2
-
22
42hW-201601
CHAPTER 2 ENGINE 3015R(h)/3515R(h)/4015R(h)/F36R(h)/F42R(h) TRACTOR
DIAGNOSTICS
The following sensor diagnostics are when the
sensor is properly connected with a 5kohm pull-up
load to Vcc.
FAULT PIN OUTPUT
Open 1 > 96%Vcc
Open 2 > 96%Vcc
Open 3 > 96%Vcc
Short 1-2 < 4%Vcc
Short 1-3 > 96%Vcc
Short 2-3 < 4%Vcc
PART CHECK
K25W238A
1) SCANNER
1] (DIAGNOSTIC) - 4] Engine - 1] DPF Logger -
1] Self check - 8] Differential pressure voltage -
9] Differential pressure
2) Check the voltage 0.5± 0.2V under atmosphere
(Voltage of atmospheric pressure = 5V*10%)
3) How to check:
1. Turn off ignition switch.
2. Separate pressure sensor from connector.
3. Separate hose from pressure sensor.
4. Loosen bolts and separate pressure sensor
from car
4) DPS sensor installation torque: 1.0 ~ 1.2 kgf•m
4.4.2 EGTS SENSOR (EXHAUST GAS
TEMPERATURE SENSOR)
INTRODUCTION
Check the temperature of the exhaust gas from
DPF and data logger records the temperature of the
exhaust gas in Logger.
CIRCUIT
K25W240A
RTD circuit to MCU
Voltages
- Power supply: Up = +5V
± 0.1%
- Output voltage: UO = See table
Resistances
- Pull up resistance: Rp = 1000
Ω ± 0.1%
-
Lead resistance: R1 =
005
Ω
(Ml-cable + Cu-leads)
- TS-200 0°C: RO = 200
- Total TS-200 resistance: Rs =
See table
•
•