Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 21q2h73z dtcc4000
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05-790
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
05259-35
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:
S 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 memory by the airbag sensor assy center.
If the power source voltage returns to normal, the SRS warning light will automatically go off.
S When 2 or more codes are indicated, the code with the lower number appears first.
S If a code is not listed on the display chart, the airbag sensor assy center may have failed.
S In the case of any malfunction concerning an open circuit, short to ground, or short to B+ due to a squib,
other trouble codes may not be detected. In this case, repair the malfunction currently indicated and
then perform malfunction diagnosis again.
S Mark in the check mode column:
"f": DTC is corresponding to the check mode.
"": DTC is not corresponding to the check mode.
S When DTC B1150/23 is detected as a result of troubleshooting for the Supplemental Restraint System,
perform troubleshooting for the occupant classification system as shown in the chart below.
SRS
DTC No. Check
Detection Item Trouble Area Warning
(See Page) Mode
Light
S Horn button assy (D squib)
B0100/13 S Spiral cable sub-assy
Short in D squib circuit f ON
(05-795 ) S Airbag sensor assy center
S Instrument panel wire
S Horn button assy (D squib)
B0101/14 S Spiral cable sub-assy
Open in D squib circuit f ON
(05-800 ) S Airbag sensor assy center
S Instrument panel wire
S Horn button assy (D squib)
B0102/11 Short in D squib circuit (to S Spiral cable sub-assy
f ON
(05-804 ) ground) S Airbag sensor assy center
S Instrument panel wire
S Horn button assy (D squib)
B0103/12 S Spiral cable sub-assy
Short in D squib circuit (to B+) f ON
(05-808 ) S Airbag sensor assy center
S Instrument panel wire
S Front passenger airbag assy (P squib)
B0105/53
Short in P squib circuit S Airbag sensor assy center f ON
(05-812 )
S Instrument panel wire
S Front passenger airbag assy (P squib)
B0106/54
Open in P squib circuit S Airbag sensor assy center f ON
(05-815 )
S Instrument panel wire
S Front passenger airbag assy (P squib)
B0107/51 Short in P squib circuit (to
S Airbag sensor assy center f ON
(05-818 ) ground)
S Instrument panel wire
S Front passenger airbag assy (P squib)
B0108/52
Short in P squib circuit (to B+) S Airbag sensor assy center f ON
(05-821 )
S Instrument panel wire
B0110/43 S Separate type front seat back assy (Side squib RH)
(*1) Short in side squib (RH) circuit S Airbag sensor assy center f Blink
(05-824 ) S Floor wire No.2
B0111/44 S Separate type front seat back assy (Side squib RH)
(*1) Open in side squib (RH) circuit S Airbag sensor assy center f Blink
(05-827 ) S Floor wire No.2
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 973
05-791
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
B0112/41 S Separate type front seat back assy (Side squib RH)
Short in side squib (RH) circuit
(*1) S Airbag sensor assy center f Blink
(to ground)
(05-830 ) S Floor wire No.2
B0113/42 S Separate type front seat back assy (Side squib RH)
Short in side squib (RH) circuit
(*1) S Airbag sensor assy center f Blink
(to B+)
(05-833 ) S Floor wire No.2
B0115/47 S Separate type front seat back assy (Side squib LH)
(*1) Short in side squib (LH) circuit S Airbag sensor assy center f Blink
(05-836 ) S Floor wire
B0116/48 S Separate type front seat back assy (Side squib LH)
(*1) Open in side squib (LH) circuit S Airbag sensor assy center f Blink
(05-839 ) S Floor wire
B0117/45 S Separate type front seat back assy (Side squib LH)
Short in side squib (LH) circuit
(*1) S Airbag sensor assy center f Blink
(to ground)
(05-842 ) S Floor wire
B0118/46 S Separate type front seat back assy (Side squib LH)
Short in side squib (LH) circuit
(*1) S Airbag sensor assy center f Blink
(to B+)
(05-845 ) S Floor wire
S Front seat inner belt assy LH
B0126/27 Seat belt buckle switch (LH) mal- S Airbag sensor assy center
ON
(05-848 ) function S Floor wire
S Seat wire No.2 (*2)
S Front seat outer belt assy RH (P/T squib RH)
B0130/63
Short in P/T squib (RH) circuit S Airbag sensor assy center f Blink
(05-860 )
S Floor wire No.2
S Front seat outer belt assy RH (P/T squib RH)
B0131/64
Open in P/T squib (RH) circuit S Airbag sensor assy center f Blink
(05-864 )
S Floor wire No.2
S Front seat outer belt assy RH (P/T squib RH)
B0132/61 Short in P/T squib (RH) circuit (to
S Airbag sensor assy center f Blink
(05-867 ) ground)
S Floor wire No.2
S Front seat outer belt assy RH (P/T squib RH)
B0133/62 Short in P/T squib (RH) circuit (to
S Airbag sensor assy center f Blink
(05-870 ) B+)
S Floor wire No.2
S Front seat outer belt assy LH (P/T squib LH)
B0135/73
Short in P/T squib (LH) circuit S Airbag sensor assy center f Blink
(05-873 )
S Floor wire
S Front seat outer belt assy LH (P/T squib LH)
B0136/74
Open in P/T squib (LH) circuit S Airbag sensor assy center f Blink
(05-877 )
S Floor wire
S Front seat outer belt assy LH (P/T squib LH)
B0137/71 Short in P/T squib (LH) circuit (to
S Airbag sensor assy center f Blink
(05-880 ) ground)
S Floor wire
S Front seat outer belt assy LH (P/T squib LH)
B0138/72 Short in P/T squib (LH) circuit (to
S Airbag sensor assy center f Blink
(05-883 ) B+)
S Floor wire
S Airbag sensor assy center
B1100/31 Airbag sensor assy center mal-
S Engine room main wire ON
(05-886 ) function
S Instrument panel wire
S Airbag sensor assy center
B1135/24 Half connection in airbag sensor S Instrument panel wire
ON
(05-873 ) assy center connectors S Floor wire
S Floor wire No.2
B1140/32 S Side airbag sensor assy RH
Side airbag sensor assy (RH)
(*1) S Airbag sensor assy center Blink
malfunction
(05-896 ) S Floor wire No.2
B1141/33 S Side airbag sensor assy LH
Side airbag sensor assy (LH)
(*1) S Airbag sensor assy center Blink
malfunction
(05-901 ) S Floor wire
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 974
05-792
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
S Airbag sensor front RH
B1148/36 Front airbag sensor (RH) mal- S Airbag sensor assy center
ON
(05-906 ) function S Engine room main wire
S Instrument panel wire
S Airbag sensor front LH
B1149/37 Front airbag sensor (LH) mal- S Airbag sensor assy center
ON
(05-910 ) function S Engine room main wire
S Instrument panel wire
S Occupant classification ECU
B1150/23 Occupant classification system S Airbag sensor assy center
ON
(05-914 ) malfunction S Floor wire No.2
S Front seat wire RH
S Air conditioning control assy
B1152/28 Passenger airbag ON/OFF indi-
S Airbag sensor assy center f ON
(05-921 ) cator circuit malfunction
S Instrument panel wire
S Seat position airbag sensor
B1153/25 Seat position airbag sensor assy
S Airbag sensor assy center ON
(05-929 ) malfunction
S Floor wire
B1154/38 S Airbag sensor rear RH
Airbag sensor rear (RH) mal-
(*1) S Airbag sensor assy center Blink
function
(05-941 ) S Floor wire No.2
B1155/39 S Airbag sensor rear LH
Airbag sensor rear (LH) malfunc-
(*1) S Airbag sensor assy center Blink
tion
(05-946 ) S Floor wire
B1160/83 S Curtain shield airbag assy RH (Curtain shield squib front RH)
Short in curtain shield squib
(*1) S Airbag sensor assy center f Blink
(RH) circuit
(05-951 ) S Floor wire No.2
B1161/84 S Curtain shield airbag assy RH (Curtain shield squib front RH)
Open in curtain shield squib
(*1) S Airbag sensor assy center f Blink
(RH) circuit
(05-955 ) S Floor wire No.2
B1162/81 S Curtain shield airbag assy RH (Curtain shield squib front RH)
Short in curtain shield squib
(*1) S Airbag sensor assy center f Blink
(RH) circuit (to ground)
(05-958 ) S Floor wire No.2
B1163/82 S Curtain shield airbag assy RH (Curtain shield squib front RH)
Short in curtain shield squib
(*1) S Airbag sensor assy center f Blink
(RH) circuit (to B+)
(05-961 ) S Floor wire No.2
B1165/87 S Curtain shield airbag assy LH (Curtain shield squib front LH)
Short in curtain shield squib
(*1) S Airbag sensor assy center f Blink
(LH) circuit
(05-964 ) S Floor wire
B1166/88 S Curtain shield airbag assy LH (Curtain shield squib front LH)
Open in curtain shield squib
(*1) S Airbag sensor assy center f Blink
(LH) circuit
(05-968 ) S Floor wire
B1167/85 S Curtain shield airbag assy LH (Curtain shield squib front LH)
Short in curtain shield squib
(*1) S Airbag sensor assy center f Blink
(LH) circuit (to ground)
(05-971 ) S Floor wire
B1168/86 S Curtain shield airbag assy LH (Curtain shield squib front LH)
Short in curtain shield squib
(*1) S Airbag sensor assy center f Blink
(LH) circuit (to B+)
(05-974 ) S Floor wire
S Horn button assy (D squib, Dual stage - 2nd step)
B1180/17 Short in D squib (Dual stage - S Spiral cable sub-assy
f ON
(05-977 ) 2nd step) circuit S Airbag sensor assy center
S Instrument panel wire
S Horn button assy (D squib, Dual stage - 2nd step)
B1181/18 Open in D squib (Dual stage - S Spiral cable sub-assy
f ON
(05-982 ) 2nd step) circuit S Airbag sensor assy center
S Instrument panel wire
S Horn button assy (D squib, Dual stage - 2nd step)
B1182/19 Short in D squib (Dual stage - S Spiral cable sub-assy
f ON
(05-986 ) 2nd step) circuit (to ground) S Airbag sensor assy center
S Instrument panel wire
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 975
05-793
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
S Horn button assy (D squib, Dual stage - 2nd step)
B1183/22 Short in D squib (Dual stage - S Spiral cable sub-assy
f ON
(05-990 ) 2nd step) circuit (to B+) S Airbag sensor assy center
S Instrument panel wire
S Front passenger airbag assy (P squib, Dual stage - 2nd step)
B1185/57 Short in P squib (Dual stage -
S Airbag sensor assy center f ON
(05-994 ) 2nd step) circuit
S Instrument panel wire
S Front passenger airbag assy (P squib, Dual stage - 2nd step)
B1186/58 Open in P squib (Dual stage -
S Airbag sensor assy center f ON
(05-997 ) 2nd step) circuit
S Instrument panel wire
S Front passenger airbag assy (P squib, Dual stage - 2nd step)
B1187/55 Short in P squib (Dual stage -
S Airbag sensor assy center f ON
(05-1000 ) 2nd step) circuit (to ground)
S Instrument panel wire
S Front passenger airbag assy (P squib, Dual stage - 2nd step)
B1188/56 Short in P squib (Dual stage -
S Airbag sensor assy center f ON
(05-1003 ) 2nd step) circuit (to B+)
S Instrument panel wire
B1630/83 S Curtain shield airbag assy RH (Curtain shield squib rear RH)
Short in curtain shield squib rear
(*1) S Airbag sensor assy center f Blink
(RH) circuit
(05-1006 ) S Floor wire No.2
B1631/84 S Curtain shield airbag assy RH (Curtain shield squib rear RH)
Open in curtain shield squib rear
(*1) S Airbag sensor assy center f Blink
(RH) circuit
(05-1010 ) S Floor wire No.2
B1632/81 S Curtain shield airbag assy RH (Curtain shield squib rear RH)
Short in curtain shield squib rear
(*1) S Airbag sensor assy center f Blink
(RH) circuit (to ground)
(05-1013 ) S Floor wire No.2
B1633/82 S Curtain shield airbag assy RH (Curtain shield squib rear RH)
Short in curtain shield squib rear
(*1) S Airbag sensor assy center f Blink
(RH) circuit (to B+)
(05-1016 ) S Floor wire No.2
B1635/87 S Curtain shield airbag assy LH (Curtain shield squib rear LH)
Short in curtain shield squib rear
(*1) S Airbag sensor assy center f Blink
(LH) circuit
(05-1019 ) S Floor wire
B1636/88 S Curtain shield airbag assy LH (Curtain shield squib rear LH)
Open in curtain shield squib rear
(*1) S Airbag sensor assy center f Blink
(LH) circuit
(05-1023 ) S Floor wire
B1637/85 S Curtain shield airbag assy LH (Curtain shield squib rear LH)
Short in curtain shield squib rear
(*1) S Airbag sensor assy center f Blink
(LH) circuit (to ground)
(05-1026 ) S Floor wire
B1638/86 S Curtain shield airbag assy LH (Curtain shield squib rear LH)
Short in curtain shield squib rear
(*1) S Airbag sensor assy center f Blink
(LH) circuit (to B+)
(05-1029 ) S Floor wire
System normal - OFF
Normal
S Battery
(05-1032 ) Voltage source drop ON
S Airbag sensor assy center
*1: w/ Side airbag
*2: w/ Power seat
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 976
05-794
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
2. DTCS FOR OCCUPANT CLASSIFICATION SYSTEM
HINT:
S When DTC B1150/23 is detected as a result of troubleshooting for the Supplemental Restraint System,
perform troubleshooting for the occupation classification system as shown in the chart below.
S Use the hand-held tester to check the DTCs of the occupant classification ECU, otherwise the DTCs
cannot be read.
DTC No. Passenger Airbag
Detection Item Trouble Area
(See page) OFF Indicator
S Passenger side buckle switch circuit S Front seat inner belt assy RH
B1771
malfunction S Occupant classification ECU ON
(05-1032 )
S Front seat wire RH
S Occupant classification sensor front S Seat adjuster frame assy
B1780 LH circuit malfunction (Occupant classification sensor front LH)
ON
(05-1038 ) S Occupant classification ECU
S Front seat wire RH
S Occupant classification sensor front S Seat adjuster frame assy
B1781 RH circuit malfunction (Occupant classification sensor front RH)
ON
(05-1045 ) S Occupant classification ECU
S Front seat wire RH
S Occupant classification sensor rear S Seat adjuster frame assy
B1782 LH circuit malfunction (Occupant classification sensor rear LH)
ON
(05-1052 ) S Occupant classification ECU
S Front seat wire RH
S Occupant classification sensor rear S Seat adjuster frame assy
B1783 RH circuit malfunction (Occupant classification sensor rear RH)
ON
(05-1059 ) S Occupant classification ECU
S Front seat wire RH
S Occupant classification sensor front S Occupant classification ECU
B1785
LH collision detection S Seat adjuster frame assy ON
(05-1066 )
(Occupant classification sensor front LH)
S Occupant classification sensor front S Occupant classification ECU
B1786
RH collision detection S Seat adjuster frame assy ON
(05-1069 )
(Occupant classification sensor front RH)
S Occupant classification sensor rear S Occupant classification ECU
B1787
LH collision detection S Seat adjuster frame assy ON
(05-1072 )
(Occupant classification sensor rear LH)
S Occupant classification sensor rear S Occupant classification ECU
B1788
RH collision detection S Seat adjuster frame assy ON
(05-1075 )
(Occupant classification sensor rear RH)
S Airbag sensor assy center commu- S Occupant classification ECU
B1790 nication circuit malfunction S Airbag sensor assy center
ON
(05-1078 ) S Floor wire No.2
S Front seat wire RH
S Occupant classification sensor power S Seat adjuster frame assy
B1793 supply circuit malfunction (Occupant classification sensors)
ON
(05-1086 ) S Front seat wire RH
S Occupant classification ECU
S Occupant classification ECU battery S Battery
positive line open S ECU-B fuse
B1794
S Floor wire No.2 ON
(05-1093 )
S Front seat wire RH
S Occupant classification ECU
S Occupant classification ECU malfunc- S Occupant classification ECU
B1795 tion S Front seat wire RH
ON
(05-1097 ) S ECU-B fuse
S Front seat inner belt assy RH (Buckle switch RH)
B1796 S Sleep operation failure of occupant S Occupant classification ECU
ON
(05-1099 ) classification ECU
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 977
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