SsangYong Rexton. Service manual — part 437
M161 ENGINE CONTROLS 1F2-71
SSANGYONG Y200
YAD1F590
SSANGYONG Y200
1F2-72 M161 ENGINE CONTROLS
Failure
Code
Description
Trouble Area
Maintenance Hint
Oxygen sensor high
voltage
Oxygen sensor low
voltage
Oxygen sensor no
activity detected
Oxygen sensor not lean
after overrun fuel
shut-off
Oxygen sensor slow
response
Oxygen sensor heater
failure
Oxygen sensor heater
short circuit to battery
Oxygen sensor heater
short circuit to ground
or open
When recognition the output
that more than nominal
threshold, malfunction of
sensing voltage.
When recognition the output
that more than nominal
threshold, malfunction of
sensing voltage.
When recognition the output
that not active the sensor etc.
When recognition the output
that no lean signal after
overrun fuel shut-off
When slow response of sensor
signal
When recognition the heating
circuit
When recognition the heating
currents that more or less than
set values (less than 0.2 A or
more than 2 A)
When recognition the heating
voltages than less than set
values (less than 2 v)
•
Monitoring the actual output signal
through scan tool
•
Inspection the ECM pin 16, 17 about
short circuit or open with bad contact
•
Inspection the oxygen sensor
•
Inspection the ECM
80
89
82
83
84
85
86
87
YAD1F600
•
Monitoring the heating status through
scan tool
•
Inspection the ECM pin 9 about short
circuit or open with bad contact
•
Inspection the heating power source
•
Inspection the heating circuit of oxygen
sensor
•
Inspection the ECM
M161 ENGINE CONTROLS 1F2-73
SSANGYONG Y200
Failure
Code
Description
Trouble Area
Maintenance Hint
Bank 1 system short
term fuel trim
adaptation below lean
threshold
Bank 1 system short
term fuel trim
adaptation above rich
threshold
Bank 1 system short
term fuel trim at rich
stop
Bank 1 system short
term fuel trim at lean
stop
Bank 1 system idle
adaptationfailure
(above rich threshold)
Bank 1 system idle
adaptation failure
(below rich threshold)
Bank 1 system learning
control failure
(rich, low load)
Bank 1 system learning
control failure
(lean, low load)
Bank 1 system learning
control failure
(rich, high load)
Bank 1 system learning
control failure
(rich, low load)
When recognition the value
less than nominal control
threshold, it means that when
big deviation in control range
of adaptation values through
fuel and air mixture formation
When recognition the value
more than nominal control
threshold, it means that when
big deviation in control range
of adaptation values through
fuel and air mixture formation
When recognition the short
term fuel trim that more than
nominal threshold
When recognition the short
term fuel trim that less than
nominal threshold
When recognition the long
term fuel trim exceeds rich
threshold
When recognition the long
term fuel trim exceeds lean
threshold
When recognition the long
term fuel trim exceeds rich
threshold
When recognition the long
term fuel trim exceeds lean
threshold
When recognition the long
term fuel trim exceeds rich
threshold
When recognition the long
term fuel trim exceeds lean
threshold
•
Inspection the intake air leakage
•
Inspection the injection quantities with
injector block or leakage
•
Inspection the exhaust leakage
•
Inspection the ECM
81
93
96
97
98
99
100
101
102
103
SSANGYONG Y200
1F2-74 M161 ENGINE CONTROLS
Oxygen Sensor Heating Voltage Inspection
1. Maintain the engine speed is at idle while the coolant temperature is over 80 ° C.
2. Measure the oxygen sensor signal voltage between the ECM terminal No. 11 and No. 9.
Specified Value
11 ~ 14 V
Notice: If the measured value is not within the specified value, the possible cause may be in cable, oxygen
sensor or ECM
Oxygen sensor Heating Current Consumption Inspection
1. Turn the ignition switch to “ON” position.
2. Measure the oxygen sensor heating current consumption between the ECM terminal No. 9 and No. 5.
Specified Value
0.2 ~ 2.0 V
Notice: If the measured value is not within the specified value, the possible cause may be in cable, oxygen
sensor or ECM
Circuit Description
In order to control emissions, a catalytic converter is used to covert harmful emissions into harmless water vapor and
carbon dioxide. The ECM has the ability to monitor this process by using a oxygen sensor. The oxygen sensor
produces and output signal which indicates the storage capacity of the catalyst. This in turn indicates the catalyst’s
ability to convert exhaust emission effectively. If the oxygen sensor pigtail wiring, connector, or terminal is damaged.
Do not attempt to repair the wiring, connector, or terminals. In order for the sensor to function properly, it must have
a clean air reference provided to it. This clean air reference is obtained by way of the oxygen sensor wire(s). Any
attempt to repair the wires, connector, or terminal and degrade the oxygen sensor performance.
Oxygen Sensor Signal Voltage Inspection
1. Maintain the engine speed is at idle while the coolant temperature is over 80 °C.
2. Measure the oxygen sensor signal voltage between the ECM terminal No. 16 and No. 17.
Specified Value
0.2 ~ 1.0 V
Notice: If the measured value is not within the specified value, the possible causemay bein cable, oxygen
sensor or ECM
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