Page 1833 of 4592
F00120
DLC2
ECII3
ADLC1 6
12
Tc
BJ3
J22J/C
II3A15 IK2 J8
11 J7 E
1
C
BRA
ABR BRBRJ/C
BR
TcTc
E
1LG±RJ/C
BB B LG±R LG±RLG±RABS & TRAC ECU
9
34
113
DLC2
ECII3
ADLC1 6
12
Tc
BJ3
J22J/CLG±R
*1
II3A15 IK2 J8
11 J7 E
1
C
BRA
ABR BRBRJ/C
BR
TcTc
E
1LG±RJ/C
BB B LG±R LG±RLG±RABS & TRAC ECU
9
34
113
P±B*2
*1:
TMC Made*2: TMMK Made
F02607 F00445F02612
DLC2
DLC1
Tc E
1
Tc E
1
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±621
856 Author: Date:
Tc Terminal Circuit
CIRCUIT DESCRIPTION
Connecting between terminals Tc and E1 of the DLC1 or the DLC2 causes the ECU to display the DTC by
blinking the ABS warning light and TRAC OFF indicator light.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Tc and E1 of DLC2 or DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals Tc and E
1 of DLC2 or
DLC1.
OK:
Voltage: 10 ± 14 V
OK If ABS warning light does not blink even after Tc
and E
1 are connected, the ECU may be defec-
tive.
NG
DI4KY±01
Page 1836 of 4592
DI1AX±04
Vehicle Brought to Workshop
Customer Problem Analysis
Warning Light Check
DTC Check
DTC Chart
DI±633
Circuit Inspection
Remains ON
Normal and Malfunction Code
Symptom Simulation
DTC Check
Identification of Problem
Warning Light Check
Confirmation Test
Warning Light ON
Warning Light Remains OFF
END
Normal
Normal
1
2
3
4
7
Repair
85
6
Step,:Diagnostic steps permitting the use
of the TOYOTA hand±held tester.3
6 DI±625
DI±626IN±21
DI±640 DI±626
DI±626
DI±626 DI±624
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
859 Author: Date:
SUPPLEMENTAL RESTRAINT SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
Page 1837 of 4592
DI15Z±07
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, Repair Histo-
ry Prior to Occurrence of Mal-
function (Including Supplemen-
tal 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 Light Up Does Not Light Up
Remains ON Sometimes Light Up
Does Not Light Up
Normal Code Malfunction Code
Normal Code Malfunction Code[ Code. ]
[ Code. ]km
Miles //
//
// Date Vehicle Brought In
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±625
860 Author: Date:
CUSTOMER PROBLEM ANALYSIS CHECK
Page 1838 of 4592
DI4L1±01
H02309
R13006
DLC1
E1 Tc
DI±626
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
861 Author: Date:
PRE±CHECK
1. SRS WARNING LIGHT CHECK
(a) Turn the ignition switch to the ACC or ON position and
check that the SRS warning light lights up.
(b) Check that the SRS warning light goes out after approx.
6 seconds.
HINT:
When the ignition switch is at ACC or ON and the SRS
warning light remains on or flashes, the airbag sensor as-
sembly has detected a malfunction code.
If, after approx. 6 seconds have elapsed, the SRS warn-
ing light sometimes lights up or the SRS warning light
lights up even when the ignition switch is OFF, a short in
the SRS warning light circuit can be considered likely.
Proceed to ºSRS warning light circuit malfunctionº on
page DI±790, DI±792.
2. DTC CHECK (Using diagnosis check wire)
(a) Present troubles codes:
Output the DTC.
(1) Turn the ignition switch to the ACC or ON position
and wait for approx. 20 seconds.
(2) Using SST, connect terminals Tc and E1 of the
DLC1.
SST 09843±18020
NOTICE:
Pay due attention to the terminal connecting position to
avoid a malfunction.
(b) Past troubles codes:
Output the DTC.
(1) Using service wire, connect Terminals Tc and E1 of
the DLC1.
SST 09843±18020
(2) Turn the ignition switch to the ACC or ON position
and wait for approx. 20 seconds.
NOTICE:
Pay due attention to the terminal connecting position to
avoid a malfunction.
Page 1839 of 4592
AT0716AB0056H08231
Normal Code
ON
OFF0.25
0.25
Code 11 and 31
ON
OFF
0.5 2.54.0
1.5 0.5
DTC 11
DTC 31Repeat
H08398S05331H08323
TOYOTA Hand±Held Tester
DLC1
DLC3
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±627
862 Author: Date:
(c) Read the DTC.
Read the 2±digit DTC as indicated by the number of times
the SRS warning light blinks. As an example, the blinking
patterns, normal, 11 and 31 are shown in the illustration.
Normal code indication
The light will blink 2 times per second.
Malfunction code indication
The first blinking output indicates the first digit
of a 2±digit DTC. After a 1.5±second pause,
the second blinking output will indicate the
second digit.
If there are 2 or more codes, there will be a 2.5±second pause
between each code. After all the codes have been output, there
will be a 4.0±second pause and they will all be repeated.
HINT:
In the event of a number of trouble codes, indication will
start from the smallest numbered code.
If a DTC is not output or a DTC is output without terminal
connection, proceed to the Tc terminal circuit inspection
on page DI±796.
3. DTC CHECK (Using TOYOTA hand±held tester)
(a) Hook up the TOYOTA hand±held tester to the DLC1 or
the DLC3.
(b) Read the DTCs by following the prompts on the tester
screen.
HINT:
Please refer to the TOYOTA hand±held tester operator's manu-
al for further details.
4. DTC CLEARANCE (Not using service wire)
When the ignition switch is turned off, the diagnostic trouble
code is cleared.
HINT:
DTC might not be cleared by turning the ignition switch OFF.
In this case, proceed to the next step.
5. DTC CLEARANCE (Using service wire)
(a) Connect the 2 service wires to terminals Tc and AB of
DLC1.
(b) Turn the ignition switch to ACC or ON and wait for approx.
6 seconds.
Page 1840 of 4592
H01461
H02309
H02271
ABTerminal
Tc
ABOFF
Body
Ground
OFF
ON
OFF
Several
Seconds50 m sec.
50 m sec.
1 seconds
(± 0.5 sec.)
Tc
Body
Ground
1 seconds
(± 0.5 sec.)
1
23
45
DI±628
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
863 Author: Date:
(c) Starting with the Tc terminal, ground alternately terminal
Tc and terminal AB twice each in cycles of 1.0 seconds.
Make sure that the terminals are grounded. Ensure the
terminal Tc remain grounded.
HINT:
When alternately grounding terminals Tc and AB, release
ground from one terminal and immediately ground the other ter-
minal within an interval of 0.2 seconds.
If DTCs are not cleared, repeat the above procedure until the
codes are cleared.
(d) Several seconds after doing the clearing procedure, the
SRS warning light will blink in a 50 m sec. cycle to indicate
the codes which have been cleared.
6. Past troubles codes:
DTC CLEARANCE
(See step 5.)
Page 1845 of 4592
DI1AZ±04
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±633
868 Author: Date:
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±640)
Short in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0101/14
(DI±645)
Open in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0102/11
(DI±649)
Short in D squib circuit (to Ground)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0103/12
(DI±653)
Short in D squib circuit (to B+)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0105/53
(DI±657)Short in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0106/54
(DI±661)Open in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0107/51
(DI±664)Short in P squib circuit (to Ground)Front passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0108/52
(DI±667)Short in P squib circuit (to B+)Front passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
TMC made:
B0110/43
(DI±670)Short in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0110/43
(DI±674)Short in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0111/44
(DI±679)Open in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0111/44
(DI±682)Open in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0112/41
(DI±686)Short in side squib (RH) circuit
(to Ground)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
Page 1846 of 4592
DI±634
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
869 Author: Date:
DTC No.
(See Page)Detection ItemTrouble AreaSRS
Warning Light
TMMK made:
B0112/41
(DI±689)Short in side squib (RH) circuit
(to Ground)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0113/42
(DI±693)Short in side squib (RH) circuit
(to B+)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0113/42
(DI±696)Short in side squib (RH) circuit
(to B+)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0115/47
(DI±700)Short in side squib (LH) circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0115/47
(DI±704)Short in side squib (LH) circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0116/48
(DI±709)Open in side squib (LH) circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0116/48
(DI±712)Open in side squib (LH) circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0117/45
(DI±716)Short in side squib (LH) circuit
(to Ground)Side airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0117/45
(DI±719)Short in side squib (LH) circuit
(to Ground)Side airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0118/46
(DI±723)Short in side squib (LH) circuit
(to B+)Side airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0118/46
(DI±726)Short in side squib (LH) circuit
(to B+)Side airbag assembly LH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
B0130/63
(DI±730)Short in P/T squib (RH) circuitSeat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0131/64
(DI±734)Open in P/T squib (RH) circuitSeat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0132/61
(DI±737)Short in P/T squib (RH) circuit
(to Ground)Seat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
B0133/62
(DI±740)Short in P/T squib (RH) circuit
(to B+)Seat belt pretensioner RH (squib)
Airbag sensor assembly
Wire harness
Blink
