Chery Tiggo 5 (T21). Service manual — part 165

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Service Precautions

Visual inspection can reduce the unnecessary test and diagnostic time, so pay attention to the inspection of
the following items:
1. Check the lines and hoses for obvious looseness, and if they are disconnected or routed improperly.
2. Make sure battery connections are clean and firm.
3. Check if alternator wire and belt are installed correctly and securely.
4. Confirm that ignition coils are installed securely.
5. Check if engine wire harness connectors are inserted fully.
6. Check if all electrical connectors are installed correctly and securely.
7. Check the following electrical connections:

a. Engine speed sensor;
b. Oxygen sensor;
c. Intake pressure/temperature sensor;
d. Oil pressure switch;
e. Ignition coil;
f. Canister solenoid valve;
g. Camshaft position sensor;
h. Electronic throttle valve;
i. Intake VVT control valve;
j. Exhaust VVT control valve;
k. Fuel injector.

8. Check the routing of all vacuum hoses.
9. Confirm that the following vacuum hoses are connected securely without any leakage:

a. Canister solenoid valve;
b. Charcoal canister;
c. PCV valve;
d. Warm damper vacuum system;
e. Brake booster.

10.Check the fuel pump hose and wire connection to make sure they are connected securely.

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ON-VEHICLE SERVICE

High-voltage Cable

Removal

1. Turn off all the electrical equipment and ignition switch.
2. Disconnect the negative battery cable.
3. Remove the engine trim cover assembly (

See page 10-10

).

4. Remove the high-voltage cable.

a. Disconnect the high-voltage cables (arrow) for each

cylinder in order from the ignition coil, and move the
high-voltage cable on the ignition coil side to one side.

b. Remove 3 high-voltage cable clips (arrow).
c. Loosen the high-voltage cables (1) in order and pull

them upward to remove them from the spark plug
holes.

d. Remove the high-voltage cable.

CAUTION

 Be sure to wear necessary safety equipment to prevent accidents when repairing.
 Try to prevent body paint surface from being scratched during removal and installation.
 It is prohibited to use short circuit spark test to test ignition function during repair; otherwise it may cause

personal injury and damage the module.

RT21140020

RT21140030

1

CAUTION

 Be careful not to damage the high-voltage cables when pulling them upward.

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Inspection

Turn digital multimeter to ohm band, and measure resistance of high-voltage cables in the method shown in
the illustration.
If result is not as specified, replace the high-voltage cables.

Installation

Installation is in the reverse order of removal.

RT21140040

Measurement

Item

Condition

Specification

(kΩ)

Cylinder 1

High-voltage

Cable

Normal

temperature

7.5 - 11.2

Cylinder 2

High-voltage

Cable

Normal

temperature

5.8 - 8.3

Cylinder 3

High-voltage

Cable

Normal

temperature

4.2 - 6.7

Cylinder 4

High-voltage

Cable

Normal

temperature

4 - 6.5

CAUTION

 Install cylinder 1 to 4 high-voltage cables to spark plug hole and ignition coil in accordance with the

marks on high-voltage cables.

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Ignition Coil

Removal

1. Turn off all the electrical equipment and ignition switch.
2. Disconnect the negative battery cable.
3. Remove the engine trim cover assembly (

See page 10-10

).

4. Remove the ignition coil.

a. Disconnect the ignition coil connector (1).
b. Disconnect the high-voltage cables (arrow) for each

cylinder, and put them aside.

c. Loosen and remove 4 fixing bolts (arrow) from the

ignition coil assembly.



(Tightening torque: 8 + 3 N·m)

d. Remove the ignition coil.

CAUTION

 Be sure to wear necessary safety equipment to prevent accidents when repairing.
 Try to prevent body paint surface from being scratched during removal and installation.
 It is prohibited to use short circuit spark test to test ignition function during repair; otherwise it may cause

personal injury and damage the module.

1

RT21140050

RT21140060