Chery Tiggo 5 (T21). Manual — part 103

06–

254

06

Electronic Throttle Assembly

Description

The electronic throttle assembly is located on intake manifold assembly.

Operation

The electronic throttle assembly is a critical part for engine intake system. Its main function is to adjust intake
passage area according to driver's driving intention, and control intake air volume to meet the intake
requirement for engine in different operating conditions, and send back the position signals of throttle valve
plate to control unit to achieve accurate control. The throttle valve plate will stop at the limp home position
(NLP) determined in a mechanical way when a malfunction occurs.
The electronic throttle assembly consists of four parts: drive module, train module, executive module and
feedback module, and all components are integrated into the same throttle valve housing.

Removal & Installation

(

See page 10-20

)

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255

06

Canister Solenoid Valve

Description

The canister solenoid valve opens when power is on, and closes when power is off.

Operation

The canister solenoid valve consists of solenoid coil, magnet armature, valve, etc. The air volume through
canister solenoid valve depends on electric pulse duty ratio that outputs from Engine Control Module (ECM)
and pressure difference between canister inlet and outlet. When there is no electric pulse, the canister
solenoid valve closes.

Removal & Installation

(

See page 09-7

)

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256

06

Engine Control Module (ECM)

Description

The Engine Control Module (ECM), mounted on the lower right side of engine compartment rain gutter front
end panel assembly, can be removed only as a unit for replacement.

Operation

The Engine Control Module (ECM) is a pre-programmed microprocessor digital computer, which is used to
adjust ignition timing, air-fuel ratio, emission control, speed control, A/C compressor and idle speed etc. The
Engine Control Module (ECM) enables the program to suit ever-changing operation conditions.

Removal

1. Turn off all electrical equipment and ignition switch.
2. Disconnect negative battery cable.
3. Remove front wiper arm assembly (

See page 36-24

).

4. Remove front windshield lower garnish assembly (

See page 48-39

).

5. Remove Engine Control Module (ECM).

a. Remove ECM connector protection cover bolts.

b. For MT model, disconnect 2 ECM connectors (1).



For CVT model, disconnect 2 ECM connector (1) and
TCU connector (2).

c. Remove ECM bracket fixing nuts (arrow).



(Tightening torque: 7 ± 1 N·m)

RT21060380

RT21060390

2

1

RT21060400

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06

d. Remove the Engine Control Module (ECM) from

bracket.

Installation

Installation is in the reverse order of removal.

RT21060410

CAUTION

 Pay attention to static electricity protection when installing.
 Take care to protect connector pins.
 To prevent water droplets from accumulating on connector joint, face it down.