Chery T21 2014 Service Manual page 189

Confirmation Procedure
Before performing the following procedures, confirm that battery voltage is higher than 12 V.
 Turn ignition switch off.
 Connect X-431 3G diagnostic tester (the latest version) to Data Link Connector (DLC).
 Turn ignition switch ON.
 Using diagnostic tester, select Read Datastream.
 If the datastream is not detected, the malfunction indicated by the datastream is current. Go to the
diagnosis procedure - Step 1.
 If the datastream is detected, the malfunction indicated by the datastream is intermittent
Diagnosis Procedure
1
Check ECM power supply circuit
a. Turn ignition switch off.
b. Disconnect ECM connector E-033.
c. Check voltage between terminals of ECM connector 
E-033 and body ground.
Multimeter
Condition
Connection
E-033 (20) - Body
Ground
Go to step 4
OK
2
Check ECM fuse
a. Unplug ECM fuse EF19 (10A) from engine compartment fuse and relay box.
b. Check resistance of fuse.
Standard resistance: less than 1 Ω
Replace ECM fuse
NG
Chery Automobile Co., Ltd.
Specified
Condition
Always 11 to 14 V
06 - SQR484F ENGINE MANAGEMENT SYSTEM
V
+ -
49 50 51 52 53 54 55 56 57 58 59 60 61 62
33 34 35 36 37 38 39 40 41 42 43 44 45 46
17 18 19 20 21 22 23 24 25 26 27 28 29 30
1 2 3 4 5 6 7 8 9 10 11 12 13 14
E-033
(See page 06-18).
06
63 64
47 48
31 32
15 16
RT21065001
NG
OK
25
06–