1997 SSANGYONG KORANDO Service Repair Manual

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Page 1625 of 2053

SSANGYONG KORANDO 1997 Service Repair Manual 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 ma

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.

Page 1626 of 2053

SSANGYONG KORANDO 1997 Service Repair Manual SUPPLEMENTAL RESTRAINTS SYSTEM 8B-43
SSANGYONG MY2002
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
1. Disable the Supplemental Restraint System (SRS).
Refer

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-43
SSANGYONG MY2002
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
1. Disable the Supplemental Restraint System (SRS).
Refer to “Disabling the Supplemental Restraint
System (SRS)” in this section.
2. Disconnect the passenger seat belt pretensioner
yellow connector located inside of rear lower
quarter panel.
3. Inspect the passenger seat belt pretensioner
connector for damage or loose terminals or wires.
Is a faulty connector, terminal, or wire detected?
1. Repair or replace the faulty wires, terminals or
connectors.
2. Connect all the SRS components.
Is the repair complete?
1. Disconnect the SDM connector.
2. Check the SDM connector terminal 3 and 4 for
loose terminals.
Is a problem found?
1. Repair the loose terminals or wires.
2. Connect all SRS components.
Is the repair complete?
1. Connect dummy resistance (2.15 ± 0.35 Ω) to
passenger seat belt pretensioner connector
instead of passenger seat belt pretensioner.
2. Enable the SRS.
Is the repair complete?
Replace the passenger seat belt pretensioner.
Is the repair complete?
1. Disable the SRS.
2. Disconnect the SDM.
3. Measure resistance between terminal 1 or 2 of
passenger seat belt pretensioner connector and
ground.
Is the resistance equal to specified value?
4. Measure the voltage between terminal 1 or 2 of
passenger seat belt pretensioner connector and
ground.
Is the voltage within the specified value?
Repair short to ground or short to voltage circuit
between SDM to passenger seat belt pretensioner.
Is the repair complete?
1. Replace SDM.
2. Connect all SRS components.
Is the repair complete?
StepAction Value(s) Yes No
2
4
5
6
- Go to Step 3 Go to Step 4
3
-Go to “SRS
Diagnostic
System Check” -
- Go to Step 5 Go to Step 6
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” - 7
8
9
10
-Go to “SRS
Diagnostic
System Check” - 1
- Go to Step 2 -
≈ 0 v Go to Step 10 Go to Step 9∞
- Go to Step 7 Go to Step 8
-Go to “SRS
Diagnostic
System Check” -

Page 1627 of 2053

SSANGYONG KORANDO 1997 Service Repair Manual SSANGYONG MY2002
8B-44 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 ma

SSANGYONG MY2002
8B-44 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 21 Will Set When
DTC 21 will set when the resistance of the driver airbag
deployment loop is below a specified value (1.4 ± 0.5 Ω).
DIAGNOSTIC TROUBLE CODE (DTC) 21
DRIVER AIRBAG DEPLOYMENT LOOP RESISTANCE LOW
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 21. And driver airbag deployment loop
shutdown.
DTC 21 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 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 21 - Driver Airbag Deployment Loop Resistance Low
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.

Page 1628 of 2053

SSANGYONG KORANDO 1997 Service Repair Manual SUPPLEMENTAL RESTRAINTS SYSTEM 8B-45
SSANGYONG MY2002
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
1. Disable the Supplemental Restraint System (SRS).
Refer

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-45
SSANGYONG MY2002
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
1. Disable the Supplemental Restraint System (SRS).
Refer to “Disabling the Supplemental Restraint
System (SRS)” in this section.
2. Inspect the yellow clock spring connector at the
lower steering column.
Is a faulty connector or terminal or loose wire de-
tected?
1. Repair or Replace the faulty connector, terminal, or
wire.
2. Connect all the SRS components.
Is the repair complete?
1. Disconnect the SDM connector.
2. Check terminals 13 and 14 for loose terminals or
wire.
Is a problem found?
Replace the loose terminals or wires at SDM connec-
tor.
Is the repair complete?
1. Reconnect the SDM.
2. Connect dummy resistance (2.15 ± 0.35 Ω) to
driver airbag connector instead of driver airbag.
3. Connect other SRS components.
4. Enable the SRS.
5. Turn the ignition switch to ON and check for DTCs
with scan tool.
Is DTC 21 still current?
Replace driver airbag.
Is the repair complete?
1. Disable the SRS.
2. Disconnect C203.
3. Connect dummy resistance (2.15 ± 0.35 Ω) to SDM
side terminal of C203.
4. Enable the SRS.
5. Turn the ignition switch to ON and check for DTCs
with scan tool.
Is DTC 21 still current?
Measure resistance between terminal 1 and 2 of
connector C203.
Is the resistance within the specified value?
Repair open circuit between C203 and SDM.
Is the repair complete?
1. Disconnect the SDM.
2. Measure resistance between terminal 1 or 2 of
C203 and ground.
Is the resistance equal to specified value?
3. Measure the voltage between terminal 1 or 2 of the
driver airbag module and ground.
Is the voltage within the specified value?
StepAction Value(s) Yes No
2
4
5
6
- Go to Step 3 Go to Step 4
3
-Go to “SRS
Diagnostic
System Check” -
- Go to Step 5 Go to Step 6
-Go to “SRS
Diagnostic
System Check” -
7
8
9
10
-Go to “SRS
Diagnostic
System Check” - 1
- Go to Step 2 -
∞
- Go to Step 8 Go to Step 7
-Go to “SRS
Diagnostic
System Check” -
11
- Go to Step 9 Go to Step 14
≈ 0 v Go to Step 11 Go to Step 10
≈ 0 v Go to Step 10 Go to Step 9

Page 1629 of 2053

SSANGYONG KORANDO 1997 Service Repair Manual SSANGYONG MY2002
8B-46 SUPPLEMENTAL RESTRAINTS SYSTEM
1. Repair short to ground or short to voltage circuit
between SDM and C203.
2. Connect all SRS components.
Is the repair complete?
1. Replace SD

Page 1630 of 2053

SSANGYONG KORANDO 1997 Service Repair Manual SSANGYONG MY2002
8B-48 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 ma

SSANGYONG MY2002
8B-48 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 22 Will Set When
DTC 22 will set when the resistance of the passenger
airbag deployment loop is below a specified value
(1.4 ± 0.5 Ω).
DIAGNOSTIC TROUBLE CODE (DTC) 22
PASSENGER AIRBAG DEPLOYMENT LOOP RESISTANCE LOW
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 22. And passenger airbag deployment
loop shutdown.
DTC 22 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 22 - Passenger Airbag Deployment Loop Resistance Low
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.

Page 1631 of 2053

SSANGYONG KORANDO 1997 Service Repair Manual SUPPLEMENTAL RESTRAINTS SYSTEM 8B-49
SSANGYONG MY2002
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
1. Disable the Supplemental Restraint System (SRS).
Refer

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-49
SSANGYONG MY2002
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
1. Disable the Supplemental Restraint System (SRS).
Refer to “Disabling the Supplemental Restraint
System (SRS)” in this section.
2. Disconnect the passenger airbag module yellow
connector located at the rear of glove box.
3. Inspect the passenger airbag module connector
for damage or loose terminals or wires.
Is a faulty connector, terminal, or wire detected?
1. Repair or replace the faulty wires, terminals or
connectors.
2. Connect all the SRS components.
Is the repair complete?
1. Disconnect the SDM connector.
2. Check the SDM connector terminal 11 and 12 for
loose terminals.
Is a problem found?
1. Repair the loose terminals or wires.
2. Connect all SRS components.
Is the repair complete?
1. Connect dummy resistance (2.15 ± 0.35 Ω) to
passenger airbag connector instead of passenger
airbag.
2. Enable the SRS.
Is the repair complete?
Replace passenger airbag.
Is the repair complete?
Measure resistance between terminal 1 and 2 of the
passenger airbag module connector.
Is the resistance within the specified value?
Repair open circuit between passenger airbag module
connector and SDM.
Is the repair complete?
1. Disconnect the SDM.
2. Measure resistance between terminal 1 or 2 of the
passenger airbag module connector and ground.
Is the resistance equal to specified value?
3. Measure the voltage between terminal 1 or 2 of the
passenger airbag module connector and ground.
Is the voltage within the specified value?
Repair short to ground or short to voltage circuit
between SDM to passenger airbag module.
Is the repair complete?
1. Replace SDM.
2. Connect all SRS components.
Is the repair complete?
StepAction Value(s) Yes No
2
4
5
6
- Go to Step 3 Go to Step 4
3
-Go to “SRS
Diagnostic
System Check” -
- Go to Step 5 Go to Step 6
-Go to “SRS
Diagnostic
System Check” -
7
8
9
10
-Go to “SRS
Diagnostic
System Check” - 1
- Go to Step 2 -
∞
- Go to Step 7 Go to Step 8
-Go to “SRS
Diagnostic
System Check” -
11
≈ 0 v Go to Step 10 Go to Step 9
≈ 0 v Go to Step 12 Go to Step 11
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” - 12

Page 1632 of 2053

SSANGYONG KORANDO 1997 Service Repair Manual SSANGYONG MY2002
8B-50 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 ma

SSANGYONG MY2002
8B-50 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 23 Will Set When
DTC 23 will set when the resistance of driver seat belt
pretensioner deployment loop is below a specified
DIAGNOSTIC TROUBLE CODE (DTC) 23
DRIVER SEAT BELT PRETENSIONER DEPLOYMENT LOOP
RESISTANCE LOW
value (1.4 ± 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 23. And driver seat belt pretensioner
deployment loop shutdown.
DTC23 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 23 - Driver Seat Belt Pretensioner Deployment Loop Resistance Low
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.

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