Chery Tiggo. Manual - part 284

Diagnostic Procedure

1.

CHECK A/T SOLENOID SIGNAL

• With the scan tool, select view DTC and data stream for A/T.

• Start the engine.

• Monitor the value of the gear position as indicated in the following table while driving:

GEAR

POSITION

ELECTRO-MAGNETIC VALVE

L/R

GEAR

2

UD

OD

DCC

(REF)

Gear 1

Off

On

Off

On

Off

Gear 2

On

Off

Off

On

On

Gear 3

On

Off

Off

Off

On

Gear 4

On

Off

On

Off

On

Reverse

gear

Off

On

On

On

Off

Neutral

gear/

Parking

Off

On

On

On

Off

Is the check result normal?

Yes

>>

The condition that caused this DTC is intermittent (See Diagnostic Help in Section 08 Transaxle &

Transfer Case).

No

>>

Go to the next step.

2.

ACTUATE TEST

• With X-431, perform the solenoid actuate test.

• The solenoid should be heard.

Is the check result normal?

Yes

>>

Go to step 7.

No

>>

Go to the next step.

DIAGNOSIS & TESTING

 

3.

CHECK 2ND GEAR ELECTRO-MAGNETIC VALVE

• Stop vehicle and turn ignition switch off.

• Disconnect A/T assembly connector.

NUMBER

SOLENOID

WIRE COLOR

1

Low Speed

Electro-Magnetic

Valve (UD)

White / Red

2

2nd Gear

Electro-Magnetic

Valve (2nd)

Yellow / Red

3

Damp clutch

system control

Electro-Magnetic

Valve (DCC)

Brown / Yellow

4

Overdrive

Electro-Magnetic

Valve (OD)

Blue / Yellow

5

Low/reverse

Gear Electro-

Magnetic Valve

(L/R)

Black / Red

• Check 2nd solenoid resistance as shown in the following table:

A/T

ASSEMBLY

TERMINAL

LOW/

REVERSE

GEAR

ELECTRO-

MAGNETIC

VALVE

(L/R)

OVERDRIVE

ELECTRO-

MAGNETIC

VALVE

(OD)

2ND GEAR

ELECTRO-

MAGNETIC

VALVE

(2ND)

LOW

SPEED

ELECTRO-

MAGNETIC

VALVE

(UD)

7 - 10

6 - 10

4 - 9

3 - 9

Resistance

(23°C)

7.3 - 0.69

⍀

Is the check result normal?

Yes

>>

Replace the 2nd gear Electro-Magnetic Valve with a known good one.
With X-431, perform the solenoid actuate test.
− If the solenoid can be heard, the system is normal.
− If the solenoid can’t be heard, go to the next step.

No

>>

Replace the damaged 2nd gear Electro-Magnetic Valve.

DIAGNOSIS & TESTING

08

 

4.

CHECK 2ND GEAR SOLENOID POWER SUPPLY

• Turn ignition switch on.

• Check 2nd gear solenoid power supply between

E-086 terminal 9 and ground in the A/T assembly
connector E-086.

• Voltage should be more than 12 V.

Is the check result normal?

Yes

>>

Go to step 6.

No

>>

Go to the next step.

5.

DETECT MALFUNCTIONING PART

• Check the following:

− Harness connectors A-102, E-105.
− Body fuse and relay box H9, H8, G15.
− Fuse 10 (30A).
− Harness for an open or short between A/T assembly connector and fuse.

Is the check result normal?

Yes

>>

Go to the next step.

No

>>

Repair or replace the open circuit or short to ground or short to power in harness or connectors.

6.

CHECK 2ND GEAR SOLENOID CONTROL CIRCUIT

• Turn ignition switch off.

• Disconnect TCM connector.

• Check for harness continuity between the following terminals:

A/T ASSEMBLY

TERMINAL

TCM

CONNECTOR

TERMINAL

CONTINUITY

4

16

Yes

• Check the harness for short to power and short to ground.

Is the check result normal?

Yes

>>

Go to the next step.

No

>>

Repair or replace the open circuit or short to power or short to ground.

DIAGNOSIS & TESTING

LTSMD080012

 

7.

CHECK DTC

• With the X-431 scan tool, read TCM DTCs.

• Refer to ⬙DTC Confirmation Procedure⬙.

Is DTC 33 still present?

Yes

>>

Replace the TCM.

No

>>

The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.

DIAGNOSIS & TESTING

08