SsangYong: Engine Euro 4. Manual — part 84
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
10
DIAGNOSIS
TCU
Cause:
- The No. 7 solenoid valve controls the operation of the torque
converter clutch.
- The No. 7 solenoid valve circuit is open.
- The solenoid valve connection is short to B+.
Symptom: - The No. 7 solenoid valve stops its operation (OFF).
- The torque converter clutch cannot be locked.
Action:
- Check No. 7 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. 7 solenoid valve if necessary.
- Replace TCU if necessary.
- 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 circuit is short to ground.
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.
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 short to ground.
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.
DTC Code
No. 7 solenoid valve
open
No. 1 solenoid valve
short
No. 2 solenoid valve
short
Defective
Cause and Action
P1739
P1741
P1742
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
11
DIAGNOSIS
TCU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
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 short to ground.
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.
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 short to ground.
Symptom: - The No. 4 solenoid valve is OFF.
- 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 short to ground.
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.
DTC Code
No. 3 solenoid valve
short
No. 4 solenoid valve
short
No. 5 solenoid valve
short
Defective
Cause and Action
P1743
P1744
P1745
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
12
DIAGNOSIS
TCU
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 short to ground.
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.
Cause:
- The No. 7 solenoid valve controls the operation of the torque
converter clutch.
- The No. 7 solenoid valve circuit is short to ground.
Symptom: - The No. 7 solenoid valve stops its operation (OFF).
- The torque converter clutch cannot be locked.
Action:
- Check No. 7 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. 7 solenoid valve if necessary.
- Replace TCU if necessary.
- DTC disappears after turning ignition from OFF to ON.
DTC Code
No. 6 solenoid valve
short
No. 7 solenoid valve
short
Defective
Cause and Action
P1746
P1747
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
13
DIAGNOSIS
TCU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
P2000
P2001
P2002
P2003
P2004
P2005
P2006
P2007
P2008
P200A
P200B
P200C
P2010
Faulty TCU internal watchdog test
Faulty TCU internal watchdog
function
Faulty TCU external watchdog test
Faulty TCU external watchdog func-
tion
Faulty TCU Clock
Faulty TCU RAM
Faulty TCU RAM CAN-Controller 1
Faulty TCU RAM CAN-Controller 2
Faulty TCU ROM
Faulty TCU EEPROM
Faulty TCU CPU (internal)
Faulty TCU program control
No TCU variant coding
• Self-diagnosis with IGN ON.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis with IGN ON.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis with IGN ON.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis with IGN ON.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis with IGN ON.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis with IGN ON.
• When the TCU internal checksum is different from scan-
ner checksum.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis with IGN ON.
• Cycle the IGN switch from OFF to ON. Check and replace
TCU if the trouble still exists.
• Self-diagnosis.
• Check harness contact.
• Self-diagnosis.
• Check harness contact.
• Self-diagnosis with IGN ON.
• When the TCU coding is not exist.
• Check again after TCU coding.
Trouble
Code
Defectives
Action
DIAGNOSIS TROUBLE CODE OF DC5AT
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