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2-688
Control System JL4G15-D
Post-catalytic Oxygen Sensor Harness
Connector EO03
A
ECM Harness Connector EO01
16
15
14
13
12
73
32
31
30
29
28
52
51
50
49
48
47
46
45
44
72
71
70
69
68
67
66
65
64
Yes
Step 5
Check ECM working circuit.
Yes
Step 6
Replace ECM. Refer to
Next
Step 7
Use scan tool to confirm whether the DTC code is stored again.
EC718/EC718RV EC715/EC715RV 10/2009
B
C
D
11
10
9
8
7
6
5
4
3
2
27
26
25
24
23
22
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20
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63
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53
FE02-5359b
2.2.8.8 Engine Control Module
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect the oxygen sensor wiring harness connector
EO03.
(c)
Disconnect ECM harness connector EO01.
(d)
Test Continuity between oxygen sensor wiring harness
connector EO03 terminal C and ECM harness connector
EO01 terminal No.46.
Standard Resistance: Less than 1 Ω
(e)
Connect ECM harness connector EO01.
(f)
Connect the oxygen sensor wiring harness connector EO03.
Is the resistance specified value?
No
1
(a)
Check whether ECM power supply circuit is normal.
(b)
Check whether ECM ground circuit is normal.
No
Replacement.
(a)
Replace ECM.
(b)
Carry out crankshaft position sensor self learn. Refer to
2.12.7.11 Crankshaft Position Sensor (CKP)
(a)
Connect scan tool to the datalink connector.
(b)
Turn the ignition switch to "ON" position.
(c)
Clear DTC code.
(d)
Start and run the engine at idle speed to warm up the engine
for at least 5 min.
(e)
Road test the vehicle for at least 5 min.
(f)
Read control system DTC code again to confirm that the
system has no DTC code.
ECM control circuit malfunction.
Repair the faulty part.
Engine
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