Chery T21 2014 Service Manual page 244

06 - SQR484F ENGINE MANAGEMENT SYSTEM
Check for Short
Multimeter
Connection
E-043 (1) or
E-033 (43) - Body
ground
E-043 (1) or
E-033 (43) -
Battery positive
Repair or replace wire harness or
NG
connector (downstream oxygen sensor -
ECM)
06
6
Check downstream oxygen sensor
a. Remove downstream oxygen sensor.
b. Check downstream oxygen sensor for following problems.
 Moisture enters the internal of sensor, temperature changes greatly, and probe is broken.
 Oxygen sensor is "poisoned" (Pb, S, Br, Si, etc.).
Replace downstream oxygen sensor
NG
7
Check for DTCs
a. Use X-431 3G diagnostic tester to read the ECM DTC.
b. Refer to "DTC Confirmation Procedure".
c. Check if DTC P0136-00, P0137-00, P0138-00, P0140-00, P2270-00 or P2271-00 still exists.
Replace ECM
NG
System is operating normally.
Reassemble vehicle and perform a road test to confirm that malfunction reported by customer has
been repaired.
80
06–
Specified
Condition
Condition
Always No continuity
Chery Automobile Co., Ltd.
OK
OK
OK