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RS–48SUPPLEMENTAL RESTRAINT SYSTEM – AIRBAG SYSTEM
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C128725E05
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H100199E06
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DTC CHECK / CLEAR
1. CHECK DTC (USING SST (CHECK WIRE))
(a) Check the DTCs (Present trouble code).
(1) Turn the ignition switch ON, and wait for
approximately 60 seconds.
(2) Using SST, connect terminals 13(TC) and 4(CG)
of the DLC3.
SST 09843-18040
NOTICE:
Connect the terminals to the correct
positions to avoid a malfunction.
(b) Check the DTCs (Past trouble code)
(1) Using SST, connect terminals TC and 4(CG) of
the DLC3.
SST 09843-18040
NOTICE:
Connect the terminals to the correct
positions to avoid a malfunction.
(2) Turn the ignition switch ON, and wait for
approximately 60 seconds.
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(c) Read the DTCs.
(1) Read the blinking patterns of the DTCs. As
examples, the blinking patterns for the normal
system code and DTCs 11 and 31 are shown in
the illustration to the left.
• Normal system code indication (without past
trouble code):
The light blinks twice per second.
• Normal system code indication (with past
trouble code):
When the past trouble code is stored in the
center airbag sensor, the light blinks only
once per second.
• Trouble code indication:
The first blinking indicates the first DTC. The
second blinking occurs after a 1.5 second
pause.
If there is more than 1 code, there will be a 2.5
second pause between each code. After all
codes are shown, there will be a 4.0 second
pause, and then they all will be repeated.
HINT:
• If 2 or more malfunctions are found, the
indication begins with the smaller numbered
code.
• If DTCs are indicated without connecting the
terminals, proceed to the "TC and CG
Terminal Circuit" procedures (see page RS-
233).
2. CLEAR DTC (USING SST (CHECK WIRE))
(a) Clear the DTCs.
(1) When the ignition switch is turned OFF, the
DTCs are cleared.
HINT:
Depending on the DTC, the code may not be
cleared by turning off the ignition switch. In this
case, proceed to the next procedure.
(2) Using SST, connect terminals 13(13(TC)) and
4(CG) of the DLC3, and then turn the ignition
switch ON.
SST 09843-18040
(3) Disconnect terminal 13(TC) of the DLC3 within 3
to 10 seconds after the DTCs are output, and
check if the SRS warning light comes on after 3
seconds.
(4) Within 2 to 4 seconds after the SRS warning
light comes on, connect terminals 13(TC) and
4(CG) of the DLC3.
(5) The SRS warning light should go off within 2 to 4
seconds after connecting terminals 13(TC) and
4(CG) of the DLC3. Then, disconnect terminal
13(TC) within 2 to 4 seconds after the SRS
warning light goes off.
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RS–52SUPPLEMENTAL RESTRAINT SYSTEM – AIRBAG SYSTEM
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(6) The SRS warning light comes on again within 2
to 4 seconds after disconnecting terminal
13(TC). Then, reconnect terminals 13(TC) and
4(CG) within 2 to 4 seconds after the SRS
warning light comes on.
(7) Check if the SRS warning light goes off within 2
to 4 seconds after connecting terminals 13(TC)
and 4(CG) of the DLC3. Also check if the normal
system code is output within 1 second after the
SRS warning light goes off.
If DTCs are not cleared, repeat this procedure
until the codes are cleared.
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3. CHECK DTC (USING INTELLIGENT TESTER)
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Check the DTCs by following the prompts on the
tester screen.
HINT:
Refer to the intelligent tester operator's manual for
further details.
4. CLEAR DTC (USING INTELLIGENT TESTER)
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Clear the DTCs by following the prompts on the
tester screen.
HINT:
Refer to the intelligent tester operator's manual for
further details.
CHECK MODE PROCEDURE
1. CHECK MODE (SIGNAL CHECK)
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Select the "SIGNAL CHECK", and continue
checking with the intelligent tester.
NOTICE:
Select the "SIGNAL CHECK" from the "DTC
CHECK" screen displayed on the intelligent
tester to clear the output DTCs (both present
and past).
HINT:
• Check mode is more sensitive to malfunctions
than normal mode.
• If the normal system code is output in normal
mode even when a sensor signal malfunction is
suspected, perform the inspection in check
mode.
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DATA LIST / ACTIVE TEST
1. READ DATA LIST
HINT:
Using the intelligent tester's Data List allows switch,
sensor, actuator and other item values to be read without
removing any parts. Reading the Data List early in
troubleshooting in one way to save time.
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Read the Data List according to the display on the
tester.
Center airbag sensor
Item Measure Item / Range (Display) Normal Condition Diagnostic Note
D SEAT POSITIONSeat position (Driver side)/
FORWARD: Seat position
forward
BKWARD: Seat position
backward
FAIL: Failure detectedFORWARD/BKWARD -
PASSENGER CLASSFront passenger classification/
NG: Data is not determined
OFF: Vacant
CHILD: Child (Less than 36 kg
[79.37 lb]) seated
AF05: Adult (36 to 54 kg [79.37 to
119.05 lb]) seated
AM50: Adult (More than 54 kg
[119.05 lb]) seated
FAIL: Failure detectedNG/OFF/CHILD/AF05/AM50/FAIL -
D BUCKLE SWBuckle switch (Driver side)/
UNSET: Seat belt not fastened
SET: Seat belt fastened
NG: Data not determinedUNSET/SET -
P BUCKLE SWBuckle switch (Front passenger
side)/
UNSET: Seat belt not fastened
SET: Seat belt fastened
NG: Data not determinedUNSET/SET -
DISPLAY TYPEDisplay type identification
information/
LR: Display indicated by LH/RH
DP: Display indicated by Driver/
PassengerDP -
PAST CODESNumber of past DTCs / Min.: 0,
Max.: 2550-
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DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit
listed for the DTC in the table below (refer to the appropriate
page).
HINT:
• When the SRS warning light remains on and the normal
system code is output, a decrease in the source voltage is
likely to occur. This malfunction is not stored in the
memory of the center airbag sensor. If the power source
voltage returns to normal, the SRS warning light will
automatically go off.
• When 2 or more DTCs are indicated, the DTC with the
lowest number appears first.
• If a DTC is not listed on the DTC chart, the center airbag
sensor may have malfunctioned.
• In the case of any malfunctions concerning open circuits,
shorts to ground, or shorts to B+ due to squibs, other
DTCs may not be set. In this case, repair the malfunction
currently indicated and then perform a malfunction
diagnosis again.
• Mark in the check mode column:
-: DTC does not correspond to check mode.
: DTC corresponds to check mode.
• When DTC B1650/32 is set as a result of troubleshooting
the Supplemental Restraint System (SRS), perform
troubleshooting for the occupant classification system.
Airbag System
DTC No. Detection Item Check Mode SRS Warning Light See Page
B1000/31 Center Airbag Sensor
Assembly Malfunction-ONRS-58
B1602/83 Lost Communication with
Front Satellite Sensor Bus
RH-ONRS-59
B1603/83 Front Satellite Sensor Bus
RH Initialization
Incomplete-ONRS-59
B1607/84 Lost Communication with
Front Satellite Sensor Bus
LH-ONRS-70
B1608/84 Front Satellite Sensor Bus
LH Initialization
Incomplete-ONRS-70
B1610/13 Front Airbag Sensor RH
Circuit Malfunction-ONRS-81
B1612/83 Lost Communication with
Front Airbag Sensor RH-ONRS-59
B1613/83 Front Airbag Sensor RH
Initialization Incomplete-ONRS-59
B1615/14 Front Airbag Sensor LH
Circuit Malfunction-ONRS-83
B1617/84 Lost Communication with
Front Airbag Sensor LH-ONRS-70
B1618/84 Front Airbag Sensor LH
Initialization Incomplete-ONRS-70
B1620/21 Driver Side - Side Airbag
Sensor Circuit Malfunction-ONRS-85