2001 TOYOTA SEQUOIA Service Repair Manual

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Page 1585 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual H01024H23360
P Squib
Airbag
Sensor
Assembly
C D
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1383
1577 Author: Date:
2005 SEQUOIA (RM1146U)
10 Check front passenger airbag assembly (P squib).
P

Page 1586 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±1384
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1578 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1810/53 Short in D Squib (Dual stage ± 2nd step)
Circuit
DTC B1811/53 Open in D Squib (Dual st

DI±1384
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1578 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1810/53 Short in D Squib (Dual stage ± 2nd step)
Circuit
DTC B1811/53 Open in D Squib (Dual stage ± 2nd step)
Circuit
DTC B1812/53 Short in D Squib (Dual stage ± 2nd step)
Circuit (to Ground)
DTC B1813/53 Short in D Squib (Dual stage ± 2nd step)
Circuit (to B+)
CIRCUIT DESCRIPTION
The D squib (Dual stage ± 2nd step) circuit consists of the airbag sensor assembly, the spiral cable and the
steering wheel pad.
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are recorded when a malfunction is detected in the D squib (Dual stage ± 2nd step) circuit.
DTC No.DTC Detection ConditionTrouble Area
B1810/53
The airbag sensor assembly receives a line short circuit
signal 5 times in the D squib (Dual stage ± 2nd step) cir-
cuit during primary check.
Spiral cable malfunction
D squib malfunction
Airbag sensor assembly malfunction
Steering wheel pad (D squib, Dual stage ± 2nd step)
Airbag sensor assembly
Spiral cable
Cowl wire
B1811/53
The airbag sensor assembly receives an open circuit sig-
nal in the D squib (Dual stage ± 2nd step) circuit for 2 se-
conds.
Spiral cable malfunction
D squib malfunction
Airbag sensor assembly malfunction
Steering wheel pad (D squib, Dual stage ± 2nd step)
Airbag sensor assembly
Spiral cable
Cowl wire
B1812/53
The airbag sensor assembly receives a short circuit to
ground signal in the D squib (Dual stage ± 2nd step) cir-
cuit for 0.5 seconds.
Spiral cable malfunction
D squib malfunction
Airbag sensor assembly malfunction
Steering wheel pad (D squib, Dual stage ± 2nd step)
Airbag sensor assembly
Spiral cable
Cowl wire
B1813/53
The airbag sensor assembly receives a short to B+ circuit
signal in the D squib (Dual stage ± 2nd step) circuit for 0.5
seconds.
Spiral cable malfunction
D squib malfunction
Airbag sensor assembly malfunction
Steering wheel pad (D squib, Dual stage ± 2nd step)
Airbag sensor assembly
Spiral cable
Cowl wire
DIDHK±01

Page 1587 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual H01451
Airbag Sensor Assembly
A208
D2+ Y±R D Squib
A23
Spiral CableA207
D2± Y±G 4
3
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1385
1579 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

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TOYOTA SEQUOIA 2001 Service Repair Manual DI±1386
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1580 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
Be sure to perform the following procedures before troubleshooting to avoid unex

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TOYOTA SEQUOIA 2001 Service Repair Manual H41475H23348
D Squib
(Dual stage ±
2nd step)
D2+ D2±
Spiral
CableAirbag
Sensor
Assembly
Color: Black
A
B D EC F
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1387
1581 Author: Date:
2005 SEQUOI

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