SsangYong Korando II (1996-2006 year). Manual — part 62
M162 ENGINE CONTROLS 1F1 -- 83
DAEWOO MY_2000
Failure
Code
Description
Trouble Area
Maintenance Hint
81
Bank 1 system short
term fuel trim adaptation
below lean threshold
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
93
Bank 1 system short
term fuel trim adaptation
above rich threshold
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
96
Bank 1 system short
term fuel trim at rich
stop
When recognition the short
term fuel trim that more than
nominal threshold
97
Bank1 system short
term fuel trim at lean
stop
When recognition the short
term fuel trim that less than
nominal threshold
D
Inspection the intake air leakage
D
Inspection the injection quantities with
98
Bank 1 system idle
adaptation failure (above
rich threshold)
When recognition the long
term fuel trim exceeds rich
threshold
D
Inspection the injection quantities with
injector block or leakage
D
Inspection the exhaust leakage
D
Inspection the ECM
99
Bank 1 system idle
adaptation failure (below
rich threshold)
When recognition the long
term fuel trim exceeds lean
threshold
p
100
Bank 1 system learning
control failure (rich, low
load)
When recognition the long
term fuel trim exceeds rich
threshold
101
Bank 1 system learning
control failure (lean, low
load)
When recognition the long
term fuel trim exceeds lean
threshold
102
Bank 1 system learning
control failure (rich, high
load)
When recognition the long
term fuel trim exceeds rich
threshold
103
Bank 1 system learning
control failure (rich, low
load)
When recognition the long
term fuel trim exceeds lean
threshold
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 pro-
duces 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.
1F1 -- 84 M162 ENGINE CONTROLS
DAEWOO MY_2000
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 cause may be in cable, oxygen sensor or
ECM
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 A
Notice: If the measured value is not within the specified value, the possible cause may be in cable, oxygen sensor or
ECM
M162 ENGINE CONTROLS 1F1 -- 85
DAEWOO MY_2000
BLANK
1F1 -- 86 M162 ENGINE CONTROLS
DAEWOO MY_2000
ENGINE CONTROL MODULE
YAA1F830
The Engine Control Module (ECM), located inside the right side kick panel, is the control center of the fuel injection
system. It constantly looks at the information from various sensors and controls the systems that affect the vehicle’s
performance. Engine rpm and air mass are used to measure the air intake quantity resulting in fuel injection metering.
The ECM also performs the diagnostic functions of the system. It can recognize operational problems, store failure
code(s) which identify the problem areas to aid the technician in making repairs.
There are no serviceable parts in the ECM. The calibrations are stored in the ECM in the Programmable Read Only
Memory (PROM).
The ECM supplies either 5 or 12 volts to power the sensors or switches. This is done through resistance in the ECM
which are so high in value that a test light will not come ON when connected to the circuit. In some cases, even an
ordinary shop voltmeter will not give and accurate reading because its resistance is too low. You must use a digital
voltmeter with a 10 Mohm input impedance to get accurate voltage readings. The ECM controls output circuits such as
the ignition coils, the fuel injectors, the fuel pump relay, the intake manifold resonance flap, the camshaft actuator, the
canister purge valve, etc., by controlling the ground circuit.
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