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4
Check upstream oxygen sensor signal circuit
a. Turn ignition switch to LOCK.
b. Disconnect ECM connector E-035.
c. Disconnect upstream oxygen sensor connector E-084.
d. Check wire harness between upstream oxygen sensor
connector terminals and ECM connector terminals.
Check for Open
Multimeter
Condition
Connection
E-084 (2) - E-035
(40)
Check for Short
Multimeter
Condition
Connection
E-084 (2) or
E-035 (40) - Body
ground
E-084 (2) or
E-035 (40) -
Battery positive
Replace wire harness or connector
NG
(upstream oxygen sensor - ECM)
5
Check upstream oxygen sensor ground circuit
a. Check wire harness between upstream oxygen sensor
connector terminals and ECM connector terminals.
Check for Open
Multimeter
Condition
Connection
E-084 (1) - E-035
(16)
Chery Automobile Co., Ltd.
Specified
Condition
Always
Continuity
Specified
Condition
Always
No continuity
Specified
Condition
Always
Continuity
06 - SQR484F ENGINE MANAGEMENT SYSTEM
1
2
3
+
-
E-084
37 38 39 40 41 42 43 44 45 46
25 26 27 28 29 30 31 32 33 34
13 14 15 16 17 18 19 20 21 22
1
2
3
4
5
6
E-035
1
2
3
+
-
E-084
37 38 39 40 41 42 43 44 45 46
25 26 27 28 29 30 31 32 33 34
13 14 15 16 17 18 19 20 21 22
1
2
3
4
5
6
E-035
4
47
48
35
36
23
24
06
7
8
9 10
11
12
RT21065027
OK
4
47
48
35
36
23
24
7
8
9 10
11
12
RT21065028
73
06–
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Table of Contents
Troubleshooting
