14): Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction (Sensor-1)
Wiring Diagram
DTC Detecting Condition and Possible Cause
DTC detecting condition
DTC will set when one of the following conditions is met.
• Low voltage at terminal "C41-7" when engine is running at
high load.
• High voltage at terminal "C41-7" when engine is running
under condition other than above.
DTC Confirmation Procedure
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester.
1) Turn ignition switch OFF.
2) Clear DTC with ignition switch ON, start engine and keep it at idle for 1 min.
3) Start vehicle and depress accelerator pedal fully for 5 sec. or longer.
4) Stop vehicle.
5) Check DTC.
BLK
BLK/WHT
BLK
PNK/BLK
C41 (31P)
9
8
7
6
5
4
3
2
1
21
20
19
18
17
16
15
14
13
12
11
10
31
30
29
28 27
26
25
24
23
22
Engine General Information and Diagnosis:
IG1
C41-7
G04 (24P)
G03 (17P)
7
6
5
4
3
2
1
6
5
16
15
14
13 12
11
10
9
8
12
11
24
23
22
21
20
19
18
17
17
16
• HO2S-1 heater circuit open or shorted to ground
• ECM malfunction
S3RH0B1104024
ECM
4
3
2
1
10
9
8
7
15
14
13
I3RH0A110016-01
Possible cause
1A-56
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