trouble code connector SSANGYONG KORANDO 1997 Service Manual PDF
[x] Cancel search | Manufacturer: SSANGYONG, Model Year: 1997, Model line: KORANDO, Model: SSANGYONG KORANDO 1997Pages: 2053, PDF Size: 88.33 MB
Page 1589 of 2053

SSANGYONG MY2002
8B-4 SUPPLEMENTAL RESTRAINTS SYSTEM
KAA8B030
KAA8B040
Passenger Airbag Module
Caution: Tampering with passenger airbag module
creates the risk of an injury from unexpected
deployment. Therefore, the passenger airbag
module should never be disassembled.
The passenger airbag module is on the passenger of
the instrument panel. The passenger airbag module
contains an igniter charge and a gas generator to inflate
the folded airbag.
The airbag contains a shorting bar, which short-circuit
the passenger high circuit to passenger low circuit when
the connector is disconnected. The shorting bar pre-
vents current from traveling through the passenger air-
bag module during servicing. The shorting bar is
disengaged when the connector is connected.
FRONT SEAT BELT PRETENSIONERS
Caution: Tampering with seat belt pretensioner
creates the risk of an injury from unexpected
deployment. Therefore, the seat belt pretensioner
should never be disassembled.
The seat belt pretensioners are assembled with each
front seat belt retractor to retract the seat belt webbing
when accounted a frontal collision. The seat belt preten-
tioners are controlled by sensing and diagnostic
Module (SDM).
The seat belt pretensioner contains an igniter charge
and a gas generator to pull the seat belt webbing. The
seat belt pretensioner must be replaced after an acci-
dent that causes its activation.
The seat belt pretensioner also contains a shorting bar
to prevent current from traveling through the seat belt
pretensioner during servicing. The shorting bar is
disengaged when the connector is connected.
SENSING AND DIAGNOSTIC
MODULE (SDM)
Caution: During the service procedures, be careful
when handling the SDM. Never shake or jar the
SDM. Never apply power to SRS when the SDM is
not rigidly attached to the vehicle. All SDM
mounting nuts and grounding nut must be fully
tightened. Failures to follow these precautions could
cause deployment and results in personal injury.
The SDM located on floor beneath the instrument panel.
The SDM performs the following functions:
Monitors the supplemental restraint system (SRS)
electrical components and sets a diagnostic trouble
code (DTC) when malfunction is detected.
Displays SRS diagnostic trouble codes and system
status information when connected to a scan tool.
Illuminates the airbag indicator to alert the driver to
any fault.
Provides a reserve power source to deploy the air-
bags and pretensioners if an accident has disabled
the normal power source.
Monitors vehicle velocity changes to detect frontal
impacts, which are severe enough to warrant deployment.
Causes current to flow through the airbag modules
and pretensioner to cause deployment if a frontal
impact of sufficient force is detected.
The SDM contains no user-serviceable parts.
KAA8B050
Page 1592 of 2053

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-7
SSANGYONG MY2002
Driver Deployment Loop Shorted to Voltage
Passenger Deployment Loop Shorted to Voltage
Driver Seat Belt Pretensioner Shorted to Voltage
Passenger Seat Belt Pretensioner Shorted to Voltage
Driver Deployment Loop Shorted to Ground
Passenger Deployment Loop Shorted to Ground
Driver Seat Belt Pretensioner Shorted to Ground
Passenger Seat Belt Pretensioner Shorted to Ground
Driver Energy Shutdown Switch Error
Passenger Energy Shutdown Switch Error
Driver Seat Belt Pretensioner Energy Shutdown Switch Error
Passenger Seat Belt Pretensioner Energy Shutdown
Switch Error
Driver Ignition Switch Fault Internal
Passenger Ignition Switch Fault Internal
Driver Seat Belt Pretensioner Ignition Switch Fault
Passenger Seat Belt Pretensioner Ignition Switch Fault 01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
DIAGNOSTIC INFORMATION AND PROCEDURES
DIAGNOSTIC TROUBLE CODES
(DTC)
When the sensing and diagnosticmodule (SDM)
detects any problem it illuminates or blinks the airbag
warning indicator and keeps the diagnostic trouble
codes (DTCs). The supplemental restraint system
(SRS) Diagnostic System Check must always be the
starting point for any SRS diagnosis. The SRS
Diagnostic System Check reveals DTCs through the
use of scan tool. It also checks for proper airbag
warning lamp operation.
The two types of DTCs that may be recorded are as
follows:
1. Current DTCs represent malfunction currently being
detected. Current DTCs are stored in random
access memory (RAM).
2. Historic DTCs represent malfunctions detected since
the last time the historic memory was cleared.
Historic DTCs are stored in the electrically erasable
programmable read-only memory (EEPROM).
The DTC is differentiates internal and external faults
upon the cause of the defects. Internal faults can not
be cured, replace the SDM. Refer to “Diagnostic
Trouble Code Table” in this section.
SCAN TOOL DIAGNOSTICS
A scan tool can read serial data from terminal 9 of the
data link connector (DLC). The scan tool is used to
read diagnostic trouble codes (DTCs), and to clear
some DTCs after a repair is completed. By design,
certain codes cannot be cleared.
To use the scan tool, turn the ignition OFF, connect
the scan tool to the DLC, and turn the ignition switch
to ON. Follow the instructions in the scan tool manual.
The SDM sends serial data from terminal 20 of the
SDM to terminal 9 of the DLC.
USE OF SPECIAL TOOLS
Use a scan tool to read and clear diagnostic trouble
codes (DTCs). A connector adapter kit provides
jumper wires and terminal adapters to make it easier
to test small terminals. In diagnostic testing, use load
tool or dummy resistance to substitute for airbag
modules.
DIAGNOSTIC TROUBLE CODE TABLE
DTC DescriptionAirbag Warn-
ing Indicator
Blink Mode Error HandingType of the
Faults
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal3
3
4
4
3
3
4
4
Partial
Shutdown
Page 1595 of 2053

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.
Page 1618 of 2053

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.
Page 1621 of 2053

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.
Page 1623 of 2053

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.
Page 1625 of 2053

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 1627 of 2053

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 1630 of 2053

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 1632 of 2053

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.