2001 TOYOTA SEQUOIA airbag off
[x] Cancel search: airbag offPage 1349 of 4323
DIDGN±01
H10658
DLC3
TC CG
H13050
0.5
2.5 4.0
1.50.5
DTC 11
DTC 31Repeat 0.75
ON
OFF0.25 0.25
ON
OFF
0.25 Normal System Code
(w/o Past Trouble Code)
Normal System Code
(w/ Past Trouble Code)
Trouble Code
(Example Codes 11 and 31)
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1147
1341 Author: Date:
2005 SEQUOIA (RM1146U)
DTC CHECK / CLEAR
1. CHECK DTC (Using SST check wire)
(a) Check the DTCs (Present trouble code).
(1) Turn the ignition switch to the ON position, and wait
for approximately 60 seconds.
(2) Using SST, connect terminals TC and 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 CG of the
DLC3.
SST 09843±18040
NOTICE:
Connect the terminals to the correct positions to avoid a
malfunction.
(2) Turn the ignition switch to the ON position, and wait
for approximately 60 seconds.
(c) Read the DTCs.
Read the blinking patterns of the DTCs. As examples, the
blinking patterns for trouble codes 11 and 31 are shown
in the illustration to the left.
Normal system code (w/o past trouble code)
The light blinks twice per second.
Normal system code (w/ past trouble code)
When the past trouble code is stored in the
airbag sensor assy center, the light blinks
only once per second.
Trouble code
The first blinking indicates the first DTC. The
second blinking occurs after a 1.5±second
pause.
If there are 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 they all will be repeated.
HINT:
If 2 or more malfunctions are found, the indication begins
with the smallest numbered code.
If DTCs are indicated without connecting the terminals,
proceed to the ºTC terminal circuitº on page DI±1498.
Page 1357 of 4323
DIDGQ±01
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1155
1349 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSTIC TROUBLE CODE CHART
1. DTCS FOR SUPPLEMENTAL RESTRAINT SYSTEM
If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below
(Proceed to the page listed for that circuit).
HINT:
When the SRS warning light remains on and the DTC output is the normal system code, a voltage
source drop is likely to occur. This malfunction is not stored in the memory by the airbag sensor assem-
bly. If the power source voltage returns to normal, the SRS warning light will automatically go off.
When 2 or more codes are indicated, the code with the lower number appears first.
If a code is not listed on the display chart, the airbag sensor assembly may have failed.
In the case of any malfunction concerning an open circuit, short to ground, or short to B+ due to a squib,
other malfunction codes may not be detected. In this case, repair the malfunction currently indicated
and then perform malfunction diagnosis again.
Mark in the check mode column:
ºº: DTC is corresponding to the check mode.
º º: DTC is not corresponding to the check mode.
When the DTC B1650/32 is detected as a result of troubleshooting for the Supplemental Restraint Sys-
tem, perform troubleshooting for the occupant classification system as shown in the chart below.
DTC No.
(See
Page)
Detection ItemTrouble AreaCheck ModeSRS
Warning Light
B1000/31
(DI±1161)Airbag sensor assembly malfunctionAirbag sensor assemblyON
B1610/13
(DI±1162)Front airbag sensor RH malfunction
Front airbag sensor RH
Airbag sensor assembly
Cowl wire
Engine room main wire
ON
B1615/14
(DI±1171)Front airbag sensor LH malfunction
Front airbag sensor LH
Airbag sensor assembly
Cowl wire
Engine room main wire
ON
B1620/21
(*1)
(DI±1180)
Side airbag sensor assembly RH malfunction
Side airbag sensor assembly RH
Airbag sensor assembly
Floor wire
ON
B1625/22
(*1)
(DI±1186)
Side airbag sensor assembly LH malfunction
Side airbag sensor assembly LH
Airbag sensor assembly
Floor wire No. 2
ON
B1630/23
(*1)
(DI±1192)
Curtain shield airbag sensor RH malfunction
Curtain shield airbag sensor assembly RH
Airbag sensor assembly
Floor wire
ON
B1635/24
(*1)
(DI±1198)
Curtain shield airbag sensor LH malfunction
Curtain shield airbag sensor assembly LH
Airbag sensor assembly
Floor wire No. 2
ON
B1650/32
(DI±1204)Occupant classification system malfunction
Occupant classification system
Airbag sensor assembly
Floor wire
Seat wire No. 1
ON
B1653/35
(DI±1213)Seat position sensor assembly malfunction
Seat position airbag sensor assembly
Airbag sensor assembly
Floor wire No. 2
ON
Page 1358 of 4323
DI±1156
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1350 Author: Date:
2005 SEQUOIA (RM1146U)B1656/38
(DI±1220)
Seat belt buckle switch LH malfunction
Front seat inner belt LH
Airbag sensor assembly
Floor wire No. 2
ON
B1660/43
(DI±1227)Passenger airbag ON/OFF indicator malfunction
Integration control and panel (Passenger
airbag ON/OFF indicator)
Airbag sensor assembly
Cowl wire
ON
B1661/44
(*1)
(DI±1238)
Roll over cut off indicator malfunction
Combination meter (RSCA OFF indicator)
Airbag sensor assembly
Cowl wire
ON
B1662/45
(DI±1247)SRS warning light circuit malfunction
Combination meter (SRS warning light)
Airbag sensor assembly
Cowl wire
ON
B1800/51
(DI±1352)Short in D squib circuit
Steering wheel pad (D squib)
Spiral cable
Airbag sensor assembly
Cowl wire
ON
B1801/51
(DI±1352)Open in D squib circuit
Steering wheel pad (D squib)
Spiral cable
Airbag sensor assembly
Cowl wire
ON
B1802/51
(DI±1352)Short in D squib circuit (to ground)
Steering wheel pad (D squib)
Spiral cable
Airbag sensor assembly
Cowl wire
ON
B1803/51
(DI±1352)Short in D squib circuit (to B+)
Steering wheel pad (D squib)
Spiral cable
Airbag sensor assembly
Cowl wire
ON
B1805/52
(DI±1374)Short in P squib circuit
Front passenger airbag assembly (P squib)
Airbag sensor assembly
Cowl wire
ON
B1806/52
(DI±1374)Open in P squib circuit
Front passenger airbag assembly (P squib)
Airbag sensor assembly
Cowl wire
ON
B1807/52
(DI±1374)Short in P squib circuit (to ground)
Front passenger airbag assembly (P squib)
Airbag sensor assembly
Cowl wire
ON
B1808/52
(DI±1374)Short in P squib circuit (to B+)
Front passenger airbag assembly (P squib)
Airbag sensor assembly
Cowl wire
ON
B1810/53
(DI±1384)Short in D squib (Dual stage ± 2nd step) circuit
Steering wheel pad (D squib, Dual stage ±
2nd step)
Spiral cable
Airbag sensor assembly
Cowl wire
ON
B1811/53
(DI±1384)Open in D squib (Dual stage ± 2nd step) circuit
Steering wheel pad (D squib, Dual stage ±
2nd step)
Spiral cable
Airbag sensor assembly
Cowl wire
ON
Page 1361 of 4323
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1159
1353 Author: Date:
2005 SEQUOIA (RM1146U)Normal
(DI±1480)
Source voltage dropBattery
Airbag sensor assemblyON
NormalSystem normalOFF
*1: w/ Side and curtain shield airbag
2. DTCS FOR OCCUPANT CLASSIFICATION SYSTEM
If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below
(Proceed to the page listed for that circuit).
HINT:
When the DTC B1650/32 is detected as a result of troubleshooting for the Supplemental Restraint Sys-
tem, perform troubleshooting for the occupant classification system as shown in the chart below.
Use the hand±held tester to check/clear the DTC of the occupant classification ECU, otherwise the
DTC cannot be check/clear.
DTC No.
(See Page)Detection ItemTrouble AreaPassenger Airbag
ON/OFF Indicator
B1771
(DI±1251)Passenger side buckle switch circuit
malfunctionFront seat inner belt RH
Occupant classification ECU
Seat wire No. 1
ON
B1780
(DI±1260)
Occupant classification sensor front
LH circuit malfunctionFront seat assembly RH (Occupant classification sensor
front LH)
Occupant classification ECU
Seat wire No. 1
ON
B1781
(DI±1270)
Occupant classification sensor front
RH circuit malfunctionFront seat assembly RH (Occupant classification sensor
front RH)
Occupant classification ECU
Seat wire No. 1
ON
B1782
(DI±1280)
Occupant classification sensor rear
LH circuit malfunctionFront seat assembly RH (Occupant classification sensor
rear LH)
Occupant classification ECU
Seat wire No. 1
ON
B1783
(DI±1290)
Occupant classification sensor rear
RH circuit malfunctionFront seat assembly RH (Occupant classification sensor
rear RH)
Occupant classification ECU
Seat wire No. 1
ON
B1785
(DI±1300)Occupant classification sensor front
LH collision detectionFront seat assembly RH (Occupant classification sensor
front LH)
Occupant classification ECU
ON
B1786
(DI±1305)Occupant classification sensor front
RH collision detectionFront seat assembly RH (Occupant classification sensor
front RH)
Occupant classification ECU
ON
B1787
(DI±1310)Occupant classification sensor rear
LH collision detectionFront seat assembly RH (Occupant classification sensor
rear LH)
Occupant classification ECU
ON
B1788
(DI±1315)Occupant classification sensor rear
RH collision detectionFront seat assembly RH (Occupant classification sensor
rear RH)
Occupant classification ECU
ON
B1790
(DI±1320)
Airbag sensor assembly communica-
tion circuit malfunctionOccupant classification ECU
Airbag sensor assembly
Floor wire
Seat wire No. 1
ON
B1793
(DI±1332)Occupant classification sensor power
supply circuit malfunctionOccupant classification ECU
Front seat assembly RH (Occupant classification sensors)
Seat wire No. 1
ON
Page 1429 of 4323
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1227
1421 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1660/43 Passenger Airbag ON/OFF Indicator
Malfunction
CIRCUIT DESCRIPTION
The passenger airbag ON/OFF indicator circuit consists of the airbag sensor assembly and the integration
control and panel.
This circuit indicates the operation condition of the front passenger airbag assembly, the side airbag assem-
bly RH and seat belt pretensioner RH.
DTC B1660/43 is recorded when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1660/43
The airbag sensor assembly receives a line short circuit
signal, an open circuit signal, a short circuit to ground sig-
nal or a short circuit to B+ signal in the passenger airbag
ON/OFF indicator circuit for 2 seconds.
Passenger airbag ON/OFF indicator malfunction
Airbag sensor assembly malfunction
Integration control and panel
(Passenger airbag ON/OFF indicator)
Airbag sensor assembly
Cowl wire
DIDH1±01
Page 1430 of 4323
H23994
Airbag Sensor
Assembly
PAON A20 IM1
IGN123
4
L
16 I19
Passenger Airbag ON/OFF Indicator
(Integration Control and Panel)
3ESub J/B No. 3
5P±AB A2017
IG2 A2021
E1 A2025
E2 A2026 V
IM13
17
2 PAON
P±AB
IG+3A15 L
V
R±L
R±L
GAUGE 1C2
1A3
1E7
1C4B
B±Y I18
Ignition SW
IG1 AM1
IG2 AM22
6 5 1
Instrument Panel J/B W±L
W±RInstrument Panel J/B
Instrument Panel J/B
1A
1A6
8 1F
1F9
10 W±B
W±B A
A J8
J/C
W±B W±B
1C3
1C61J7
1L 1 AM1
W W±REngine Room J/B
2C1
2D1 AM2
F10
Fusible Link Block
84
5
B
BatteryALT
IE B±R
2
1B DI±1228
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1422 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM
Page 1431 of 4323
H22552
Ignition Switch
Passenger Airbag
ON/OFF Indicator
(ºONº)
Passenger Airbag
ON/OFF Indicator
(ºOFFº)ON
OFF
ABC
4 sec. 2 sec.
4 sec. 2 sec.
ON/OFF condition depends on the
front passenger detection results. ON
OFF
ON
OFF
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1229
1423 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check passenger airbag ON/OFF indicator.
CHECK:
(a) Turn the ignition switch to the ON position.
(b) Check the passenger airbag ON/OFF indicator operation.
HINT:
Refer to the normal condition of the passenger airbag ON/OFF indicator (see page DI±1137).
RESULT:
A:
During period ºAº in the illustration, even if both the ºONº and ºOFFº passenger airbag ON/OFF
indicators normally come on, both of them do not go off during period ºBº.
During periods ºAº and ºBº in the illustration, even if both the ºONº and ºOFFº passenger air-
bag ON/OFF indicators normally come on, both of them come on during period ºCº.
B:
During period ºAº, neither the ºONº nor ºOFFº passenger airbag ON/OFF indicators come on,
or either of them does not come on.
During period ºCº, even if the front passenger seat is occupied, neither the ºONº nor ºOFFº
passenger airbag ON/OFF indicators come on.
B Go to step 7.
A
Page 1432 of 4323
H24023
DI±1230
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1424 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check integration control and panel (passenger airbag ON/OFF indicator).
PREPARATION:
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor as-
sembly.
(d) Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position.
(b) Check the passenger airbag ON/OFF indicator operation.
OK:
Neither the ºONº nor ºOFFº passenger airbag ON/
OFF indicators come on.
NG Go to step 3.
OK
Replace airbag sensor assembly (see page RS±82).
3 Prepare for inspection.
PREPARATION:
CAUTION:
Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag de-
ployment.
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the battery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor assembly.
(d) Disconnect the connectors from the steering wheel pad.
(e) Disconnect the connectors from the front passenger airbag assembly.
(f) w/ Side and curtain shield airbag:
Disconnect the connectors from the side airbag assembly LH and RH.
(g) w/ Side and curtain shield airbag:
Disconnect the connectors from the curtain shield airbag assembly LH and RH.
(h) Disconnect the connectors from the front seat outer belt LH and RH.
NEXT