SsangYong: Engine Euro 4. Service manual — part 82
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
3
DIAGNOSIS
TCU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
DIAGNOSTIC TROUBLE CODES FOR ION (BTRA) AUTO
TRANSMISSION
Cause:
- Gear position sensor signal of the inhibitor switch is lower than
the normal value (defective gear position sensor)
- Specified value of gear position sensor signal: 0.87 V
Symptom: - Cannot shift to 1st, 3rd and 4th gear.
- Torque converter clucth stops from its operation.
Action:
- Check gear position sensor for short to ground.
- Check inhibitor switch and TCU connector for proper connection.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 30 seconds.
Cause:
- Gear position sensor signal of the inhibitor switch is higher
than the normal value (defective inhibitor switch)
- Specified value of inhibitor switch: 4.12 V
Symptom: - Cannot shift to 1st, 3rd and 4th gear position.
- Torque converter clucth stops from its operation.
Action:
- Check gear position sensor for short to B+.
- Check inhibitor switch and TCU connector for proper connection.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 30 seconds.
DTC Code
Low gear position
sensor input
High gear position
sensor input
Defective
Cause and Action
P0707
P0708
Cause:
- Torque conver clutch cannot be engaged even when solenoid
valve (S7) is operated.
- The rpm of engine and output shaft is not consistent with the
selected shift's gear ratio.
• Allowable slip rpm of torque converter:100 rpm
Symptom: - Torque converter clutch cannot be locked
Action:
- Check solenoid valve (S7) wiring for short to ground or open circuit.
- Replace solenoicd valve (S7) if necessary.
- Check T/M connector TCU connector for their proper connection.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 30 seconds.
Torque converter
clutch cannot be
engaged
P0741
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
4
DIAGNOSIS
TCU
Cause:
- Torque conver clutch is engaged when solenoid valve (S7) is
not operated.
- The rpm of engine and output shaft is not consistent with the
characteristic under the condition with torque converter not
engaged.
• Allowable slip rpm of torque converter < 50 rpm
Symptom: - Torque converter clutch is locked.
Action:
- Check solenoid valve (S7) wiring for short to B+.
- Replace solenoicd valve (S7) if necessary.
- Check T/M connector TCU connector for their proper connection.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 30 seconds.
Cause:
- Oil temperature of T/M exceeds the specified value.
• Oil temperature sensor voltage > 4.88 V
• Oil temperature sensor voltage < 0.21 V
Symptom: - Oil temperature is fixed to 120°C
- Shifting impression is poor.
Action:
- Check T/M oil temperature sensor for short or open circuit.
- Check T/M connector and TCU connector for proper connection.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 3 seconds.
Cause:
- The W/N/P mode switch's connection is intermittently discon-
nected (the input of the mode switch changes rapidly).
Symptom: - The switch is fixed to normal mode.
Action:
- Check W/N/P mode switch input circuit for short or open circuit.
- Check W/N/P mode switch wiring.
- Replace W/N/P mode switch if necessary.
- Returns to the normal operation if the failure does not occur
within 3 seconds.
DTC Code
Torque converter
clutch engaged
Defective T/M oil
temperature sensor
Defective W/N/P
mode switch
Defective
Cause and Action
P0742
P0710
P0790
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
5
DIAGNOSIS
TCU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
Cause:
- The engine rpm signal (CAN) is out of specified value or there is
no engine rpm signal.
• Engine rpm < 0 rpm
• Engine rpm > 7000 rpm
Symptom: - The engine rpm corresponding to the max. engine torque is
applyed to the shifting condition.
Action:
- Check ECU and TCU connectors for poor contact.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 3 seconds.
Cause:
- The output shaft signal (CAN) is out of specified value or there
is no output shaft signal.
• Output shaft rpm < 0 rpm
• Output shaft rpm > 9000 rpm
- The actual vehicle speed is 0 while other signals indicate that
vehicle is moving.
Symptom: - Cannot shift down by limiting the engine rpm to prevent the
engine from overrunning.
Action:
- Check ECU and TCU connectors for poor contact.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 3 seconds and the rpm is over 0.
Cause:
- The TCU supply voltage is low or there is no measured voltage
value.
Symptom: - Cannot shift to 1st gear position.
- Cannot shift to other gear positions due to the low supply voltage.
- No. 6 solenoid valve (S6) stops from its operation.
Action:
- Check TCU terminal for poor contact, bending or deformation.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 30 seconds.
Cause:
- The TCU supply voltage is high.
• TCU supply voltage > 16.5 V
Symptom: - All solenoid valves stop from their operation when high battery
voltage is detected.
- Enters into the emergency mode.
Action:
- Check TCU terminal for short to B+ or short to ground.
- Replace TCU if necessary.
- Returns to the normal operation if the failure does not occur
within 30 seconds.
DTC Code
Abnormal engine
rpm (CAN)
Abnormal output
shaft rpm (CAN)
Low TCU supply
voltage
High TCU supply
voltage
Defective
Cause and Action
P1703
P1704
P1708
P1709
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