SsangYong Rexton. Service manual — part 434
M161 ENGINE CONTROLS 1F2-57
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.
Temperature (°C)
20
80
100
Specified Value (
Ω
Ω
Ω
Ω
Ω
)
2,500
322
185
Notice: Replace wiring and coolant temperature sensor if out of specified value.
SSANGYONG Y200
1F2-58 M161 ENGINE CONTROLS
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 theThrottle 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 APP 1 or APP 2 sensor is defected condition, the engineis 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 adefault 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 servomotor 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 will opening (On/Off) time of injector. The engine rpm will be maintaining 900 rpm (at idle) to 1,800
according to the engine load.
ACCELERATOR PEDAL MODULE
YAD1F480
1 Accelerator Pedal
2 Accelerator Pedal Sensor
3 Bolts
4 6-Pin Connector
5 Kick-down Switch
6 Nut
M161 ENGINE CONTROLS 1F2-59
SSANGYONG Y200
YAD1F490
Circuit Description
The ECM supplies a 5 or 2.5 volt reference signal and a ground to the APP sensor 1 or 2. The ECM calculates on
these signal lines. The APP sensor output changes as the accelerator pedal is moved. The output of the APP 1
and APP 2 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).
Failure
Code
Description
Trouble Area
Maintenance Hint
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
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
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
bad contact
•
Inspection the APP sensor
•
Inspection the ECM
122
160
161
162
163
164
167
SSANGYONG Y200
1F2-60 M161 ENGINE CONTROLS
Acceleration Pedal Position Sensor 1 Inspection
1. Turn the ignition switch to “ON” position.
2. Measure the signal voltage between the ECM pin No. 47 and No. 31 while operating the accelerator pedal as
following conditions.
•
Not depress the pedal (closed throttle position)
•
Fully depress the pedal (full throttle with kick down)
Condition of Throttle
Valve
Closed Throttle Valve
Fully Depressed Throttle
Valve
Specified Value (V)
0.3 ~ 0.7
4.3 ~ 4.8
Notice: If measured value is not within the specified value, check the pedal valve sensor and the supply
voltage to APP 1 sensor.
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)
Condition of Throttle
Valve
Closed Throttle Valve
Fully Depressed Throttle
Valve
Specified Value (V)
0.1 ~ 0.4
2.1 ~ 2.5
Notice: If measured value is not within the specified value, check the pedal valve sensor and the supply
voltage to APP sensor 2.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст