SsangYong Rexton. Manual — part 414
M162 ENGINE CONTROLS 1F1-73
SSANGYONG Y200
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
adaptation failure
(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)
Failure
Code
Description
Trouble Area
Maintenance Hint
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
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 pig tail 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.
SSANGYONG Y200
1F1-74 M162 ENGINE CONTROLS
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
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.
Notice: If the measured value is not within the specified value, the possible cause may be in cable, oxygen
sensor or ECM
Specified Value
0.2 ~ 2.0 A
SSANGYONG Y200
1F1-76 M162 ENGINE CONTROLS
YAD1F610
ENGINE CONTROL MODULE
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.
1 Cover
2 Plate
3 Connector
4 Flat Pin
Vehicle Side : No. 1-12
Engine Side : No. 61-72
5 Pin
Vehicle Side : No. 13-60
Engine Side : No. 73-120
A Vehicle Side Connector : Black
B Engine Side Connector : Gray
M162 ENGINE CONTROLS 1F1-77
SSANGYONG Y200
CAN communication
failure: ASR/MSR
CAN communication
failure: ABS
CAN communication
failure: TCU (A/T only)
YAD1F620
Failure
Code
Description
Trouble Area
Maintenance Hint
When CAN signal message
missing or implausibility for
ASR/MSR unit or not
initialized condition
When CAN signal message
missing or implausibility for
ABS unit or not initialized
condition
When CAN signal message
missing or implausibility for
TCU unit or not initialized
condition
•
Inspection the ASR unit with CAN
connection
•
Inspection the Engine Control Module
(ECM) pin 38, 37 about short circuit or
open with bad contact
•
Inspection the ECM
•
Inspection the ABS unit with CAN
connection
•
Inspection the ECM pin 38, 37 about
short circuit or open with bad contact
•
Inspection the ECM
•
Inspection the TCM unit with CAN
connection
•
Inspection the ECM pin 38, 37 about
short circuit or open with bad contact
•
Inspection the ECM
23
SERIAL DATA COMMUNICATION
24
26
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