SsangYong Rexton. Service manual — part 410
M162 ENGINE CONTROLS 1F1-57
SSANGYONG Y200
3. Turn the ignition switch to “OFF” position.
4. Disconnect the ECT sensor connector.
5. Turn the ignition switch to “ON” position.
6. Measure the resistance between the ECT sensor terminal pin No. 1 and No. 4.
Notice: Replace wiring and coolant temperature sensor if out of specified value.
Temperature (°C)
20
80
100
Specified Value (
Ω
Ω
Ω
Ω
Ω
)
2,500
322
185
SSANGYONG Y200
1F1-58 M162 ENGINE CONTROLS
ACCELERATOR PEDAL MODULE
YAD1F480
The Acceleration Pedal Position (APP) sensor is mounted on the accelerator pedal assembly. The sensor is
actually two individual APP sensors and one housing. This sensor works with the Throttle Position (TP) sensor to
provide input to the Engine Control Module (ECM) regarding driver requested accelerator pedal and throttle angle
at the throttle body.
When the APP sensor is defected:
When the APP1 or APP 2 sensor is defected condition, the engine is still running at idle condition but, the
accelerator pedal reaction is not response correctly and also, the engine rpm will be reacted to 4,000 rpm slowly.
If the APP 1 sensor is out of order, the APP 2 sensor will be conducted with signal as a default signal but, the
throttle valve opening is limited 60% and delayed opening speed.
When the TP sensor or servo motor is defected:
When the TP 1, 2 sensor or servo motor is defected condition, the throttle valve will be closed to the spring
capsule by spring force, at this condition, the throttle valve will open 10° ~ 20° and engine rpm will be controlled
by ECM with opening (On/Off) time of injector. The engine rpm will be maintaining 900 rpm (at idle) to 1,800
according to the engine load.
1 Accelerator Pedal
2 Accelerator Pedal Sensor
3 Bolts
4 6-Pin Connector
5 Kick-down Switch
6 Nut
M162 ENGINE CONTROLS 1F1-59
SSANGYONG Y200
Acceleration pedal
position sensor signal
failure
Acceleration pedal
position 1 sensor low
voltage
Acceleration pedal
position sensor 1 high
voltage
Acceleration pedal
position sensor 2 low
voltage
Acceleration pedal
position sensor 2 high
voltage
Accelerator pedal
position sensor 1 not
plausible with
accelerator pedal
position sensor 2
Both setpoint
accelerator pedal
position sensor
defective
YAD1F490
Failure
Code
Description
Trouble Area
Maintenance Hint
When malfunction of APP
sensor
APP 1 sensor short circuit to
ground or open
APP 1 sensor short circuit to
power
APP 2 sensor short circuit to
ground or open
APP 2 sensor short circuit to
power bad contact
When difference between APP
1 sensor and APP 2 sensor
When defective of both APP
sensor
•
Monitoring the actual values through
scan tool
•
Inspection the ECM pin 31, 47, 32, 48,
59, 51 about short circuit or open with
•
Inspection the APP sensor
•
Inspection the ECM
122
160
161
162
163
164
167
SSANGYONG Y200
1F1-60 M162 ENGINE CONTROLS
Circuit Description
The ECM supplies a 5 or 2.5 volt reference signal and a ground to the APP sensor 1or 2. The ECM calculates on
these signal lines. The APP sensor output changes as the accelerator pedal is moved. The output of the APP
1and APP2 sensor are low, about 0.4 ~ 0.7 volts and 0.2 ~ 0.35 volts respectively at the closed throttle position.
As pushing the accelerator pedal, the output increases so that the output voltages will be about 4.3 ~ 4.8 volts
and 2.1 ~ 2.4 volts individually when accelerating fully with the kick down, at Wide Open Throttle (WOT).
Acceleration Pedal Position Sensor 1 Inspection
1. Turn the ignition switch to “ON” position.
2. Measure the signal voltage between the ECM pin No. 47andNo. 31while operating the accelerator pedal as
following conditions.
•
Not depress the pedal (closed throttle position)
•
Fully depress the pedal (full throttle with kick down)
Acceleration Pedal Position Sensor 2 Inspection
1. Turn the ignition switch to “ON” position.
2. Measure the signal voltage between the ECM pin No. 48 and No. 50 while operating the accelerator pedal as
following conditions.
•
Not depress the pedal (closed throttle position)
•
Fully depress the pedal (full throttle with kick down)
Notice: If measured value is not within the specified value, check the pedal valve sensor and the supply
voltage to APP 1 sensor.
Notice: If measured value is not within the specified value, check the pedal valve sensor and the supply
voltage to APP sensor 2.
Condition of Throttle Valve
Closed Throttle Valve
Fully Depressed Throttle Valve
Specified Value (V)
0.3 ~ 0.7
4.3 ~ 4.8
Condition of Throttle Valve
Closed Throttle Valve
Fully Depressed Throttle Valve
Specified Value (V)
0.1 ~ 0.4
2.1 ~ 2.5
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