Chery T21 2014 Service Manual page 291

DTC Code DTC Definition
Evaporative Emiss.
P0444-00 System Purge Control
Valve Circ. Open
Evaporative Emission
P0458-00 System Purge Control
Valve Circuit Low
Evaporative Emission
P0459-00 System Purge Control
Valve Circuit High
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.
Diagnosis Procedure
1
Check ECM ground point
a. Turn ignition switch to LOCK.
b. Check ECM grounds E-026 and E-028
Repair or replace ground wire harness or
NG
ground point
Chery Automobile Co., Ltd.
06 - SQR484F ENGINE MANAGEMENT SYSTEM
DTC Detection
Condition
 Canister solenoid valve
 Wire harness or connector
Engine running
 ECM
(See page 06-18).
Possible Cause
(See page 06-18).
OK
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