Chery Tiggo 5 (T21). Manual — part 166

14–

Inspection

1. Inspect resistance of ignition coil primary winding.



Turn digital multimeter to ohm band, and check
resistance between terminals 1 and 3 or 1 and 4, 2 and 3
or 2 and 4.



If result is not as specified, replace the ignition coil.

2. Inspect resistance of ignition coil secondary winding.



Turn digital multimeter to ohm band, and check
resistance between the high-voltage posts 1 and 4, 2 and
3 of ignition coil secondary winding.



If result is not as specified, replace the ignition coil.

Installation

Installation is in the reverse order of removal.

RT21140070

1 2 3 4

Multimeter

Connection

Condition

Specification (Ω)

Terminal 1 -

Terminal 3 or 4

Normal

temperature

0.50 - 0.64

Terminal 2 -

Terminal 3 or 4

Normal

temperature

0.50 - 0.64

RT21140080

Multimeter

Connection

Condition

Specification

(kΩ)

Post 1 - Post 4

Normal

temperature

9.50 - 12.10

Post 2 - Post 3

Normal

temperature

9.50 - 12.10

CAUTION

 Make sure the connection between ignition coil and ignition coil high-voltage post, spark plug is reliable

during installation, or it may cause the high-voltage leakage, resulting in poor ignition.

14–

Spark Plug

Removal

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

See page 10-10

4. Move away the high-voltage cables for each cylinder.

a. Remove the clamp (arrow) from the crankcase

ventilation hose, and disconnect the connection
between crankcase ventilation hose and valve
chamber cover.

b. Move away the crankcase ventilation hose.
c. Loosen the high-voltage cables (1) in order and pull

them upward to remove them from the spark plug
holes.

d. Move the high-voltage cable to one side.

5. Remove the spark plug.

a. Using a special spark plug socket wrench (1), loosen

the spark plug (2).

b. Remove the spark plug (2).

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.

 DO NOT remove the spark plugs when the engine is hot; failure to do this may cause damage to the

spark plug thread holes on the cylinder head.

 Remove the high-voltage cables from the spark plugs in order, and mark them to prevent incorrect

installation.

 Before removal, remove the dirt and foreign matter around the spark plug holes to prevent them from

dropping into cylinders.

RT21140110

CAUTION

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

RT21140090

14–

Inspection

Check the spark plug gap "a": 0.8 - 0.9 mm.

Installation

1. Install 4 spark plugs respectively into the cylinder head mounting holes for pre-tightening, and then

retighten the spark plugs with a torque wrench.



(Tightening torque: 30 ± 3 N·m)

2. Other procedures are in the reverse order of removal.

RT21140100

CAUTION

 Check the spark plug type to confirm if it is suitable.
 Please install spark plug with the special spark plug socket wrench, and never touch the spark plug

socket. DO NOT damage the normal spark plug gap.

SQR484F STARTING SYSTEM

GENERAL INFORMATION

15-3

Description 15-3
Operation 15-6
Specifications 15-7
Tools 15-7
Circuit Diagram

15-8

DIAGNOSIS & TESTING

15-14

Problem Symptoms Table

15-14

Starter Relay Inspection

15-15