Engine General Information and Diagnosis: 1A-50
DTC P0115 (No. 19): Engine Coolant Temp. (ECT) Circuit Malfunction
S3RH0A1104021
Wiring Diagram
DTC Detecting Condition and Possible Cause
NOTE
• Before inspecting, be sure to check that coolant temp. meter in combination meter indicates normal
operating temperature (Engine is not overheating).
• When this DTC and P1709 are stored together, also clear DTC stored in TCM after completion of
repair.
• When DTC P0105 (No. 11), P0110 (No. 18), P0115 (No. 19) and P0120 (No. 13) are indicated together, it
is possible that “ORN” circuit be open.
DTC Confirmation Procedure
1) Clear DTC, start engine and keep it at idle for 1 min.
2) Select “DTC” mode on scan tool and check DTC.
C41-14
5V
ECM
LT GRN
ORN
C41-10
1
C41 (31P)
G04 (24P)
G03 (17P)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
28 27
29
30
31
5
6
1
2
3
4
5
6
7
11
12
9
10
11
13 12
14
15
16
16
17
1
2
7
8
13
14
3
4
9
10
15
17
18
8
19
20
21
22
23
24
I2RH0B110025-01
1. From other sensors
DTC detecting condition
Possible cause
• Low engine coolant temperature (High voltage-High
resistance)
or
• High engine coolant temperature (Low voltage-Low
resistance)
• “LT GRN” circuit open or shorted to power
• “ORN” circuit open
• ECT sensor malfunction
• ECM malfunction
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Страница 1300: ...Prepared by 1st Ed Nov 2003 2nd Ed Feb 2007...
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