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SsangYong Korando II (1996-2006 year). Service manual - part 399

SUPPLEMENTAL RESTRAINTS SYSTEM 8B-9

SSANGYONG MY2002

Battery Voltage is out of specification

Fault Code List

Upper Side Application Specific Integrated Circuit

Communication

Lower Side Application Specific Integrated Circuit

Communication

No Electronically Erasable Programmable Read Only

Memory (EEPROM) Program Error

Electronically Erasable Programmable Read Only

Memory (EEPROM) Checksum Error

Electronically Erasable Programmable Read Only

Memory (EEPROM) Map Error

External Watchdog 1 Internal

Arming Sensor No Close Internal

Random Access Memory (RAM) Check Internal

System Internal

External Watchdog 2 Internal

Pulse Internal

Collision Signal Internal

Collision Number Internal

127

128

Diagnostic Trouble Code Table (Cont’d)

DTC

Description

Airbag Warn-

ing Indicator

Blink Mode

Error Handing

Type of the

Faults

Internal

Total

Shutdown

Additional

Error Code

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,
i n c o r r e c t d i a g n o s i s , a n d i n c o r r e c t p a r t s
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
s e r v i c e u n t i l o n e m i n u t e h a s p a s s e d a f t e r
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 1

Go to Step 2

Go to Step 3

Go to Step 4

Go to Step 6

System OK

Go to Step 9

Value

Step

Action

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?

SSANGYONG MY2002

8B-12 SUPPLEMENTAL RESTRAINTS SYSTEM

Sensing and Diagnostic Module (SDM) Integrity 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
s e r v i c e u n t i l o n e m i n u t e h a s p a s s e d a f t e r
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
operation. 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

Chear the SRS

DTCs and go

to “Diagnostic
system Check”

Go to Step 3

Go to Step 2

Go to table for

the DTC

indicated

Value

Step

Action

1. Turn the ignition to LOCK and remove the key.
2. Connect all SRS components, and ensure that all

components are properly mounted.

3. Ensure that the ignition switch has been off for at least

30 seconds.

4. Observe the airbag indicator as the ignition is turned

ON.

Does the indicator lamp turn on for 4.5 seconds and then
turn off?
1. Turn the ignition to LOCK and remove the key.
2. Connect the scan tool to 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.
Is the same DTC displayed that was previously occurring
when the SRS Diagnostic System Check was previously
performed?

SENSING AND DIAGNOSTIC MODULE (SDM) INTEGRITY CHECK

The following diagnostic chart must be used when all
circuitry outside the sensing and diagnostic module
(SDM) has been found to operate properly, as indicated
by following the appropriate diagnostic trouble code
(DTC) chart. The chart verifies the need for SDM
replacement.

Circuit Description

When the SDM recognizes ignition voltage greater then
9 volts at terminal 5 of the SDM, the airbag indicator is
turns on for 4.5 seconds to verify operation. At this
time the SDM performs start-up tests followed by
r e s i s t a n c e m e a s u r e m e n t t e s t s a n d c o n t i n u e s
monitoring tests. When malfunction is detected, the
SDM sets a current DTC and illuminates or blinks the
airbag indicator. When the malfunction is no longer
detected and/or the ignition switch is cycled, the SDM
will clear current DTCs and move them to a history file,
except for the DTCs 18, 24, 51, 53 and sometimes 71.
DTCs 18, 24, 51 and 53 will not clear using a scan tool
because these codes require replacement of SDM. The
SDM must be replaced only after the malfunction that
set the DTC has been repaired.

Diagnostic Aids

Test Description

The numbers below refer to steps on the diagnostic
table.

1. This test confirms a current malfunction. If no current

malefaction is occurring, refer to “Diagnostic Aids”
for the appropriate DTC. The SDM should not be
replaced for a historic DTC except when directed.

2. This test checks for a malfunction introduced into

the supplemental restraints system (SRS) during
the diagnostic procedure. It is extremely unlikely
that a malfunctioning SDM would cause a new
malfunction to occur during the diagnostic process.

4. See the caution below.

Content .. 397 398 399 400 ..