Chery T21 2014 Service Manual page 843

Electronic control system consists of the components below:
 Transmission control unit (TCU)
 Pressure control solenoid
 Torque converter solenoid
 Clutch control solenoid
 Gear shift lever locking solenoid
 Turbine speed sensor
 Primary shaft speed sensor
 Secondary shaft speed sensor
 Oil pressure sensor
 Transmission fluid temperature sensor
 Transmission range sensor
 Manual mode switch
Transmission Range Sensor
The transmission range sensor is located at the top of the
transmission. It is used to input the current gear signal into
the TCU, and the TCU will output the operation requirements
to control the clutch and transmission for gear shifting. The
engine can be started only when the gear shift lever is at
parking (P) and neutral (N) gear, thus avoiding misoperation.
Manual Mode Switch
No matter whether the vehicle is static or running, you could
push the gear shift lever to shift between "M" and "D" gear.
On the gear shift mechanism panel, there are two gears of
"+" and "-" at the "M" gear, they are also called manual 
shift-up and manual shift-down.
 M+: push the gear shift lever once to "M+" and the transmission will be increased one gear.
 M-: push the gear shift lever once to "M-" and the transmission will be reduced one gear.
 In the automatic mode, when the engine speed is too low, it will automatically shift down; and shift up when
the engine speed is high.
 In the manual mode, the driver should shift up the gear in advance based on the experience to prevent the
engine speed entering the red area of tachometer.
Chery Automobile Co., Ltd.
18 - QR019CHB CVT
RT21180080
18
RT21180090
9
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