Chery T21 2014 Service Manual page 870

18 - QR019CHB CVT
Check TCU Power Circuit Value
Terminal No.
28
46
56
3
31
DTC Confirmation Procedure:
Confirm that battery voltage is between 11 and 14 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), and make it
communicate with vehicle electronic module by the data network.
 Turn ignition switch to ON.
 Using X-431 3G diagnostic tester to record and clear the DTCs stored in the TCU.
 Turn ignition switch to LOCK and wait for a few seconds.
 Turn ignition switch to ON, and then select "Read Code".
 If 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. Please refer to Intermittent
DTC Troubleshooting.
Diagnosis procedure
1
Check if TCU power fuse EF17, EF19 and EF46 are normal
Replace failed fuse
NG
18
2
Check if TCU relay 12 operates normally
Replace TCU relay 12
NG
Check if ignition switch to fuse box TCU fuse and relay circuit and battery to fuse box TCU
3
fuse and relay circuit are normal
Repair or replace failed circuit
NG
36
18–
Item
Ignition Switch Ignition Switch ON
Ignition Switch Ignition Switch ON
Battery Power
Battery Power
Battery Power
Condition
Voltage (11 - 14 V)
Voltage (11 - 14 V)
- Voltage (11 - 14 V)
- Voltage (11 - 14 V)
- Voltage (11 - 14 V)
Chery Automobile Co., Ltd.
Value
OK
OK
OK