Page 1218 of 1897
H08325AB0119H11969H13045
P/T Squib (LH)
Side Airbag
Sensor (LH)
Side Squib (LH)P Squib
D Squib
Spiral
Cable
Front Airbag
Sensor (RH) Front Airbag
Sensor (LH)
P/T Squib (RH)
Side Squib (RH)Side Airbag
Sensor (RH)
ONAirbag
Sensor
Assembly
DI-482
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
638 Author: Date:
2001 AVALON (RM808U)
4 Does SRS warning light come on?
PREPARATION:
(a) Disconnect negative (-) terminal cable from the battery.
(b) Connect the airbag sensor assembly connector.
(c) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
(d) Turn the ignition switch to ACC or ON.
CHECK:
Check operation of the SRS warning light.
NO Check terminal LA of airbag sensor assembly.
If normal, replace airbag sensor assembly.
YES
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use simulation method to check.
Page 1219 of 1897
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-483
639 Author: Date:
2001 AVALON (RM808U)
5 Is new ECU-B fuse burnt out again?
NO Using simulation method, reproduce malfunc-
tion symptoms (See page IN-20).
YES
Check harness between ECU- B fuse and
SRS warning light.
Page 1220 of 1897
H12005
Airbag Sensor Assembly
Tc
C6
E1
W-B19
P-B 56
1F 1IDriver Side J/B
LG-R
11 3A
3G3B 413
4
J/B No. 3LG-R 4Tc DLC2
LG-R
J/B No. 4
66
4A
4HLG-R
II2 22
LG-R
DLC1
EB
3Tc DI-484
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
640 Author: Date:
2001 AVALON (RM808U)
Tc Terminal Circuit
CIRCUIT DESCRIPTION
By connecting terminals Tc and E1 of the DLC1 the airbag sensor assembly is set in the DTC output mode.
The DTCs are displayed by blinking the SRS warning light.
WIRING DIAGRAM
DI1BQ-18
Page 1221 of 1897
AB0117AB0118AB0119H11969H13046
LOCK ACC
ON
or
AB0118
R14305AB0119
H00030
ACCON
or
E1
Tc
(+) (-)
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-485
641 Author: Date:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
If the DTC is not displayed, do the following troubleshooting.
1 Does SRS warning light light up for approx. 6 seconds?
PREPARATION:
Check operation of the SRS warning light after ignition switch
is turned from LOCK position to ACC or ON position.
NO Check SRS warning light system (See page
DI-479).
YES
2 Check voltage between terminals Tc and E1 of DLC1.
PREPARATION:
Turn the ignition switch to ACC or ON.
CHECK:
Measure the voltage between terminals Tc and E1 of DLC1.
OK:
Voltage: 10 - 14 V
OK Go to step 4.
NG
Page 1222 of 1897
AB0118
R14304AB0119
H00031
ACCON
orTc
(+)
(-)
AB0117 AB0118 AB0119H01302H01303
LOCK
ACCON
or
Airbag Sensor Assembly
Tc
DI-486
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
642 Author: Date:
2001 AVALON (RM808U)
3 Check voltage between terminal Tc of DLC1 and body ground.
CHECK:
Measure the voltage between terminal Tc of DLC1 and body
ground.
OK:
Voltage: 10 - 14 V
OK Check harness between terminal E1 of DLC1
and body ground.
NG
4 Check airbag sensor assembly.
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Disconnect the airbag sensor assembly connector.
(d) Insert service wire into terminal Tc from back side as
shown in the illustration.
(e) Connect the airbag sensor assembly connector with ser-
vice wire.
(f) Connect negative (-) terminal cable to the battery.
(g) Turn the ignition switch to ACC or ON and wait at least for
20 seconds.
(h) Connect service wire of terminal Tc to body ground.
CHECK:
Check operation of the SRS warning light.
OK:
SRS waning light comes on.
NOTICE:
Pay due attention to the terminal connecting position to
avoid a malfunction.
OK Check harness between the airbag sensor as-
sembly and DLC1.
NG
Replace airbag sensor assembly.
Page 1224 of 1897
DI15Z-10
Supplemental Restraint System Check Sheet
Date Problem Occurred
Customer 's Name
Registration No.
Registration Year
Frame No.
Odometer Reading
Weather
Temperature
Vehicle Operation
Road Conditions
Details Of Problem
Vehicle Inspection and Repair
History Prior to Occurrence of
Malfunction (Including Supple-
mental Restraint System)
Diagnosis System Inspection
SRS Warning Light
Inspection
DTC Inspection1st Time
2nd Time
1st Time
2nd TimeInspector 's
Name
Fine Cloudy Rainy Snowy Other
Approx.
Starting Idling
Driving [ Constant speed Acceleration Deceleration
Other ]
Remains ON Sometimes Lights Up Does Not Light Up
Remains ON Sometimes Lights Up
Does Not Light Up
Normal Code Malfunction Code
Normal Code Malfunction Code[ Code. ]
[ Code. ]km
Miles //
//
// Date Vehicle Brought In
DI-348
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
504 Author: Date:
2001 AVALON (RM808U)
CUSTOMER PROBLEM ANALYSIS CHECK
Page 1225 of 1897
DI161-31
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-355
511 Author: Date:
2001 AVALON (RM808U)
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-362)
Short in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0101/14
(DI-367)
Open in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0102/11
(DI-371)
Short in D squib circuit (to ground)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0103/12
(DI-375)
Short in D squib circuit (to B+)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0105/53
(DI-379)Short in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0106/54
(DI-383)Open in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0107/51
(DI-386)Short in P squib circuit (to ground)Front passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0108/52
(DI-389)Short in P squib circuit (to B+)Front passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0110/43
(DI-392)Short in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0111/44
(DI-396)Open in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0112/41
(DI-402)Short in side squib (RH) circuit
(to ground)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0113/42
(DI-402)Short in side squib (RH) circuit
(to B+)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0115/47
(DI-405)Short in side squib (LH) circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0116/48
(DI-409)Open in side squib (LH) circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
Page 1226 of 1897
DI-356
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
512 Author: Date:
2001 AVALON (RM808U)DTC No.
(See Page)
Detection ItemTrouble AreaSRS
Warning Light
B0117/45
(DI-412)Short in side squib (LH) circuit
(to ground)Side airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0118/46
(DI-415)Short in side squib (LH) circuit
(to B+)Side airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0130/63
(DI-418)Short in P/T squib (RH) circuitSeat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0131/64
(DI-422)Open in P/T squib (RH) circuitSeat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0132/61
(DI-425)Short in P/T squib (RH) circuit
(to ground)Seat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0133/62
(DI-428)Short in P/T squib (RH) circuit
(to B+)Seat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0135/73
(DI-431)Short in P/T squib (LH) circuitSeat belt pretensioner LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0136/74
(DI-435)Open in P/T squib (LH) circuitSeat belt pretensioner LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0137/71
(DI-438)Short in P/T squib (LH) circuit
(to ground)Seat belt pretensioner LH (squib)
Airbag sensor assembly
Wire harness
Blink
B0138/72
(DI-441)Short in P/T squib (LH) circuit
(to B+)Seat belt pretensioner LH (squib)
Airbag sensor assembly
Wire harness
Blink
B1100/31
(DI-444)Airbag sensor assembly malfunctionAirbag sensor assemblyON
B1140/32
(DI-446)Side airbag sensor assembly (RH)
malfunctionSide airbag sensor assembly (RH)
Airbag sensor assembly
Wire harness
Blink
B1141/33
(DI-454)Side airbag sensor assembly (LH)
malfunctionSide airbag sensor assembly (LH)
Airbag sensor assembly
Wire harness
Blink
B1156/B1157/
15
(DI-462)Front airbag sensor (RH) malfunctionFront airbag sensor (RH)
Airbag sensor assembly
Wire harness
ON
B1158/B1159/
16
(DI-467)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-475)Voltage source dropBattery
Airbag sensor assemblyON
