SsangYong: Engine Euro 4. Manual - part 83

 

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SsangYong: Engine Euro 4. Manual - part 83

 

 

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

6

DIAGNOSIS

TCU

Cause:

- The accelerator pedal signal (CAN) is out of the specified value.

• Accelerator pedal signal < 0 %

• Accelerator pedal signal > 100 %

Symptom: - Cannot shift to 4th gear position.

- Torque converter clucth stops from its operation.

- The interior default value is applied for shift determination (if the

accelerator pedal signal is defective, ECU selects the default
value and sends it and error message to TCU via CAN line).

- The accelerator pedal signal is not used for P, R, N B2.

Action:

- Check ECU and TCU connectors for poor contact and their

terminals for bend or deformation.

- Replace TCU if necessary.

- Returns to the normal operation if the failure does not occur

within 30 seconds.

Cause:

- The vehicle coding stored in EEPROM is defective (self-test

when IGN ON).

Symptom: - Determines the vehicle coding value via CAN communication

or selects 0 for the coding value.

- Shifting impression is poor.

Action:

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

Cause:

- VPS (Variable pressure solenoid valve) is used for controlling

clutch and band pressure while shifting.

- The VPS offset stored in EEPROM is incorrect (self-test when

IGN ON).

• VPS offset > 120 mA

Symptom: - Shifting impression is poor.

Action:

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

Cause:

- RAM operates abnormally. (self-test when IGN ON)

Symptom: - No  output signal.

- Enters into the emergency mode.

Action:

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

Cause:

- The program memory is defective (self-test when IGN ON).

- The calculated checksum value is not consistent with the stored

checksum value.

Symptom: - No  output signal.

- Enters into the emergency mode.

Action:

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

DTC Code

Defective accelera-
tor pedal signal
(CAN)

Defective vehicle
coding

Abnormal VPS
offset

Defective RAM

Defective ROM

Defective

Cause and Action

P1713

P1714

P1715

P1717

P1718

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

7

DIAGNOSIS

TCU

BRAKE

ECU

TCU

A/BAG

TC

RK-STICS

FFH

R/SENSOR

FA

T

C

TGS-LEVER

P/TRUNK

CCCS

Cause:

- Cannot use information necessary for TCU via CAN communication.

Symptom: - The default value is used for all CAN signals.

- Enters into the emergency mode.

Action:

- Check ECU and TCU connectors wiring for poor contact.

- Check ECU and TCU connectors' terminals for bend or

deformation.

- Replace TCU if necessary.

- Returns to the normal operation if the failure does not occur

within 30 seconds.

Cause:

- EEPROM memory is defective.

- The calculated checksum value is not consistent with the stored

checksum value or the error occurs in EEPROM communication.
(self-test when IGN ON)

Symptom: - Determines the vehicle coding value via CAN communication

or selects 0 for the coding value.

- Shifting impression is poor.

Action:

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

Cause:

- Cannot detect the vehicle coding through EEPROM or CAN

communication.

Symptom: - Selects 0 for the coding value.

- Enters into the emergency mode.

Action:

- Check TCU connector and terminals for poor contact.

- DTC disappears after turning ignition from OFF to ON.

Cause:

- The No. 1 solenoid valve operates with the No. 2 solenoid valve

to control the oil flow for the 1-2 shift valve.

- The No.1 solenoid valve internal circuit or solenoid valve wiring

is open.

- The solenoid valve connection is short to B+.

Symptom: - The No. 1 solenoid valve is OFF.

- Enters into the emergency mode.

Action:

- Check No. 1 solenoid valve wiring and connector (especially its

ground condition).

- Specified resistance value: 22 ~ 30

Ω

- Check TCU connector for proper connection and its terminal for

bend or deformation.

- Replace No.1 solenoid valve if necessary.

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

DTC Code

Abnormal CAN
communication

Defective EEPROM

Incorrect vehicle
model

No. 1 solenoid valve
open

Defective

Cause and Action

P1719

P1720

P1722

P1733

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

8

DIAGNOSIS

TCU

Cause:

- The No. 2 solenoid valve operates with the No. 1 solenoid valve

to control the oil flow for the 2-3 shift valve.

- The No. 2 solenoid valve circuit is open.

- The solenoid valve connection is short to B+.

Symptom: - The No. 2 solenoid valve is OFF.

- Enters into the emergency mode.

Action:

- Check No. 2 solenoid valve wiring and connector (especially,

its ground condition).

- Specified resistance value: 22 ~ 30

Ω

- Check TCU connector for proper connection and its terminal for

bend or deformation.

- Replace No.2 solenoid valve if necessary.

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

Cause:

- The No. 3 solenoid valve operates with the No. 4 solenoid valve

to shift smoothly and control the shifting order.

- The No. 3 solenoid valve turns the clutch regulator valve ON

and OFF.

- The No. 3 solenoid valve circuit is open.

- The solenoid valve connection is short to B+.

Symptom: - The No. 3 solenoid valve is OFF.

- Shifting impression is poor.

Action:

- Check No. 3 solenoid valve wiring and connector (especially,

its ground condition).

- Specified resistance value: 22 ~ 30

Ω

- Check TCU connector for proper connection and its terminal for

bend or deformation.

- Replace No.3 solenoid valve if necessary.

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

DTC Code

No. 2 solenoid valve
open

No. 3 solenoid valve
open

Defective

Cause and Action

P1734

P1735

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

9

DIAGNOSIS

TCU

BRAKE

ECU

TCU

A/BAG

TC

RK-STICS

FFH

R/SENSOR

FA

T

C

TGS-LEVER

P/TRUNK

CCCS

Cause:

- The No. 4 solenoid valve operates with the No. 3 solenoid valve

to shift smoothly and control the shifting order.

- The No. 4 solenoid valve turns the clutch regulator valve ON and OFF.

- The No. 4 solenoid valve circuit is open.

- The solenoid valve connection is short to B+.

Symptom: - The No. 4 solenoid valve is OFF or ON.

- Shifting impression is poor.

Action:

- Check No. 4 solenoid valve wiring and connector (especially,

its ground condition).

- Specified resistance value: 22 ~ 30

Ω

- Check TCU connector for proper connection and its terminal for

bend or deformation.

- Replace No.4 solenoid valve if necessary.

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

Cause:

- The No. 5 solenoid valve is a variable solenoid valve to change

the pressure for shifting.

- The No. 5 solenoid valve circuit is open.

- The solenoid valve connection is short to B+.

Symptom: - The No. 4 solenoid valve is always OFF.

- Shifting impression is poor.

Action:

- Check No. 5 solenoid valve wiring and connector (especially,

its ground condition).

- Specified resistance value: 3.6 ~ 5.5

Ω

- Check TCU connector for proper connection and its terminal for

bend or deformation.

- Replace No.5 solenoid valve if necessary.

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

Cause:

- The No. 6 solenoid valve is used to set the hydraulic line pres-

sure to HIGH/LOW level.

- The No. 6 solenoid valve circuit is open.

- The solenoid valve connection is short to B+.

Symptom: - The hydraulic line pressure is high. (No. 6 solenoid valve stops

its operation)

- Cannot to shift to 1st gear position.

Action:

- Check No. 6 solenoid valve wiring and connector (especially,

its ground condition).

- Specified resistance value: 22 ~ 30

Ω

- Check TCU connector for proper connection and its terminal for

bend or deformation.

- Replace No. 6 solenoid valve if necessary.

- Replace TCU if necessary.

- DTC disappears after turning ignition from OFF to ON.

DTC Code

No. 4 solenoid valve
open

No. 5 solenoid valve
open

No. 6 solenoid valve
open

Defective

Cause and Action

P1736

P1737

P1738

 

 

 

 

 

 

 

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