coolant temperature SSANGYONG MUSSO 2003 Workshop Manual

FATC-HAVC 7D-9
Diagnosis Item and Fault Code Self-diagnosis Display
1. Data will be displayed at the set temperature display as 2-digit number during self-diagnosis function and other settemperature displays will be OFF.
2. Display of self-diagnosis fault code will be blinking fault code number in the intervals of 0.5 sec.
3. Following fault code number will be displayed at the set temperature display during self-diagnosis function.
4. If no defective, normal display number (00) will blink. Display during continuous action
A. Normal or 1 fault (00 or 11) 15: coolant Sensor Open
16: coolant Sensor Short
17: temperature Actuator Open/Short
18: temperature Actuator Drive Fault
00: normal
11: incar Sensor Open
12: incar Sensor Short
13: ambient Sensor Open
14: ambient Sensor Short
B. Multiple faults (11,13,15.........) Display during step action
A. Normal or 1 fault : the same as continuous action
B. Multiple faults

0.1 sec. 0.1 sec.
0.5 sec.
ON
0.5 sec.OFF
ON
OFF
Display
Buzzer
0.5 sec.Fault 13
0.5 sec.OFF
Fault 15
OFF
Display
Buzzer
Fault 13 Fault 17
Display Buzzer AUTO switch pressedFault
17 Fault 17
Airconditioner switchpressedFault11 Fault 11


0.1 sec. 0.1 sec.

7D-12 FATC-HAVC Pin Number and Connection Circuit
Pin No.1 Connection circuit
2 3456789
10 11
1213141516
Rheostat Tail lamp
Battery (+)
Power TR (B) Power TR (C)
Temperature actuator (CCW) IG2
Ground
Airconditioner switch ground HI speed relay
Photo sensor (+)
Photo sensor (-)
Temperature actuator F/B
Temperature actuator (CW) IG2
Ground
Connector A
Pin No.
1 Connection circuit
2 345 6 789
101112131415
Incar sensor (+)
Ambient sensor (+) Coolant sensor (+)
Sensor voltage 5V Sensor ground
Intake (ambient) Intake (incar)
- --
VENT
B/L
FLR MIX
DEF
--- - -
Connector B
17 18
19
20
16

FATC-HAVC 7D-17
7b7a
Water sensor connector
3

0.5RB
Airconditioner control unit connector
V
5

0.5BL
Water Sensor
Water sensor is a thermistor that detects engine coolant temperature to operate the blower speed to LO when water temperature is less than 50.
1. Check that there are water sensor fault code (15,16) by
using self-diagnosis function.
3. Check that measured resistance value among water sensor terminals is as shown in the right side graph. Notice Measure resistance value by soaking the sensor in the ice water and check changes in resistance values after soaking
it in the very hot water.
4. If resistance value is out of specification, replace the water sensor.
5. Install the sensor and turn the ignition switch to ON position and check that voltage between No. 7a terminal of the water
sensor and body (-) is 5V.
6. Check current between the No. 7a and 7b connector terminals of the water sensor and the No. 3 and 5 connector terminals of the airconditioner control unit and repair the wire if defective.
2. Disconnect water sensor 2-pin connector that installed on
the heater unit of inner instrument panel and remove the
water sensor.

INSTRUMENTATION/DRIVER INFORMATION 9E-3
COMBINATION METER
COMPONENT LOCATOR
1. Speedometer
2. Odometer
3. Trip odometer
4. Tachometer
5. Coolant temperature gauge
6. Fuel gauge
7. Low fuel level warning light
8. Turn signal indicator (left)
9. Turn signal indicator (right)
10. Outside rearview mirror & tailgate heating switch
11. Reset button
12. Auto shift indicator*
13. Door open warning light
14. TCS indicator (equipped with ABD)*
21. ABS warning light* 22. EBD warning light*
23. ECS / SPORT warning light*
24. 4 - wheel warning light*
25. 4 - wheel high indicator
26. 4 - wheel low indicator
27. WINTER indicator
28. POWER indicator
29. High beam indicator
15. Alternator warning light
16. Engine oil pressure warning light
17. Brake system warning light
18. Glow indicator light (For Diesel engine)
19. Airbag warning light*
20. Seat belt reminder

MUSSO-SPORTS 1A-3
SUPPLEMENT
HUBER EGR
SYSTEM DESCRIPTION The following chart shows the relationship between the input and the output in Huber EGR control unit. Compared to traditional system that only operates theEGR valve with RPM sensor and Micro switch, the HuberEGR control unit bring big differences that of traditionalsystem on the functions.
Input Signal
RPM sensor (CPS)
EGR valve lift sensor
Throttle position sensor (TPS) - M/T
Shift lever position
Throttle position sensor (TPS)
Vehicle speed sensor(VSS) Basic input signal for EGR operation Engine cold or hot signal
Position signal of EGR valve that is triggered by vacuum modulator 1 Transfer the engine load signal to the control unit directly (manual transmission)
TCU (A/T)
EGR
Control
Unit
Coolant temperature sensor (CTS)
Solenoid valve (Control forvacuum modulator 2)
If the control unit determines it is in no-load sharp accel- eration mode after analyzing the input signals, this conver- sion type switch reduces the fuel consumption by cutting off the intake air pressure from
fuel injection ALDA and gen- erating the vacuum pressure. In no-load sharp acceleration
mode, Duty Control ( continu- ous precise control) is acti- vated according to the varia- tions of the input signals when the solenoid valve generates the vacuum pressure in ALDA.
Vacuum modulator 2
The opening value of the modulator is precisely con- trolled by input signals and programmed MAP, and the opening value of EGR valve is also changed by the varia- tions of vacuum pressure to EGR valve. The changed opening value is transferred to the control unit as input signal.
Vacuum modulator 1
TCU in automatic transmission equipped vehicle transfers the information such as driving conditions and speeds into the EGR control unit. EGR control unit uses the shift lever position and vehicle speed as important information for operating the solenoid valve during no-load sharp acceleration mode. In manual transmission, the signal of vehicle speed is transferred into the EGR control unit directly.
Clutch switch
In manual transmission, the clutch switch is the one of core elements to determine driving condition. Output Signal
EGR Control Unit

1A-6 MUSSO-SPORTS
SUPPLEMENT
Coolant Temperature Sensor (CTS)
1. Location: on cylinder block
2. Coolant temperature MAP (4 Stages) T0: 10 ~ 24 °C
T1: 25 ~ 40 °C
T2: 41 ~ 61 °C
T3: above 61 °C
3. If the EGR system is normally defective while engine is cold (or during warming up), it may be caused by incorrect input signal of the coolant temperaturesensor.
4. Resistance between pin 1 and pin 4 of the connector 20 °C: 2250 ± 159.0
50 °C: 836 ± 41.5
80 °C: 321 ± 15.0
120 °C: 113 ± 7.2
KAA5A040 KAA5A060
KAA5A060Solenoid Valve
1. This valve is used in no-load sharp acceleration mode.
2. Solenoid valve (Normal Open type)


 Normal: Solenoid valve opens, then intake
manifold pressure will operate ALDA.


 No-load sharp acceleration mode: Solenoid valve
closes, then vacuum pressure operate ALDA.
3. Operating voltage: approx. 12 V
4. Resistance: approx. 22.4 ± 1.4
5. Check the connections in each passage when supplying or cutting off the operating voltage.
The valve passage to ALDA will be changed when the battery voltage is supplied through EGR control unit.
Changed to ALDA (1 to 3) or vacuum from intake manifold
Changed to ALDA (2 to 3) from modulator 2 (Refer to exhaust gas control mode with no-load sharp acceleration)
TPS sensorSolenoid valve
Intake manifold
ALDAEGR control unit
3
12
Vacuum modulator 2
2
1
3
300
OHM
+-

MUSSO-SPORTS 1A-13
SUPPLEMENT
KAA5A020
KAA5A020
KAA5A020VACUUM MODULATOR 1, 2 Removal and Installation Procedure
1. Disconnect vacuum hose and connector from vacuum
module.
2. After releasing fixing bolt from bracket of intake manifold, and then remove vacuum modulator.
3. Installation should follow the removal procedures in the reverse order.
KAA5A020 EGR VALVE AND LIFT SENSOR Removal and Installation Procedure
1. Disconnect vacuum hose and connector from the
EGR valve.
2. After releasing the clamping bolt/nut of EGR Valve pipe and then remove the clamp.
3. After releasing fixing bolt of EGR Valve of Intake Manifold, remove the EGR Valve assembly.
4. Installation should follow the removal procedure in the reverse order.
COOLANT TEMPERATURE SENSOR Removal and Installation Procedure
1. Disconnect the coolant temperature sensor from the coolant temperature sensor.
2. After releasing the coolant temperature sensor from cylinder block and then remove the coolant tempera- ture sensor.
3. Installation should follow the removal procedure in the reverse order.
SOLENOID VALVE Removal and Installation Procedure
1. Disconnect vacuum hose(3ea) and connector from the solenoid valve.
2. Remove the solenoid valve from the fixing bracket of injection pump.
3. Installation should follow the removal procedure in the reverse order.