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06 - SQR484F ENGINE MANAGEMENT SYSTEM
5
Check upstream oxygen sensor heater control circuit
a. Disconnect ECM connector E-035.
b. Check wire harness between upstream oxygen sensor
connector terminals and ECM connector terminals.
Check for Open
Multimeter
Connection
E-084 (3) - E-035
(9)
Check for Short
06
Multimeter
Connection
E-084 (3) or
E-035 (9) - Body
ground
E-084 (3) or
E-035 (9) -
Battery positive
Repair or replace wire harness or
NG
connector (upstream oxygen sensor -
ECM)
6
Check upstream oxygen sensor heater
a. Measure resistance of upstream oxygen sensor.
Multimeter
Connection
Terminal C -
Terminal D
Terminal A -
Terminal B
Terminal A -
Terminal C
Terminal A -
Terminal D
Terminal B -
Terminal C
Terminal B -
Terminal D
Replace upstream oxygen sensor
NG
36
06–
Specified
Condition
Condition
Always
Continuity
Specified
Condition
Condition
Always
No continuity
Always
No continuity
Specified
Condition
Condition
20°C
7 - 11 Ω
Always
No continuity
1
2
3
4
+
-
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
7
E-035
+
-
Chery Automobile Co., Ltd.
47
48
35
36
23
24
8
9 10
11
12
RT21065010
OK
D
C
B
A
RT21090140
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Troubleshooting
