SsangYong: Engine Euro 4. Service 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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