TOYOTA PRIUS 2001 Service Repair Manual
Manufacturer: TOYOTA, Model Year: 2001, Model line: PRIUS, Model: TOYOTA PRIUS 2001Pages: 1943, PDF Size: 18.26 MB
Page 1071 of 1943
H01356H01233AB0130AB0045AB0046H02248
H02249H11587
Airbag Sensor Assembly Connector
Short SpringShort SpringShort Spring
Before ReleaseAfter Release
Connector
Connector
Short SpringShort Spring
Before Release
Paper
After Release
Paper
4
Paper
213
814
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±507
2001 PRIUS (RM778U)
Page 1072 of 1943
DI6OZ±06
DI±508
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table
below (Proceed to the page given for that circuit.).
DTC No.
(See Page)Detection ItemTrouble AreaSRS
Warning Light
B0100/13
(DI±510)
Short in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0101/14
(DI±515)
Open in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0102/11
(DI±519)
Short in D squib circuit (to ground)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0103/12
(DI±523)
Short in D squib circuit (to B+)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0105/53
(DI±527)Short in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0106/54
(DI±531)Open in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0107/51
(DI±534)Short in P squib circuit (to ground)Front passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0108/52
(DI±537)Short in P squib circuit (to B+)Front passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0110/43
(DI±540)Short in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0111/44
(DI±544)Open in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0112/41
(DI±550)Short in side squib (RH) circuit
(to ground)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0113/42
(DI±550)Short in side squib (RH) circuit
(to B+)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0115/47
(DI±553)Short in side squib (LH) circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0116/48
(DI±557)Open in side squib (LH) circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
Page 1073 of 1943
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±509
2001 PRIUS (RM778U)DTC No.
(See Page)
Detection ItemTrouble AreaSRS
Warning Light
B0117/45
(DI±560)Short in side squib (LH) circuit
(to ground)Side airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0118/46
(DI±563)Short in side squib (LH) circuit
(to B+)Side airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0130/63
(DI±566)Short in P/T squib (RH) circuitSeat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0131/64
(DI±570)Open in P/T squib (RH) circuitSeat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0132/61
(DI±573)Short in P/T squib (RH) circuit
(to ground)Seat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0133/62
(DI±576)Short in P/T squib (RH) circuit
(to B+)Seat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0135/73
(DI±579)Short in P/T squib (LH) circuitSeat belt pretensioner LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0136/74
(DI±583)Open in P/T squib (LH) circuitSeat belt pretensioner LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0137/71
(DI±586)Short in P/T squib (LH) circuit
(to ground)Seat belt pretensioner LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0138/72
(DI±589)Short in P/T squib (LH) circuit
(to B+)Seat belt pretensioner LH (squib)
Airbag sensor assembly
Wire harness
Blink
B1100/31
(DI±592)Airbag sensor assembly malfunctionAirbag sensor assemblyON
B1135/24
(DI±594)Harf connection in airbag sensor
assembly connectorAirbag sensor assembly
Wire harnessBlink
B1140/32
(DI±597)Side airbag sensor assembly (RH)
malfunctionSide airbag sensor assembly (RH)
Airbag sensor assembly
Wire harness
Blink
B1141/33
(DI±605)Side airbag sensor assembly (LH)
malfunctionSide airbag sensor assembly (LH)
Airbag sensor assembly
Wire harness
Blink
B1156/B1157/
15
(DI±613)Front airbag sensor (RH) malfunctionFront airbag sensor (RH)
Airbag sensor assembly
Instrument panel wire harness
Engine room No. 2 wire harness
ON
B1158/B1159/
16
(DI±621)Front airbag sensor (LH) malfunctionFront airbag sensor (LH)
Airbag sensor assembly
Instrument panel wire harness
Engine room main wire harness
ON
NlSystem normal±OFFNormal
(DI±629)Voltage source dropBattery
Airbag sensor assemblyON
Page 1074 of 1943
DI±510
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
HINT:
When the SRS warning light remains lit up and the DTC is the normal code, this means a voltage source
drops.
This malfunction is not stored in memory by the airbag sensor assembly and if the power source volt-
age returns to normal, the SRS warning light will automatically go out.
When 2 or more codes are indicated, the codes will be displayed in numeral order starting from the
lowest numbered code.
If a code not listed on the chart is displayed, the airbag sensor assembly is faulty.
Page 1075 of 1943
DI6P1±07
H01357
A18
A17A19
287 8 9 10 16 17
18A B12 3 4 5 6
11 12 15 14 13
AABB
19 20 21 22 23 24 25 26 27 1 2 3 4 5 6
7 8 9 10 11 121 2 3 4 5 6
7 8 9 10 11 12 DI±512
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
TERMINALS OF ECU
No.SymbolTerminal Name
A±Electrical Connector Check Mechanism
B±Electrical Connector Check Mechanism
A18 ± 3LASRS Warning Light
A18 ± 5IG2Power Source
A18 ± 6ACCPower Source
A18 ± 9+SRFront Airbag Sensor (RH)
A18 ± 10P+Squib (Passenger)
A18 ± 11P±Squib (Passenger)
A18 ± 12SILDiagnosis
A18 ± 13D±Squib (Driver)
A18 ± 14D+Squib (Driver)
A18 ± 15+SLFront Airbag Sensor (LH)
A18 ± 19TcDiagnosis
A18 ± 20±SRFront Airbag Sensor (RH)
A18 ± 23GSW2ECM
A18 ± 26±SLFront Airbag Sensor (LH)
A18 ± 27E1Ground
A18 ± 28E2Ground
A17 ± 1PL±Squib (Seat Belt Pretensioner, LH)
A17 ± 2PL+Squib (Seat Belt Pretensioner, LH)
A17 ± 5SFL±Squib (Side, LH)
A17 ± 6SFL+Squib (Side, LH)
A17 ± 7VUPLSide Airbag Sensor (LH)
A17 ± 9ESLSide Airbag Sensor (LH)
A17 ± 10SSL+Side Airbag Sensor (LH)
Page 1076 of 1943
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±513
2001 PRIUS (RM778U)No.
SymbolTerminal Name
A17 ± 11LBE+Body ECU
A17 ± 12SSL±Side Airbag Sensor (LH)
A19 ± 1SFR+Squib (Side, RH)
A19 ± 2SFR±Squib (Side, RH)
A19 ± 5PR+Squib (Pretensioner, RH)
A19 ± 6PR±Squib (Pretensioner, RH)
A19 ± 7SSR±Side Airbag Sensor (RH)
A19 ± 9SSR+Side Airbag Sensor (RH)
A19 ± 10ESRSide Airbag Sensor (RH)
A19 ± 12VUPRSide Airbag Sensor (RH)
Page 1077 of 1943
DI6P3±06
H01451
Y±B
D+ A1814Airbag Sensor Assembly
13
A18
D± Y 1
2
Spiral
Cable D Squib
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±515
2001 PRIUS (RM778U)
CIRCUIT INSPECTION
DTC B0100/13 Short in D Squib Circuit
CIRCUIT DESCRIPTION
The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad.
It causes the airbag to deploy when the airbag deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS±2.
DTC B0100/13 is recorded when a short is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0100/13
Short circuit between D+ wire harness and D± wire har-
ness of squib
D squib malfunction
Spiral cable malfunction
Airbag sensor assembly malfunctionSteering wheel pad (D squib)
Spiral cable
Airbag sensor assembly
Wire harness
WIRING DIAGRAM
Page 1078 of 1943
H01001H02142H02193
D SquibSpiral
Cable
Airbag
Sensor
Assembly
D+
(±)(+) D±
DI±516
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI±629).
2 Check D squib circuit.
PREPARATION:
Release the airbag activation prevention mechanism of the
connector (on the airbag sensor assembly side) between the
airbag sensor assembly and the spiral cable (See page
DI±497).
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and the steering wheel pad, measure the resistance be-
tween D+ and D±.
OK:
Resistance: 1 MW or Higher
NG Go to step 5.
OK
Page 1079 of 1943
FI1390AB0119H01002
H10600
H10598
D SquibSpiral
Cable
Airbag
Sensor
Assembly
ON
DTC B0100/13
DLC3"u
Tc CG
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±517
2001 PRIUS (RM778U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Connect negative (±) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON and wait at least for 20 se-
conds.
(b) Clear the DTC stored in memory (See page DI±497).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(e) Check the DTC (See page DI±497).
OK:
DTC B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK
Page 1080 of 1943
AB0119FI1390
H01003
H10600H10599
D SquibSpiral
CableAirbag
Sensor
Assembly
ON
DTC B0100/13
DLC3
" u
Tc CG
DI±518
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
4 Check D squib.
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (±) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Connect the steering wheel pad connector.
(d) Connect negative (±) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(b) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(c) Clear the DTC stored in memory (See page DI±497).
(d) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(e) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(f) Check the DTC (See page DI±497).
OK:
DTC B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
they are not relevant to this check.
NG Replace steering wheel pad.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.