1997 SSANGYONG KORANDO sensor

AUTOMATIC TRANSMISSION 5A-5
SSANGYONG MY2002
Engine Speed
The engine speed signal is derived from the Control-
ler Area Network (CAN) via Engine Control Module
(ECM).
Vehicle Speed
The vehicle speed sensor, which is located in the
transfer case, sends the output shaft speed signal
to the Engine Control Module (ECM). The information
is then transferred to the TCM via the CAN.
Transmission Fluid Temperature
The transmission fluid temperature sensor is a
thermistor located in the solenoid wiring loom within
the valve body of the transmission. This sensor is
a typical Negative Temperature Coefficient (NTC)
resistor with low temperatures producing a high
resistance and high temperatures producing a low
resistance.
If the transmission fluid temperature exceeds 135
°C (275 °F), the TCM will impose converter lock-up
at lower vehicle speeds and in some vehicles
flashes the mode indicator light. This results in
maximum oil flow through the external oil cooler and
eliminates slippage in the torque converter. Both
these actions combine to reduce the oil temperature
in the transmission.
Minimum Temperature
(°C)Resistance (Ohms)
-20
0
20
100
135 (Overheat
Mode Threshold)13,638
5,177
2,278
117
75
Maximum
17,287
6,616
2, 723
196
85
Pin No. Wire ColorConnects to
1 Red Solenoid 1
2 BlueSolenoid 2
3 YellowSolenoid 3
4 OrangeSolenoid 4
5 GreenSolenoid 5
6 VioletSolenoid 6
7 BrownSolenoid 7
8 GreenSolenoid 5
9 White Temperature Sensor
10 Red Temperature Sensor
Pin No. Codes and colors in Solenoid Loom
KAA5A040KAA5A050
Gear Position Sensor
The gear position sensor is incorporated in the inhibitor
switch mounted on the side of the transmission case.
Inhibit starting of the vehicle when the shift lever is
in a position other than Park or Neutral
Illuminate the reverse lamps when Reverse is se-
lected
Indicate to the TCM which lever position has been
selected by way of a varying resistance. The gear position sensor is a multi-function switch pro-
viding three functions;
KAA5A060

5A-8 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
Solenoid Valve Symbols
(ON/OFF Solenoids)
The solenoid symbol shown adjacent to each solenoid
on the hydraulic system schematics indicates the state
of the oil flow through the solenoid valve with the power
ON or OFF.
Normally Open (NO) Solenoid
POWER ON: Line 500 port is closed. The output port
is open to exhaust at the solenoid valve.
POWER OFF: The exhaust port is closed. The output
port is open to line 500.
Variable Pressure Solenoid Multiplexing System
Friction element shifting pressures are controlled by
the Variable Pressure Solenoid (VPS).
Line pressure is completely independent of shift pres-
sure and is a function of throttle position, gear state
and engine speed.
S5 is a proportional or variable pressure solenoid that
provides the signal pressure to the clutch and band
regulator valves thereby controlling shift pressures.
VPS pressure is multiplexed to the clutch regulator
valve, the band regulator valve and the converter clutch
regulator valve during automatic gearshifts.
A variable pressure solenoid produces a hydraulic
pressure inversely proportional to the current applied.
During a gearshift the TCM applies a progressively
increasing or decreasing (ramped) current to the
solenoid. Current applied will vary between a minimum
oaf 200 mA and a maximum of 1000 mA. Increasing
current decreases output (S5) pressure. Decreasing
current increases output (S5) pressure.
Line 500 pressure, (approximately 440 to 560 kPa), is
the reference pressure for the VPS, and the VPS output
pressure is always below line 500 pressure.
When the VPS is at standby, that is no gearshift is
taking place, the VPS current is set to 200 mA giving
maximum output pressure.
Under steady state conditions the band and clutch
regulator valve solenoids are switched OFF.This applies full Line 500 pressure to the plunger and
because Line 500 pressure is always greater than S5
pressure it squeezes the S5 oil out between the
regulator valve and the plunger. The friction elements
are then fed oil pressure equal to Line 500 multiplied
by the amplification ratio.
When a shift is initiated the required ON/OFF solenoid
is switched ON cutting the supply of Line 500 to the
plunger.
At the same time the VPS pressure is reduced to the
ramp start value and assumes control of the regulator
valve by pushing the plunger away from the valve.
The VPS then carries out the required pressure ramp
and the timed shift is completed by switching OFF the
ON/ OFF solenoid and returning the VPS to the standby
pressure.
This system enables either the band or clutch or both
to be electrically controlled for each gearshift.
Mode Indicator Light
Depending on the application, the mode indicator light
may be used to indicate the mode that has been se-
lected or if an overheat condition exists. The mode
indicator light is usually located on the instrument
cluster.
Communication Systems
CAN
The Controller Area Network (CAN) connects various
control modules by using a twisted pair of wires, to
share common information. This results in a reduction
of sensors and wiring. TCM obtains the actual engine
speed and throttle position, vehicle speed and
accelerator position etc. from ECM via CAN without
any additional sensors.
K-Line
The K-line is typically used for obtaining diagnostic
information from the TCM. A scan tool with a special
interface is connected to the TCM via Data Link
Connector (DLC) and all current faults, stored faults,
runtime parameters are then available. The stored
trouble codes can also be cleared by scan tool.
The K-line can be used for vehicle coding at the
manufacturer’s plant or in the workshop. This allows
for one TCM design to be used over different vehicle
mod-els.
The particular code is sent to the microprocessor via
the K-line and this results in the software selecting the
correct shift and VPS ramp parameters.
Data Link Connector (DLC)
The Data Link Connector (DLC) is a multiple cavity
connector. The DLC provides the means to access the
serial data from the TCM.
The DLC allows the technician to use a scan tool to
monitor the various systems and display the Diagnostic
Trouble Codes (DTCs).
KAA5A070

AUTOMATIC TRANSMISSION 5A-45
SSANGYONG MY2002
Condition
Harsh 1-2 shiftPossible Causes
Faulty inhibitor switch.
Faulty throttle position sensor.
Incorrect front band adjustment.
Damaged front servo piston ‘O’
rings.
Faulty or damaged variable
pressure solenoid (S5).
Faulty S1 or S4 solenoid.
Faulty Band Apply Regulator
(BAR) valve.
Misassembled front servo return
spring.
Jammed Converter Clutch
Control Valve (CCCV).
Faulty solenoid 7.Action
Check the resistance. Replace
the inhibitor switch as necessary.
Inspect and replace the sensor
as necessary.
Inspect and adjust the band as
necessary.
Inspect and replace the ‘O’
rings as necessary.
Inspect, repair or replace S5 as
necessary.
Inspect, repair or replace S1 or
S4 as necessary.
Inspect, repair or replace the
BAR as necessary.
Inspect and repair as necessary.
Inspect and clean CCCV.
Inspect, repair or replace as
necessary.
Stalls when Drive Or Reverse
Selected Shudder on Rolldown

5A-48 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
TROUBLE CODE DIAGNOSIS - GASOLINE VEHICLE
TCM DIAGNOSTIC SYSTEM
OVERVIEW
Notice: To prevent Transmission Control Module (TCM)
damage. The ignition key must be OFF when
disconnection or reconnection the power to the TCM
(for example bttery cable, TCM pigtail connector, TCM
fuse, jumper cables, etc.).
When the TCM detects a system fault, a Diagnostic
Trouble Code (DTC) is set in the TCM. This code is
present while the fault conditions are met and is stored
as a ‘History DTC’ until cleared. Condition for setting
and clearing each TCM DTC are provided in the relevant
sections.
In the case where the vehicle type is certified for Eure
On-Board Diagnostic (EOBD) compliance, the Engine
Control Module (ECM) provides the communication linkto the EOBD scan tool to pass on any EOBD relevant
codes from the TCM. The table below contains a list of
all supported DTCs and the classification of each for
EOBD purposes. Where a type B DTC has been set in
an EOBD vehicle, the response to the fault may include
action by the ECM, including the illumination of the
Malfunction lndicator Lamp (MIL). Refer to Section 1F,
Engine Control, for details on EOBD system function,
checks and fault clearing.
CLEARING TROUBLE CODES
TCM DTCs should be cleared after repairs have been
completed. Some diagnostic tables will tell you to clear
the codes before using the chart, which will help to
find the cause of the problem more quickly. Always
note the DTCs present before clearing - this information
may be helpful in the diagnostic process.”
DIAGNOSTIC TROUBLE CODES
DTC
P0706
P0707
P0708
P0710
P0790
P1703
P1704
P1708
P1709
P1712
P1713
P1714
P1715
P1717
P1718
P1719
P1720
P1721
P1722
P1733
P1734
P1735
P1736
P1737Type
B
B
B
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D Description
Transmission Range Sensor Circuit Range/Performance
Transmission Range Sensor Circuit Low input
Transmission Range Sensor Circuit High input
Transmission Fluid Temperature Sensor Circuit Malfunction
Normal/Performance Switch Circuit Malfunction
Engine Speed Signal Error
Shaft Speed Signal Error
TCM Supply Voltage Low
TCM Supply Voltage High
Kickdown Switch Circuit Malfunction
Pedal Signal Error
EEPROM Vehicle Code Error
VPS Offset Error
RAM Error
ROM Error
CAN Bus Error
EEPROM Error
Throttle Signal Error
Vehicle Type Determination Error
Solenoid 1 Circuit Open
Solenoid 2 Circuit Open
Solenoid 3 Circuit Open
Solenoid 4 Circuit Open
Solenoid 5 Circuit Open

5A-50 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
Transmission Range Sensor Circuit Low Input
Transmission Range Sensor Circuit High Input
Transmission Fluid Temperature Sensor Circuit Malfunction
Normal/Performance Switch Circuit Malfunction
Engine Speed Signal Error
Shaft Speed Signal Error
TCM Supply Voltage Low
TCM Supply Voltage High
Air Conditioning Switch Circuit Malfunction
Kickdown Switch Circuit Malfunction
EEPROM Vehicle Code Error
VPS Offset Error
Throttle Not Learnt Error
RAM Error
ROM Error
EEPROM Error
Throttle Signal Error
Vehicle Type Determination Error
Solenoid 1 Circuit Open
Solenoid 2 Circuit Open
Solenoid 3 Circuit Open
Solenoid 4 Circuit Open
Solenoid 5 Circuit Open
Solenoid 6 Circuit Open
Solenoid 7 Circuit Open
Solenoid 1 Circuit Short
Solenoid 2 Circuit Short
Solenoid 3 Circuit Short
Solenoid 4 Circuit Short
TROUBLE CODE DIAGNOSIS - DIESEL VEHICLE
TCM DIAGNOSTIC SYSTEM
OVERVIEW
Notice: To prevent Transmission Control Module (TCM)
damage. The ignition key must be OFF when
disconnection or reconnection the power to the TCM
(for example bttery cable, TCM pigtail connector, TCM
fuse, jumper cables, etc.).
When the TCM detects a system fault, a Diagnostic
Trouble Code (DTC) is set in the TCM. This code is
present while the fault conditions are met and is storedas a ‘History DTC’ until cleared. Condition for setting
and clearing each TCM DTC are provided in the relevant
sections.CLEARING TROUBLE CODES
TCM DTCs should be cleared after repairs have been
completed. Some diagnostic tables will tell you to clear
the codes before using the chart, which will help to
find the cause of the problem more quickly. Always
note the DTCs present before clearing - this information
may be helpful in the diagnostic process.
DIAGNOSTIC TROUBLE CODES
DTC
P0707
P0708
P0710
P0790
P1703
P1704
P1708
P1709
P1710
P1712
P1714
P1715
P1716
P1717
P1718
P1720
P1721
P1722
P1733
P1734
P1735
P1736
P1737
P1738
P1739
P1741
P1742
P1743
P1744Description

5A-54 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
Circuit Description
The Transmission Range (TR) sensor is incorporated
in the inhibitor switch mounted on the side of the
transmission case. The TR sensor Indicates to the TCM
which gear position has been selected by way of a
varying resistance.
The TR sensor signal has discrete values indicating
the positions selected by the gear shift control lever
(PRND321). The Transmission Control Module (TCM)
receives that signal with a voltage varying from 0 V to
5 V. DTC P0706 sets when the TR sensor signal is not
feasi ble.
Conditions for Setting the DTC
•The engine temperature is greater than 60 °C (140 °F).
The engine speed is greater than 2000 RPM and
less than 4000 RPM.
Engine load is greater than 60 %.
DTCs P0707, P0708, P1703 and P1719 are not set.
Transmission temperature is greater than 0 °C (32 °F)
or if P0710 is present the engine coolant
temperature is greater than 60 °C (140 °F).
The TR sensor indicates that the transmission is in
a neutral state, however the engine output torque
indicates that a drive gear load is present. This
condition must be continuously present for 5
seconds.
DIAGNOSTIC TROUBLE CODE (DTC) P0706
TRANSMISSION RANGE SENSOR CIRCUIT RANGE/PERFORMANCE
Action Taken When the DTC Sets
The Malfunction Indicator Lamp (MIL) will illuminate
on the second consecutive driving cycle with the
DTC present.
The EOBD system will record operating conditions
at the time the diagnostic fails. This information will
be stored in the Failure Records buffer.
TR signal is assumed to be in the Drive position.
The transmission is limited to 2nd and R gears only.
Namely 1st, 3rd and 4th gears are inhibited.
Torque Converter Clutch (TCC) is disabled.
Conditions for Clearing the DTC
The DTC will clear when the malfunction has not oc-
curred for 30 seconds and TR is in P, R, N or D.
A history DTC will clear after 40 TCM power-up
cycles with a warm transmission (>50 °C) and
without a fault.
History DTCs can be cleared by using a scan tool.
Diagnostic Aids
Inspect the wiring for poor electrical connections
at the TCM and at the TR sensor connector. Look
for possible bent, backed out, deformed or damaged
ter-minals. Check for weak terminal tension as well.
Also, check for chafed wires that could short to bare
metal or other wiring. Inspect for broken wires inside
the in-sulation.
KAA5A5LA

AUTOMATIC TRANSMISSION 5A-55
SSANGYONG MY2002
Perform a Transmission Control Module (TCM)
Diagnostic System Check.
Is the check performed?
1. Install the scan tool.
2. Turn the ignition ON, with the engine OFF.
3. Record and then clear DTCs.
4. Operate the vehicle within the conditions for
setting this DTC as specified in the text.
Does the scan tool display P0706?
1. Select Gear Lever Position on scan tool Data List.
2. Move the gear shift control lever through all of the
gear ranges (P, R, N, D, 3, 2, 1).
Does the scan tool display the correct gear lever
positions?
1. Inspect the TR sensor for damage to its rotating
part or its mountings.
2. Inspect the shaft driving the TR sensor for damage.
Is a repair necessary?
Replace the TR sensor or driving shaft as appropriate.
Is the acting complete?
Check for damage to the z-link within the transmission
and repair as necessary.
Is a repair necessary?
1. Using the scan tool, clear the DTCs.
2. Road test the vehicle within the conditions for
setting this DTC as specified in the text.
Does the scan tool indicate that this diagnostic has
run and passed?
Check if any DTCs are set.
Are there any DTCs displayed or previously recorded
at Step 2 that have not been diagnosed?
DTC P0706 Transmission Range Sensor Circuit Range/Performance
1
StepAction Value(s) Yes No
2
3
4
5
6
- Go to Step 2Go to “TCM
Diagnostic
System Check”
- Go to Step 6 Go to Step 4
- Go to Step 5 Go to Step 6
- Go to Step 7 -
8 7
- Go to Step 8 Go to Step 2
- Go to Step 7 -
- Go to Step 3 Go to
“Diagnostic
Aids”
-Go to
applicable
DTC tableSystem OK,
Check
Complete

5A-56 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
Circuit Description
The Transmission Range (TR) sensor is incorporated
in the inhibitor switch mounted on the side of the
transmis sion case. The TR sensor Indicates to the
TCM which gear position has been selected by way of
a varying resistance.
The TR sensor signal has discrete values indicating
the positions selected by the gear shift control lever
(PRND321). The Transmission Control Module (TCM)
receives that signal with a voltage varying from 0 V to
5 V. DTC P0707 sets when the TR sensor signal is
faulty, causing the gear lever position signal to be less
than 0.87 V.
Conditions for Setting the DTC
TR sensor signal is less than 0.87 V.
The above condition must be continuously present
for 100 milliseconds.
Action Taken When the DTC Sets
The Malfunction Indicator Lamp (MIL) will illuminate
on the second consecutive driving cycle with the
DTC present.
The EOBD system will record operating conditions
at the time the diagnostic fails. This information will
be stored in the Failure Records buffer.
Transmission range is assumed to be in the Drive
position.
The transmission is limited to 2nd and R gears only.
Namely 1st, 3rd and 4th gears are inhibited.
Torque Converter Clutch (TCC) is disabled.
DIAGNOSTIC TROUBLE CODE (DTC) P0707
TRANSMISSION RANGE SENSOR CIRCUIT LOW INPUT
Conditions for Clearing the DTC
The DTC will clear when the malfunction has not
occurred for 3 seconds.
A history DTC will clear after 40 TCM power-up
cycles with a warm transmission (>50 °C) and
without a fault.
History DTCs can be cleared by using a scan tool.
Diagnostic Aids
The voltage measured by the TCM across the TR
sensor input terminals has been below on
acceptable level for a significant length of time.
This would typically be caused by a short to ground
in the wiring to, or within, the inhibitor switch which
has caused the signal at the TCM to read about 0
V.
Inspect the wiring for poor electrical connections
at the TCM and at the TR sensor connector. Look
for possible bent, deformed or damaged terminals.
Also, check for chafed wires that could short to bare
metal or other wiring.
In searching for a possible intermittent short or open
condition, move or massage the wiring harness
while observing the test equipment for a change.
Test Description
The number(s) below refer to the step number(s) on
the Diagnostic Table.
3. This step simulates a DTC P0708 condition. If the
scan tool displays the specified value, the TR
sensor signal circuit and the TCM are OK.
KAA5A5LA