Chery Tiggo 5 (T21). Manual - part 230

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a. Check the transmission system using the diagnostic tester.
b. Is there any DTC except for P2797 and P2798?

a. Use diagnostic tester to read the data flow related to transmission system oil pressure sensor for 

abnormality.

b. Transmission system should be normal.
c. Is the check result normal?

a. Using X-431 3G diagnostic tester, select Read Code. 
b. Refer to "DTC Confirmation Procedure".
c. Is DTC P2797 or P2798 still present?

2

Check transmission system

Repair these DTCs fault

NG

3

Read data flow

OK

Repair fault

NG

4

Check for DTC

OK

Replace solenoid and wire harness 
assembly

NG

System is normal

OK

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ON-VEHICLE SERVICE

Automatic Transmission Fluid (ATF) Replacement

Draining

1. Turn off all the electrical devices and ignition switch.
2. Raise the vehicle with a lifter.
3. Place a collection vessel under the oil outlet of transmission.
4. Unscrew the drain bolt to drain ATF. After draining, 

replace the drain bolt gasket and tighten the bolt.



(Tightening torque: 29 - 34 N·m)

Filling

1. Add new ATF along the oil dipstick pipe (filling quantity is 

equal to that of the drained).

2. Start engine to make it run for 1 - 2 min.
3. Step on the brake pedal and move the shift lever at each 

gear and place it to "N" or "P" position.

CAUTION

 Replace gasket after removing drain bolt every time.
 If automatic transmission fluid level is too low, add ATF until it reaches "HOT" position.

RT21180300

RT21180310

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Inspection

1. After the vehicle runs for 5 min, the temperature will reach the normal working conditions (ATF temperature 

60 - 80°C, and the engine coolant temperature 80 - 100°C).

2. Park the vehicle on a flat ground and pull the parking brake lever.
3. Start engine to make it run at idle speed, and then fully depress the brake pedal and move the shift lever 

for five times at each gear. Finally, place the lever at "P" or "N" position.

4. Pull out the automatic transmission fluid dipstick and 

clean it with a piece of non-wool paper; then insert the 
dipstick into the filling pipe as much as possible and then 
take out to observe whether it reaches the "HOT" 
position.

RT21180200

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Differential Oil Seal

Removal

1. Turn off all the electrical devices and ignition switch.
2. Disconnect the negative battery cable.
3. Remove the axle shaft.
4. Using the special tool (1), remove the differential oil seal 

(2).

HINT:
Do not damage the joint surface of the oil seal and 
housing during removal.

Installation

1. Apply automatic transmission fluid on the inner ring of the oil seal.
2. Use the special tool (1) to install the differential oil seal 

(2) to transmission (3).

3. Other installation steps are in the reverse order of removal.

CAUTION

 After the oil seal is removed, use a new one during installation.

2

1

RT21180320

1

2

3

RT21180330

CAUTION

 When installing the oil seal, apply force evenly and prevent the oil seal from deformation and damage.
 Keep the transmission fluid seal open and oil seal clean, to avoid foreign matter entering the transmission.
 Do not apply other sealant on the oil seal.
 Do not wear velutinous gloves when installation.
 After installing oil seal, make sure that the oil seal end surface and the transmission case are on the 

same plane.