SsangYong Rexton. 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