1997 SSANGYONG KORANDO air condition

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-5
SSANGYONG MY2002
KAA8B060
AIRBAG WARNING LAMP
The instrument cluster contains an airbag warning indi-
cator bulb to verify the operation of the airbag indicator
and sensing and diagnostic module (SDM). The SDM
performs a start-up test when the ignition is turned ON
and turns the airbag indicator on for 4.5 seconds by
supplying an internal ground to the indicator lamp
circuit. After 4.5 seconds, the airbag indicator will turn
off if no more malfunctions have been detected.
If the SDM has detected malfunctions, which could
potentially affect the operation of the supplemental
restraint system (SRS) it turns on or blinks the airbag
warning indicator. The airbag indicator stays on for
the malfunction of internal system and blinks for
external circuit problem such as short to battery or
ground. The airbag indicator blinks four different modes
according to the fault.
Some malfunctions could result in non-deployment
when necessary or deployment under conditions which
would no normally result in deployment.
When the SDM is not properly attached to its connector
the airbag circuit is shorted to ground because there
is a shorting bar within the SDM electronic connector.
The shorting bar is disengaged when proper connection
is made, but if a poor connection exists the SDM
connector supplies a ground to the airbag indicator in
dependently of the SDM, and the airbag indicator turns
on.
CLOCK SPRING
Caution: Disassembling the clock spring can cause
injury or cause the clock spring to malfunction.
Caution: Over-rotating the clock spring without the
steering wheel in position could damage the clock
spring and result in an inoperative driver airbag.There is a coil assembly in the steering which is referred
to as a clock spring because of its internal resemblance
to the type of spring used in a mechanical clock. The
clock spring should never be disassembled, and there
is no timekeeping function. The clock spring contains
current- carrying coils. One of the current-carrying coils
maintains continuous contact within the driver deploy-
ment loop while the steering wheel is rotated. The clock
spring also contains coils that maintain continuous con-
tact for horn and remote audio control switch.
Turning the steering wheel in one direction tightens
the coil, and turning the steering wheel in the opposite
direction loosens the coil. Do not turn the clock spring
when the steering wheel is not attached.
A yellow two-way connector on the lower steering col-
umn is attached to the clock spring wiring.
WIRING HARNESS CONNECTORS
If the sensing and diagnostic module (SDM) electrical
connector is not attached properly, a built in shorting
bar will connect the wire from airbag warning lamp with
the SDM ground wire. This turns on the airbag indicator.
To prevent deployment during servicing, additional
shorting bars are located in following locations:
The clock spring electrical connector at the lower
steering column.
The passenger airbag module.
The driver airbag module.
The seat belt pretensioners.
The SDM connector.
The shorting bar is only a backup safety device. Always
disable the supplemental restraints system (SRS) be-
fore beginning any service procedure.
KAA8B070

SSANGYONG MY2002
8B-10 SUPPLEMENTAL RESTRAINTS SYSTEM
SRS DIAGNOSTIC SYSTEM CHECK
Notice: If the vehicle interior has been exposed to
extensive water intrusion such as water leaks, driving
through high water, flooding, or other caucuses, the
sensing and diagnostic module (SDM) and SDM
connector may be need to be replaced. With ignition
OFF, inspect the area around the SDM, including the
carpet. If any significant soaking or evidence of previous
soaking is detected, the water must be removed, water
damage repaired, and the SDM and SDM connector must
be replaced. Before attempting any of these repairs, the
supplemental restraint system (SRS) must be disabled.
Refer to “Disabling the SRS” and “Sensing and
Diagnostic Module (SDM)” in this section.
The SRS Diagnostic System Check must always be
the starting point for any SRS system diagnosis. The
SRS Diagnostic System Check reveals diagnostic
trouble codes (DTCs) through the use of scan tool.
The diagnostic procedures used in this section are
designed to find and repair SRS conditions. To get
the best results, it is important to use the diagnostic
charts and follow the sequence listed below.
1. Perform the SRS Diagnostic System Check, which
reveals diagnostic trouble codes (DTCs) through
the use of scan tool. It also checks for proper airbag
indicator operation.
2. Refer to the proper diagnostic chart as directed by
SRS Diagnostic System Check. Bypassing these
procedures may result in extended diagnostic time,
incorrect diagnosis, and incorrect parts
replacement.3. Repeat the SRS Diagnostic System Check after any
repair or diagnostic procedures have been
performed to ensure that the repair has beenmade
correctly and that no other malfunction exists.
Circuit Description
When the ignitions witch is first turned to ON, ignition
voltage is supplied from airbag fuse to the SDM at
input terminal 5. The SDM responds by turning on the
airbag indicator for 4.5 seconds and then turning it off
while the SDM performs tests on the SRS system.
Diagnostic Aids
The order in which DTCs are diagnosed is very
important. Failure to diagnose the DTCs in the order
specified may result in extended diagnostic time,
incorrect diagnosis, and incorrect parts replacement.
Test Description
The numbers below refer to steps on the diagnostic
table.
2. This test differentiates between an indicator that
will not come on and an indicator that stays on when
it should be off.
3. Refer to the first caution below
5. This test, along with step 6, differentiates internal
or external faults of SDM.
9. Refer to the cautions below.

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-11
SSANGYONG MY2002
SRS Diagnostic System Check
Caution: the sensing and diagnosis module (SDM)
can maintain sufficient voltage to deploy the airbags
and pretensioners for 0.15 seconds after the ignition
is OFF and the fuse has been removed. If the airbags
or pretensioners are not disconnected, do not begin
service until one minute has passed after
disconnecting power to the SDM. Otherwise, injury
could result.Caution: During service procedure, be very careful
when handling the SDM. Never strike or jar the SDM.
Never power the supplemental restraints system
(SRS) when the SDM is not rigidly attached to the
vehicle. Also SDM mounting nuts must be carefully
tightened to ensure proper operation of the SRS.
The SDM could be activated if it is powered when it
is not rigidly attached to the vehicle, resulting in
unexpected deployment and possible injury.
Yes
Go to Step 5
Go to “Airbag
Warning Lamp
Stays on with
Ignition Switch
ON”
Go to Step 9
Go to Step 1
Go to Step 8
Go to Step 7
Refer to the
DTC chart for
any DTC that
was set or
internal fault.
System OK
Go to Step 1No
Go to Step 2
Go to Step 3
Go to Step 4
-
Go to Step 6
System OK
-
Go to Step 9
- Value
-
-
-
-
-
-
-
-
-
Step
1
2
3
4
5
6
7
8
9Action
1. Turn the ignition switch to ON.
2. Observe the airbag indicator as the ignition is being
turned ON.
Does the indicator turn on for 4.5 seconds and go out?
Observe the airbag indicator after the ignition has been
turned ON.
Does the airbag indicator stay on?
1. Turn the ignition to LOCK and remove the key.
2. Disconnect the sensing and diagnostic module (SDM)
connector.
3. Check the airbag indicator bulb and circuit.
Are the bulb and bulb circuit in good condition?
1. Replace the bulb or repair the bulb circuit.
2. Connect SDM connector and ensure that all compo-
nents are properly mounted.
Is the repair complete?
Observe the airbag indicator after 4.5 seconds.
Does the indicator turn on again and stay?
Observe the airbag indicator after 4.5 seconds.
Does the indicator blink?
1. Turn the ignition to LOCK and remove the key.
2. Connect the scan tool to the data link connector (DLC).
Follow the directions given in the scan tool manual.
3. Turn the ignition to ON.
4. Request SRS DTC display with the scan tool.
Are any SRS DTCs displayed?
Check the bulb circuit for improper connections.
Is the repair complete?
1. Turn the ignition to LOCK and remove the key.
2. Disconnect the SDM connector.
3. Replace the SDM.
4. Reconnect SDM connector and ensure that all compo-
nents are properly mounted.
Is the repair complete?

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-15
SSANGYONG MY2002
Yes
System OK
Go to Step 8
System OK
Go to Step 9
System OK
System OKNo
-
Go to Step 7
-
Go to Step 10
-
- Value
-
-
-
-
-
-Step
5
6
7
8
9
10Action
Repair the power supply to the airbag fuse.
Is the repair complete?
Check the airbag fuse.
Is the fuse in good condition?
Replace the airbag fuse F31.
Is the repair complete?
1. Turn the ignition to LOCK and remove the key.
2. Disconnect the SDM connector.
3. Check for open circuit between terminal 5 of the SDM
and the airbag fuse F31.
Is there an open circuit?
Repair the open circuit between the SDM and airbag fuse
F31.
Is the repair complete?
Repair the short to ground circuit between the airbag
indicator lamp and terminal 1 of the SDM.
Is the repair complete?

SSANGYONG MY2002
8B-34 SUPPLEMENTAL RESTRAINTS SYSTEM
Circuit Description
When the ignition switch is turned to ON, the sensing
and diagnostic module (SDM) will perform tests to
diagnose critical malfunctions within SDM itself. Upon
passing these tests ignition and deployment loop
voltages are measured to ensure that they are within
their respective normal voltage ranges. The SDM then
proceeds with resistance measurement test. Driver low
terminal 14 is grounded through a current sink. The
current source is connected to driver high terminal 13
to allow a known amount of the current flow. By
monitoring the voltage difference between drive high
and driver low, the SDM calculates the combined
resistance of the driver inflator module, the clock
spring, the harness wiring, and connector terminal
contacts.
DTC 17 Will Set When
DTC 17 will set when the resistance of the driver airbag
deployment loop is above specified value (4.5 ± 0.5 Ω).
DIAGNOSTIC TROUBLE CODE (DTC) 17
DRIVER DEPLOYMENT LOOP RESISTANCE HIGH
The test is run once each ignition cycle during the
resistance measurement test when the ignition voltage
is above a specified value.
Action Taken
The SDM will turn on the airbag indicator (blink mode
1) and set DTC 17. And driver airbag deployment loop
shutdown.
DTC 17 Will Clear When
The ignition switch is turned OFF or the scan tool
CLEAR CODES command is received.
Diagnostic Aids
All intermittent condition is likely to be the caused by
a poor connection from the driver airbag to the clock
spring or SDM terminal 13 or 14. The test for this DTCis
run only while the airbag indicator is performing the
start-up test. When a scan tool CLEAR CODES
command is issued and the malfunction is still present,
the DTC will not reappear until next ignition cycle.
KAA8B100
DTC 17 - Driver Deployment Loop Resistance High
Caution: The sensing and diagnosis module (SDM)
can maintain sufficient voltage to deploy the airbags
and pretensioners for 0.15 seconds after the ignition
is OFF and the fuse has been removed. If the airbags
or pretensioners are not disconnected, do not begin
service until one minute has passed after
disconnecting power to the SDM. Otherwise, injury
could result.Caution: During service procedure, be very careful
when handling the SDM. Never strike or jar the SDM.
Never power the supplemental restraints system
(SRS) when the SDM is not rigidly attached to the
vehicle. Also SDM mounting nuts must be carefully
tightened to ensure proper operation of the SRS.
The SDM could be activated if it is powered when it
is not rigidly attached to the vehicle, resulting in
unexpected deployment and possible injury.

SSANGYONG MY2002
8B-38 SUPPLEMENTAL RESTRAINTS SYSTEM
Circuit Description
When the ignition switch is turned to ON, the sensing
and diagnostic module (SDM) will perform tests to
diagnose critical malfunctions within SDM itself. Upon
passing these tests ignition and deployment loop
voltages are measured to ensure that they are within
their respective normal voltage ranges. The SDM then
proceeds with resistance measurement test. Passenger
low terminal 11 is grounded through a current sink.
The current source is connected to driver high terminal
10 to allow a known amount of the current flow. By
monitoring the voltage difference between passenger
high and passenger low, the SDM calculates the
combined resistance of the passenger inflator module,
the harness wiring, and connector terminal contacts.
DTC 18 Will Set When
DTC 18 will set when the resistance of the passenger
airbag deployment loop is above specified value (4.5
± 0.5 Ω).
DIAGNOSTIC TROUBLE CODE (DTC) 18
PASSENGER DEPLOYMENT LOOP RESISTANCE HIGH
The test is run once each ignition cycle during the
resistance measurement test when the ignition voltage
is above a specified value.
Action Taken
The SDM will turn on the airbag indicator (blink mode
2) and set DTC 18. And passenger airbag deployment
loop shutdown.
DTC 18 Will Clear When
The ignition switch is turned OFF or the scan tool
CLEAR CODES command is received.
Diagnostic Aids
All intermittent condition is likely to be the caused by
a poor connection from the passenger airbag to the
SDM terminal 11 or 12. The test for this DTC is run
only while the airbag indicator is performing the start-
up test.When a scan tool CLEAR CODES command is
issued and the malfunction is still present, the DTC
will not reappear until next ignition cycle.
KAA8B100
DTC 18 - Passenger Deployment Loop Resistance High
Caution: The sensing and diagnosis module (SDM)
can maintain sufficient voltage to deploy the airbags
and pretensioners for 0.15 seconds after the ignition
is OFF and the fuse has been removed. If the airbags
or pretensioners are not disconnected, do not begin
service until one minute has passed after
disconnecting power to the SDM. Otherwise, injury
could result.Caution: During service procedure, be very careful
when handling the SDM. Never strike or jar the SDM.
Never power the supplemental restraints system
(SRS) when the SDM is not rigidly attached to the
vehicle. Also SDM mounting nuts must be carefully
tightened to ensure proper operation of the SRS.
The SDM could be activated if it is powered when it
is not rigidly attached to the vehicle, resulting in
unexpected deployment and possible injury.

SSANGYONG MY2002
8B-40 SUPPLEMENTAL RESTRAINTS SYSTEM
Circuit Description
When the ignition switch is turned to ON, the sensing
and diagnostic module (SDM) will perform tests to
diagnose critical malfunctions within SDM itself. Upon
passing these tests ignition and deployment loop
voltages are measured to ensure that they are within
their respective normal voltage ranges. The SDM then
proceeds with resistance measurement test. Driver seat
belt pretensioner low terminal 7 is grounded through a
current sink. The current source is connected to driver
seat belt pretensioner high terminal 6 to allow a known
amount of the current flow. By monitoring the voltage
difference between driver seat belt pretensioner high
and driver seat belt pretensioner low, the SDM
calculates the combined resistance of the driver seat
belt pretensioner inflator module, the harness wiring,
and connector terminal contacts.
DTC 19 Will Set When
DTC 19 will set when the resistance of driver seat belt
pretensioner deployment loop is above specified value
DIAGNOSTIC TROUBLE CODE (DTC) 19
DRIVER SEAT BELT PRETENSIONER DEPLOYMENT LOOP
RESISTANCE HIGH
(4.5 ± 0.5 Ω). The test is run once each ignition cycle
during the resistance measurement test when the
ignition voltage is above a specified value.
Action Taken
The SDM will turn on the airbag indicator (blink mode
4) and set DTC 19. And driver seat belt pretensioner
deployment loop shutdown.
DTC19 Will Clear When
The ignition switch is turned OFF or the scan tool
CLEAR CODES command is received.
Diagnostic Aids
All intermittent condition is likely to be the caused by
a poor connection from the driver seat belt pretensioner
to the SDM terminal 6 or 7. The test for this DTCis run
only while the airbag indicator is performing the start-
up test. When a scan tool CLEAR CODES command
is issued and the malfunction is still present, the DTC
will not reappear until next ignition cycle.
KAA8B120
DTC 19 - Driver Seat Belt Pretensioner Deployment Loop Resistance High
Caution: The sensing and diagnosis module (SDM)
can maintain sufficient voltage to deploy the airbags
and pretensioners for 0.15 seconds after the ignition
is OFF and the fuse has been removed. If the airbags
or pretensioners are not disconnected, do not begin
service until one minute has passed after
disconnecting power to the SDM. Otherwise, injury
could result.Caution: During service procedure, be very careful
when handling the SDM. Never strike or jar the SDM.
Never power the supplemental restraints system
(SRS) when the SDM is not rigidly attached to the
vehicle. Also SDM mounting nuts must be carefully
tightened to ensure proper operation of the SRS.
The SDM could be activated if it is powered when it
is not rigidly attached to the vehicle, resulting in
unexpected deployment and possible injury.

SSANGYONG MY2002
8B-42 SUPPLEMENTAL RESTRAINTS SYSTEM
Circuit Description
When the ignition switch is turned to ON, the sensing
and diagnostic module (SDM) will perform tests to
diagnose critical malfunctions within SDM itself. Upon
passing these tests ignition and deployment loop
voltages are measured to ensure that they are within
their respective normal voltage ranges. The SDM then
proceeds with resistance measurement test. Passenger
seat belt pretensioner low terminal 4 is grounded
through a current sink. The current source is connected
to passenger seat belt pretensioner high terminal 3 to
allow a known amount of the current flow. By monitoring
the voltage difference between passenger seat belt
pretensioner high and passenger seat belt pretensioner
low, the SDM calculates the combined resistance of
the passenger seat belt pretensioner inflator module,
the harness wiring, and connector terminal contacts.
DTC 20 Will Set When
DTC 20 will set when the resistance of passenger seat
belt pretensioner deployment loop is above specified
DIAGNOSTIC TROUBLE CODE (DTC) 20
PASSENGER SEAT BELT PRETENSIONER DEPLOYMENT LOOP
RESISTANCE HIGH
value (4.5 ± 0.5 Ω). The test is run once each ignition
cycle during the resistance measurement test when
the ignition voltage is above a specified value.
Action Taken
The SDM will turn on the airbag indicator (blink mode
4) and set DTC 20. And passenger seat belt
pretensioner deployment loop shutdown.
DTC 20 Will Clear When
The ignition switch is turned OFF or the scan tool
CLEAR CODES command is received.
Diagnostic Aids
All intermittent condition is likely to be the caused by
a poor connection from the passenger seat belt
pretensioner to the SDM terminal 3 or 4. The test for
this DTC is run only while the airbag indicator is
performing the start-up test. When a scan tool CLEAR
CODES command is issued and the malfunction is
still present, the DTC will not reappear until next ignition
cycle.
KAA8B120
DTC 20 - Passenger Seat Belt Pretensioner Deployment Loop Resistance High
Caution: The sensing and diagnosis module (SDM)
can maintain sufficient voltage to deploy the airbags
and pretensioners for 0.15 seconds after the ignition
is OFF and the fuse has been removed. If the airbags
or pretensioners are not disconnected, do not begin
service until one minute has passed after
disconnecting power to the SDM. Otherwise, injury
could result.Caution: During service procedure, be very careful
when handling the SDM. Never strike or jar the SDM.
Never power the supplemental restraints system
(SRS) when the SDM is not rigidly attached to the
vehicle. Also SDM mounting nuts must be carefully
tightened to ensure proper operation of the SRS.
The SDM could be activated if it is powered when it
is not rigidly attached to the vehicle, resulting in
unexpected deployment and possible injury.