SSANGYONG KORANDO 1997 Service Repair Manual

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-27
SSANGYONG MY2002
1. Disable the Supplemental Restraint System (SRS).
Refer to “Disabling the Supplemental Restraint
System (SRS)” in this section.
2. Virtually inspect the driver airbag circuit and
connectors, especially at the SDM.
Is there any evidence of rubbing, damage or chafing?
1. Repair the damaged wires or connectors.
2. Connect all the SRS components.
Is the repair complete?
1. Disconnect the SDM connector.
2. Disconnect driver airbag.
3. Turn the ignition ON.
4. Measure the resistance between terminal 1 (or 2) of
the driver airbag connector and ground.
Is the resistance within the specified value?
1. Disconnect C203.
2. Measure the resistance between terminal 1 (or 2) of
the driver airbag connector and ground.
Is the resistance within the specified value?
1. Repair short to ground in clock spring or replace
the clock spring as needed.
2. Connect all SRS components.
Is the repair complete?
1. Repair short to ground between SDM and C203.
2. Connect all SRS components.
Is the repair complete?
1. Connect dummy resistance (2.15 ± 0.35 Ω) to
driver airbag connector instead of driver airbag.
2. Enable the SRS.
3. Connect the scan tool to the data link connector
(DLC).
4. Clear DTC and request DTC.
Is the DTC 05 still present?
Replace driver airbag.
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 8 Go to Step 5
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -
- Go to Step 10 Go to Step 9 7
8
9
10
∞ Go to Step 7 Go to Step 6
-Go to “SRS
Diagnostic
System Check” -

SSANGYONG MY2002
8B-28 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
monitors the voltages at the driver low (terminal 14),
passenger low (terminal 11), driver seat belt
pretensioner low (terminal 7) and passenger seat belt
pretensioner low (terminal 4) to detect short to ground
in the deployment loops.
DTC 06 Will Set When
DTC 06 will set when the voltage at passenger airbag
low falls below a specified value, and ignition voltage
is within the normal operating voltage range.
DIAGNOSTIC TROUBLE CODE (DTC) 06
PASSENGER DEPLOYMENT LOOP SHORTED TO GROUND
This test is run during start-up test and every 250
milliseconds during continuous monitoring.
Action Taken
The SDM will turn on the airbag indicator (blink mode
3) and set DTC 06. The SDM will shutdown the
passenger airbag deployment loop.
DTC 06 Will Clear When
The scan tool CLEAR CODES command is received.
Diagnostic Aids
Carefully inspect the wires in passenger airbag
deployment loop for cutting or chafing.
KAA8B100
DTC 06 - Passenger Deployment Loop Shorted to Ground
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.
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
StepAction Value(s) Yes No
1-
Go to Step 2 -

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-29
SSANGYONG MY2002
1. Disable the Supplemental Restraint System (SRS).
Refer to “Disabling the Supplemental Restraint
System (SRS)” in this section.
2. Virtually inspect the passenger airbag circuit and
connectors, especially at the SDM.
Is there any evidence of rubbing, damage or chafing?
1. Repair the damaged wires or connectors.
2. Connect all the SRS components.
Is the repair complete?
1. Disconnect the SDM connector.
2. Disconnect passenger airbag.
3. Turn the ignition ON.
4. Measure the resistance between terminal 1 (or 2) of
the passenger airbag connector and ground.
Is the resistance within the specified value?
1. Repair short to ground in passenger airbag
deployment loop.
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.
3. Connect the scan tool to the data link connector
(DLC).
4. Clear DTC and request DTC.
Is the DTC 06 still present?
Replace passenger airbag.
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 6 Go to Step 5
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -
- Go to Step 8 Go to Step 7
7
8

SSANGYONG MY2002
8B-30 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
monitors the voltages at the driver low (terminal 14),
passenger low (terminal 11), driver seat belt
pretensioner low (terminal 7) and passenger seat belt
pretensioner low (terminal 4) to detect short to ground
in the deployment loops.
DTC 07 Will Set When
DTC 07 will set when the voltage at driver seat belt
pretensioner low falls below a specified value, and ignition
voltage is within the normal operating voltage range.
DIAGNOSTIC TROUBLE CODE (DTC) 07
DRIVER SEAT BELT PRETENSIONER SHORTED TO GROUND
This test is run during start-up test and every 250
milliseconds during continuous monitoring.
Action Taken
The SDM will turn on the airbag indicator (blink mode
4) and set DTC 07. The SDM will shutdown the driver
seat belt pretensioner deployment loop.
DTC 07 Will Clear When
The scan tool CLEAR CODES command is received.
Diagnostic Aids
Carefully inspect the wires in passenger airbag
deployment loop for cutting or chafing.
KAA8B120
DTC 07 - Driver Seat Belt Pretensioner Shorted to Ground
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.
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
StepAction Value(s) Yes No
1-
Go to Step 2 -

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-31
SSANGYONG MY2002
1. Disable the Supplemental Restraint System (SRS).
Refer to “Disabling the Supplemental Restraint
System (SRS)” in this section.
2. Virtually inspect the driver seat belt pretensioner
circuit and connectors, especially at the SDM.
Is there any evidence of rubbing, damage or chafing?
1. Repair the damaged wires or connectors.
2. Connect all the SRS components.
Is the repair complete?
1. Disconnect the SDM connector.
2. Disconnect driver airbag.
3. Turn the ignition ON.
4. Measure the resistance between terminal 1 (or 2) of
the driver seat belt pretensioner connector and
ground.
Is the voltage within the specified value?
1. Repair short to ground in driver seat belt
pretensioner deployment loop.
2.Connect all SRS components.
Is the repair complete?
1. Connect dummy resistance (2.15 ± 0.35 Ω) to
driver seat belt pretensioner connector instead of
driver seat belt pretensioner.
2. Enable the SRS.
3. Connect the scan tool to the data link connector
(DLC).
4. Clear DTC and request DTC.
Is the DTC 07 still present?
Replace driver 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 6 Go to Step 5
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -
- Go to Step 8 Go to Step 7
7
8

SSANGYONG MY2002
8B-32 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
monitors the voltages at the driver low (terminal 14),
passenger low (terminal 11), driver seat belt
pretensioner low (terminal 7) and passenger seat belt
pretensioner low (terminal 4) to detect short to ground
in the deployment loops.
DTC 08 Will Set When
DTC 08 will set when the voltage at passenger seat belt
pretensioner low falls below a specified value, and ignition
voltage is within the normal operating voltage range.
DIAGNOSTIC TROUBLE CODE (DTC) 08
PASSENGER SEAT BELT PRETENSIONER SHORTED TO GROUND
This test is run during start-up test and every 250
milliseconds during continuous monitoring.
Action Taken
The SDM will turn on the airbag indicator (blink mode
4) and set DTC 08. The SDM will shutdown the
passenger seat belt pretensioner deployment loop.
DTC 08 Will Clear When The scan tool CLEAR CODES
command is received.
Diagnostic Aids
Carefully inspect the wires in passenger airbag
deployment
loop for cutting or chafing.
KAA8B120
DTC 08 - Passenger Seat Belt Pretensioner Shorted to Ground
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.
Perform the SRS Diagnostic System Check.
Is the SRS Diagnostic System Check complete?
StepAction Value(s) Yes No
1-
Go to Step 2 -

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-33
SSANGYONG MY2002
1. Disable the Supplemental Restraint System (SRS).
Refer to “Disabling the Supplemental Restraint
System (SRS)” in this section.
2. Virtually inspect the passenger seat belt
pretensioner circuit and connectors, especially at
the SDM.
Is there any evidence of rubbing, damage or chafing?
1. Repair the damaged wires or connectors.
2. Connect all the SRS components.
Is the repair complete?
1. Disconnect the SDM connector.
2. Disconnect passenger seat belt pretensioner.
3. Turn the ignition ON.
4. Measure the resistance between terminal 1 (or 2) of
the passenger seat belt pretensioner connector
and ground.
Is the resistance within the specified value?
1. Repair short to ground in passenger seat belt
pretensioner deployment loop.
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.
3. Connect the scan tool to the data link connector
(DLC).
4. Clear DTC and request DTC.
Is the DTC 08 still present?
Replace 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 6 Go to Step 5
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -
- Go to Step 8 Go to Step 7
7
8

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.

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-35
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 17 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 17 still current?
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
C203 and ground.
Is the voltage within the specified value?
1. Repair short to ground or short to voltage circuit
between SDM and C203.
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” -
- Go to Step 9 Go to Step 12 7
8
9
10
-Go to “SRS
Diagnostic
System Check” - 1
- Go to Step 2 -
≈ 0 v Go to Step 11 Go to Step 10∞
- Go to Step 8 Go to Step 7

SSANGYONG MY2002
8B-36 SUPPLEMENTAL RESTRAINTS SYSTEM
1. Replace SDM.
2. Connect all SRS components.
Is the repair complete?
1. Repair short to ground or short to voltage circuit in
clock spring and replace the clock spring as
needed.
2. Connect all SRS components.
Is the repair complete?
StepAction Value(s) Yes No
11
12
-Go to “SRS
Diagnostic
System Check” -
-Go to “SRS
Diagnostic
System Check” -