Chery T21 2014 Service Manual page 241

DTC Code DTC Definitions
O2 Sensor Circ.,
P0136-00 Bank1-Sensor2
Malfunction
O2 Sensor Circ.,
P0137-00 Bank1-Sensor2 Low
Voltage
O2 Sensor Circ.,
P0138-00 Bank1-Sensor2 High
Voltage
O2 Sensor Circ.,
P0140-00 Bank1-Sensor2 No
Activity Detected
O2 Sensor Signal
P2270-00 Stuck Lean; Bank 1
Sensor 2
O2 Sensor Signal
P2271-00 Stuck Rich; Bank 1
Sensor 2
DTC Confirmation Procedure
Confirm that battery voltage is over 12 V before performing the following procedures.
 Turn ignition switch to LOCK.
 Connect X-431 3G diagnostic tester (the latest software) to Data Link Connector (DLC).
 Turn ignition switch to ON.
 Use X-431 3G diagnostic tester to record and clear the DTCs stored in the ECM.
 Start the engine and warm it up to normal operating temperature, and then select Read Code.
 If the DTC is detected, the malfunction indicated by the DTC is current. Go to the diagnosis 
procedure - Step 1.
 If DTC is not detected, the malfunction indicated by the DTC is intermittent
CAUTION
 When performing circuit diagnosis and test, always refer to the circuit diagram for specific circuit and
component information.
Chery Automobile Co., Ltd.
06 - SQR484F ENGINE MANAGEMENT SYSTEM
DTC Detection
Conditions
 Downstream oxygen sensor
Ignition switch ON
 Wire harness or connector
Engine running
 ECM
Possible Cause
(See page 06-18).
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