SsangYong Rexton. Service manual - part 414

 

  Index      SsangYong     SsangYong Rexton - service and repair manual

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  412  413  414  415   ..

 

 

SsangYong Rexton. Service 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

 

 

 

 

 

 

 

Content   ..  412  413  414  415   ..