SsangYong: Engine Euro 4. Service manual — part 56
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
12
DIAGNOSIS
ECU
Limp
Home
Mode
Immedi-
ately
Engine Stop
Delayed
Engine
Stop
Torque
Reduction
(max.50%)
Torque
Reduction
(max.20%)
New DTC
DTC
Trouble
Help
P0112
Intake Air Temperature Cir-
cuit Malfunction - Open
- The intake air temperature sensing
value is lower than maximum value
of 150°C: Open
- Check the supply voltage to sensor.
• Actual air temperature vs. Voltages
• 20°C: 2.65
Ω
• 30°C: 2.18
Ω
• 50°C: 1.40
Ω
• Recovery values when intake air
temperature sensor failure: 50°C
- Check the sensor wiring harness.
• Check the source power circuit
for short to ground.
- Check the sensor resistance.
• Actual air temperature vs. Resis-
tance
• -40°C: 39.260
Ω
• -20°C: 13.850
Ω
• 0°C: 5.499
Ω
• 20°C: 2.420
Ω
• 40°C: 1.166
Ω
• 60°C: 0.609
Ω
• 80°C: 0.340
Ω
• 100°C: 0.202
Ω
• 120°C: 0.127
Ω
• Recovery values when intake air
temperature sensor failure: 50°C
- Check the ECU wiring harness.
• Check the ECU pin #64 and #84
for open.
- Replace the ECU if required.
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
13
DIAGNOSIS
ECU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
Limp
Home
Mode
Immedi-
ately
Engine Stop
Delayed
Engine
Stop
Torque
Reduction
(max.50%)
Torque
Reduction
(max.20%)
New DTC
DTC
Trouble
Help
P0113
Intake Air Temperature Cir-
cuit Malfunction - Short
- The intake air temperature sensing
value is lower than maximum value
of 150°C: Open
- Check the supply voltage to sensor.
• Actual air temperature vs. Voltages
• 20°C: 2.65
Ω
• 30°C: 2.18
Ω
• 50°C: 1.40
Ω
• Recovery values when intake air
temperature sensor failure: 50°C
- Check the sensor wiring harness.
• Check the source power circuit
for short to ground.
- Check the sensor resistance.
• Actual air temperature vs. Resis-
tance
• -40°C: 39.260
Ω
• -20°C: 13.850
Ω
• 0°C: 5.499
Ω
• 20°C: 2.420
Ω
• 40°C: 1.166
Ω
• 60°C: 0.609
Ω
• 80°C: 0.340
Ω
• 100°C: 0.202
Ω
• 120°C: 0.127
Ω
• Recovery values when intake air
temperature sensor failure: 50°C
- Check the ECU wiring harness.
• Check the ECU pin #64 and #84
for open.
- Replace the ECU if required.
P0115
Supply Voltage Fault to
Coolant Temperature
Sensor
- Check if the supply voltage of
approx. 12 V is applied.
P0117
Coolant Temperature
Sensor Malfunction -
Open
- Malfunction in recognition of coolant
temperature
• Less than minimum values
(Circuit Open)
• External power supply malfunction
- If Fuel temperature is invalid, the pre-
vious coolant temperature is retained.
- Check the supply voltage to sensor.
- Actual air temp. vs. Resistance
• 20°C: 2449
Ω
• 50°C: 826.3
Ω
• 80°C: 321.4
Ω
• 100°C: 112.9
Ω
- Check the wiring harness (open
and poor contact).
• ECU pin #101 and #102
- Visually check the sensor and
replace if required.
- Replace the ECU if required.
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
14
DIAGNOSIS
ECU
Limp
Home
Mode
Immedi-
ately
Engine Stop
Delayed
Engine
Stop
Torque
Reduction
(max.50%)
Torque
Reduction
(max.20%)
New DTC
P0122
P0123
Accelerator Pedal Sensor
#1 Malfunction - Open
Accelerator Pedal Sensor
#1 Malfunction - Short
- Out of range about potentiometer 1
of pedal sensor: lower than
specified values
- Check the supply voltage to sensor.
- Check the wiring harness.
• Check the circuit for open and short.
• Check the ECU pin #71, #53 for
open and poor contact.
- Check the accelerator pedal.
- Check the ECU wiring harness.
- Replace the ECU if required.
- Out of range about potentiometer 1
of pedal sensor: higher than
specified values
- Check the supply voltage to sensor.
- Check the wiring harness.
• Check the circuit for open and short.
• Check the ECU pin #71, #53 for
short and poor contact.
- Check the accelerator pedal.
- Check the ECU wiring harness.
- Replace the ECU if required.
DTC
Trouble
Help
P0118
Coolant Temperature Sen-
sor Malfunction - Short
- Malfunction in recognition of coolant
temperature
• More than maximum values
(Circuit Short)
• External power supply malfunc-
tion
- If Fuel temperature is invalid, the pre-
vious coolant temperature is retained.
- Check the supply voltage to sensor.
- Actual air temp. vs. Resistance
• 20°C: 2449
Ω
• 50°C: 826.3
Ω
• 80°C: 321.4
Ω
• 100°C: 112.9
Ω
- Check the wiring harness (short
and poor contact).
• ECU pin #101 and #102
- Visually check the sensor and
replace if required.
- Replace the ECU if required.
P0120
Accelerator Pedal Sensor
#1 Malfunction - Supply
Voltage Fault
O
- The supply voltage is faulty.
- Check the supply voltage to sensor.
- Check the wiring harness.
• Check the circuit for open and short.
• Check the ECU pin #72, #53 for
open and short.
- Check the accelerator pedal.
- Check the ECU wiring harness.
- Replace the ECU if required.
O
O
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
15
DIAGNOSIS
ECU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
Limp
Home
Mode
Immedi-
ately
Engine Stop
Delayed
Engine
Stop
Torque
Reduction
(max.50%)
Torque
Reduction
(max.20%)
New DTC
DTC
Trouble
Help
P0147
P0148
P0171
P0172
P0173
P0174
P0175
Impossible to Learn Idle
MDP
Impossible to Learn
Drive MDP
Insufficient MDP of
Injector #1
Insufficient MDP of
Injector #2
Insufficient MDP of
Injector #3
Insufficient MDP of
Injector #4
Insufficient MDP of
Injector #5
- Causes (Idle range MDP learning)
• The MDP is not learned again
until driving over 50,000 km after
the MDP is learned.
- Conditions for MDP learning (Idle)
• Leaning twice for each cylinder
(attempt every 5 sec.)
• Initial MDP learning: coolant
temperature > 60°C
• Fuel temperature: 0 ~ 80°C
• Vehicle speed: Idle.
• The tachometer's needle
vibrates while learning idle MDP.
• Replace ECU after learning.
- Causes
• It occurs twice for each cylilnder
if MDP is not learned again until
driving over 50,000 km after the
MDP is learned.
- Actions
• Check knock sensor and wiring.
• Check injector specification.
• Check C3I/C2I.
- MDP learning value is decreased
due to aged injector #1.
- MDP learning value is decreased
due to aged injector #2.
- MDP learning value is decreased
due to aged injector #3.
- MDP learning value is decreased
due to aged injector #4.
- MDP learning value is decreased
due to aged injector #5.
P0180
Fuel Temperature
Sensor - Malfunction
- The power source circuit is faulty for
fuel temperature sensor. (Fuel tem-
perature sensor is mounted in high
pressure pump)
- Actual fuel temp. vs. Resistance
• -40°C: 75.780
Ω -20°C: 21.873 Ω
• -10°C: 12.462
Ω 0°C: 7.355 Ω
• 10°C: 4.481
Ω
20°C: 2.812
Ω
• 25°C: 2.252
Ω
30°C: 1.814
Ω
• 40°C: 1.199
Ω
50°C: 0.811
Ω
• 70°C: 0.394
Ω
90°C: 0.206
Ω
• 120°C: 0.087
Ω
- Recovery values when fuel
temperature sensor failure: 95°C
- Check the supply voltage to sensor.
- Check the wiring harness for open,
short and poor contact.
• ECU pin: #109, #110
- Check the ECU wiring and replace
the ECU if required.
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