SsangYong: Engine Euro 4. Service manual — part 74
O : Turning on when the condition is occurred twice consecutively
•
: Turning on when the condition is occurred once
New DTC
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
84
DIAGNOSIS
ECU
DTC
Trouble
Engine CHECK
warning lamp
Help
Related
I t e m
No.3 Oxygen Sensor -
Lean Indication (When
Decelerating)
xxxxx
Condition
- No.3 oxygen sensor is defective.
There is no "LEAN" signal after shutting off the fuel.
xxxxx
Specification
- Specified voltage:
Below 100 ~ 900 mV
- Insulating resistance:
10 M
Ω (350°C)
300 k
Ω (850°C)
Resistance between heater and sensor:
10 k
Ω (850°C)
Between sensor circuit and housing
- Operating temperature: 850°C
Gas temperature at ceramic tip
- Internal resistance:
1 k
Ω
xxxxx
Actions
1. Measure the actual output value using SCAN-100.
2. Inspect the circuits and terminals of the ECU pin No. 22 and 23.
3. Inspect the oxygen sensor.
4. Check the ECU.
O
No.3
Oxygen
Sensor
(Installed
Before
Catalytic
Converter)
P0154
No.3 Oxygen Sensor -
Faulty Heating Current
xxxxx
Condition
- No.3 oxygen sensor is improperly heated.
The heating current is below or over the specified range
(below 0.2 A or over 2 A).
xxxxx
Specification
- Operating current: below 1.6 A
- Initial current: below 6.0 A for 2 seconds
xxxxx
Actions
1. Check the heating condition using SCAN-100.
2. Inspect the circuit and terminal of the ECU pin No. 6.
3. Inspect the heating power supply.
4. Inspect the heating circuit of oxygen sensor.
5. Check the ECU.
P0155
O
No.3 Oxygen Sensor
Heater - Short circuit to
B+
xxxxx
Condition
- No.3 oxygen sensor is improperly heated.
The heating current is below or over the specified range
(below 0.2 A or over 2 A).
xxxxx
Specification
- Operating current: below 1.6 A
- Initial current: below 6.0 A for 2 seconds
xxxxx
Actions
1. Check the heating condition using SCAN-100.
2. Inspect the circuit and terminal of the ECU pin No. 6.
3. Inspect the heating power supply.
4. Inspect the heating circuit of oxygen sensor.
5. Check the ECU.
O
No.3 Oxygen Sensor
Heater - Open or Short
circuit to Ground
xxxxx Condition
- No.3 oxygen sensor is improperly heated.
The heating current is below or over the specified range
(below 0.2 A or over 2 A).
xxxxx
Specification
- Operating current: below 1.6 A
- Initial current: below 6.0 A for 2 seconds
xxxxx
Actions
1. Check the heating condition using SCAN-100.
2. Inspect the circuit and terminal of the ECU pin No. 6.
3. Inspect the heating power supply.
4. Inspect the heating circuit of oxygen sensor.
5. Check the ECU.
O
O : Turning on when the condition is occurred twice consecutively
•
: Turning on when the condition is occurred once
New DTC
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
85
DIAGNOSIS
ECU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
DTC
Trouble
Engine CHECK
warning lamp
Help
Related
I t e m
No.4
Oxygen
Sensor
(Installed
After
Catalytic
Converter)
No.4 Oxygen Sensor -
Lean Indication (When
Decelerating)
xxxxx Condition
- No.4 oxygen sensor is defective.
There is no "LEAN" signal after shutting off the fuel.
xxxxx
Specification
- Specified voltage:
100 ~ 900 mV
- Insulating resistance:
10 M
Ω (350°C)
300 k
Ω (850°C)
Resistance between heater and sensor:
10 M
Ω (850°C)
Between sensor circuit and housing
- Operating temperature: 850 °C
Gas temperature at ceramic tip
- Internal resistance:
1 k
Ω
xxxxx
Actions
1. Measure the actual output value using SCAN-100.
2. Inspect the circuits and terminals of the ECU pin No. 25 and 26.
3. Inspect the oxygen sensor.
4. Check the ECU.
O
P0160
No.4 Oxygen Sensor -
Below the Minimum
Permissible Voltage
xxxxx
Specification
- Specified voltage:
100 ~ 900 mV
- Insulating resistance:
10 M
Ω (350°C)
300 k
Ω (850°C)
Resistance between heater and sensor:
10 M
Ω (850°C)
Between sensor circuit and housing
- Operating temperature: 850 °C
Gas temperature at ceramic tip
- Internal resistance:
1 k
Ω
xxxxx
Actions
1. Measure the actual output value using SCAN-100.
2. Inspect the circuits and terminals of the ECU pin No. 25 and 26.
3. Inspect the oxygen sensor.
4. Check the ECU.
P0157
O
No.4 Oxygen Sensor -
Overvoltage
O
P0158
xxxxx Condition
- No.4 oxygen sensor is defective.
The output value is not within the specified range.
The sensing voltage is not in the specified range.
xxxxx
Specification
- Specified voltage:
100 ~ 900 mV
- Insulating resistance:
10 M
Ω (350°C)
300 k
Ω (850°C)
Resistance between heater and sensor:
10 M
Ω (850°C)
Between sensor circuit and housing
- Operating temperature: 850°C
Gas temperature at ceramic tip
-Internal resistance:
1 k
Ω
xxxxx
Actions
1. Measure the actual output value using SCAN-100.
2. Inspect the circuits and terminals of the ECU pin No. 25 and 26.
3. Inspect the oxygen sensor.
4. Check the ECU.
O : Turning on when the condition is occurred twice consecutively
•
: Turning on when the condition is occurred once
New DTC
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
86
DIAGNOSIS
ECU
DTC
Trouble
Engine CHECK
warning lamp
Help
Related
I t e m
No.4
Oxygen
Sensor
(Installed
After
Catalytic
Converter)
No.4 Oxygen Sensor -
Poor Heating
xxxxx
Specification
- Operating current: below 1.6 A
- Initial current: below 6.0 A for 2 seconds
xxxxx
Actions
1. Check the heating condition using SCAN-100.
2. Inspect the circuit and terminal of the ECU pin No. 3.
3. Inspect the heating power supply.
4. Inspect the heating circuit of oxygen sensor.
5. Check the ECU.
P0161
O
xxxxx
Specification
- Operating current: below 1.6 A
- Initial current: below 6.0 A for 2 seconds
xxxxx
Actions
1. Check the heating condition using SCAN-100.
2. Inspect the circuit and terminal of the ECU pin No. 3.
3. Inspect the heating power supply.
4. Inspect the heating circuit of oxygen sensor.
5. Check the ECU.
O
No.4 Oxygen Sensor
Heater - Open or Short
circuit to Ground
xxxxx
Specification
- Operating current: below 1.6 A
- Initial current: below 6.0 A for 2 seconds
xxxxx
Actions
1. Check the heating condition using SCAN-100.
2. Inspect the circuit and terminal of the ECU pin No. 3.
3. Inspect the heating power supply.
4. Inspect the heating circuit of oxygen sensor.
5. Check the ECU.
O
No.4 Oxygen Sensor
Heater - Short circuit to
B+
No.1
Oxygen
Sensor
(Installed
Before
Catalytic
Converter)
Short-term Learning
Control of Air/Fuel
Ratio: Fuel Rich
xxxxx
Specification
- Specified voltage:
100 ~ 900 mV
- Insulating resistance:
10 M
Ω (350°C)
300 k
Ω (850°C)
Resistance between heater and sensor:
10 k
Ω (850°C)
- Between sensor circuit and housing
- Operating temperature: 850°C
Gas temperature at ceramic tip
- Internal resistance:
1 k
Ω
xxxxx
Actions
1. Measure the actual output value using SCAN-100.
2. Inspect the circuits and terminals of the ECU pin No. 16 and 17.
3. Inspect the oxygen sensor.
4. Check the ECU.
P0171
O
O : Turning on when the condition is occurred twice consecutively
•
: Turning on when the condition is occurred once
New DTC
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
87
DIAGNOSIS
ECU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
DTC
Trouble
Engine CHECK
warning lamp
Help
Related
I t e m
Learning Control
Malfunction - Rich at
Idling
xxxxx
Actions
1. Check the oxygen sensor signal and heating line.
2. Check the purge valve unit and circuit.
3. Check the coolant temperature sensor.
4. Check the ignition coil and spark plug.
5. Check the HFM sensor's intake air temperature.
•
Learning Control
Malfunction - Rich
under Low Load
xxxxx
Actions
1. Check the oxygen sensor signal and heating line.
2. Check the purge valve unit and circuit.
3. Check the coolant temperature sensor.
4. Check the ignition coil and spark plug.
5. Check the HFM sensor's intake air temperature.
•
Learning Control
Malfunction - Rich
under High Load
xxxxx
Actions
1. Check the oxygen sensor signal and heating line.
2. Check the purge valve unit and circuit.
3. Check the coolant temperature sensor.
4. Check the ignition coil and spark plug.
5. Check the HFM sensor's intake air temperature.
•
Fuel
Correction
Air/Fuel Ratio Control
Malfunction - Fuel Rich
xxxxx
Actions
1. Check the oxygen sensor signal and heating line.
2. Check the purge valve unit and circuit.
3. Check the coolant temperature sensor.
4. Check the ignition coil and spark plug.
5. Check the HFM sensor's intake air temperature.
P0171
•
Air/Fuel Ratio Control
Malfunction - Fuel Lean
xxxxx
Actions
1. Check the oxygen sensor signal and heating line.
2. Check the purge valve unit and circuit.
3. Check the coolant temperature sensor.
4. Check the ignition coil and spark plug.
5. Check the HFM sensor's intake air temperature.
•
P0172
Learning Control
Malfunction - Lean at
Idling
xxxxx
Actions
1. Check the oxygen sensor signal and heating line.
2. Check the purge valve unit and circuit.
3. Check the coolant temperature sensor.
4. Check the ignition coil and spark plug.
5. Check the HFM sensor's intake air temperature.
•
Learning Control
Malfunction - Lean
under Low Load
xxxxx
Actions
1. Check the oxygen sensor signal and heating line.
2. Check the purge valve unit and circuit.
3. Check the coolant temperature sensor.
4. Check the ignition coil and spark plug.
5. Check the HFM sensor's intake air temperature.
•
Learning Control
Malfunction - Lean
under High Load
xxxxx
Actions
1. Check the oxygen sensor signal and heating line.
2. Check the purge valve unit and circuit.
3. Check the coolant temperature sensor.
4. Check the ignition coil and spark plug.
5. Check the HFM sensor's intake air temperature.
•
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