1996 TOYOTA T100 engine

Downloaded from www.Manualslib.com manuals search engine − DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−361
1996 TOYOTA T100 (RM449U)
2 Check for open and short in harness and connector between ABS ECU and
DLC1, DLC1 and body ground (See page IN−26).
NG Repair or replace harness or connector.
OK
Check and replace ABS ECU.

Downloaded from www.Manualslib.com manuals search engine F00447
DI−362
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
1996 TOYOTA T100 (RM449U)
Check for fluid Leakage
Check for fluid leakage from actuator or hydraulic lines.
DI10Y−01

Downloaded from www.Manualslib.com manuals search engine DI0XG−01
Vehicle Brought to Workshop
Identification of Problem
Confirmation Test
END
Repair
Customer Ploblem Analysis
DI−364
DI−365
DI−369
DI−373 Warning Light Check
DTC Check and Recording
Malfunction Code Clearance
DTC Check and Recording
DTC Chart
Circuit Inspection
Malfunction Code Clearance
DTC Check
Step
,:
Diagnostic steps permitting
the use of the TOYOTA
hand−held tester.34
1
2
3
4
5
7
8
9
10
11
12
5,10,1112,,
Symptom Simulation
IN−16
Does Not Light Up
Normal Code
Normal CodeNormal
Code
Malfunction Code
Malfunction Code
6
Normal Code
DI−365
DI−365
DI−365
DI−365
DI−365
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−363
620 Author: Date:
1996 TOYOTA T100 (RM449U)
SUPPLEMENTAL RESTRAINT SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshooting in accordance with the procedure on the following pages.

Downloaded from www.Manualslib.com manuals search engine DI0XH−01
Supplemental Restraint System Check Sheet
Date Problem Dist Occurred
Customer ’s Name
Registration No.
Registration Year
Frame No.
Odometer Reading
Weather
Temperature
Vehicle Operation
Road Conditions
Details of Problem
Vehicle Inspection, Repair
History Prior to Occurrence of
Malfunction (Including
Supplemental 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−364
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TOYOTA T100 (RM449U)
CUSTOMER PROBLEM ANALYSIS CHECK

Downloaded from www.Manualslib.com manuals search engine R07710R07711H00318
w/ Tachometer
w/o Tachometer
DI0XJ−02
S08098
E1 Tc
AT0716
Normal Code
ON
OFF0.25
0.25
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−365
1996 TOYOTA T100 (RM449U)
PRE−CHECK
1. SRS WARNING LIGHT CHECK
(a) Turn the ignition switch to ACC or ON 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 ”SRS warning light system malfunction” on
page DI−398, DI−400.
2. DTC CHECK (Using diagnosis check wire)
(a) Output the DTC.
(1) Turn the ignition switch to ACC or ON position and
wait approx. 20 seconds.
(2) Using SST, connect terminals Tc and E1 of the
DLC1.
SST SST 09843−18020
NOTICE:
Never make a mistake with the terminal connection posi-
tion as this will cause a malfunction.
(b) 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 as shown on the illustra-
tion.
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.

Downloaded from www.Manualslib.com manuals search engine AB0056
Code 11 and 31
ON
OFF
0.5 2.54.0
1.5 0.5
Code 11Code 31Repeat
S07739
DI−366
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TOYOTA T100 (RM449U)
If there are 2 or more codes, there will be a 2.5 second pause
between each codes. After al 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 it does not output a DTC or outputs a DTC without termi-
nal connection, proceed to the Tc terminal circuit inspec-
tion on page DI−403.
3. DTC CHECK (Using TOYOTA hand−held tester)
(a) Hook up the TOYOTA hand−held tester to the DLC1.
(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 (Using diagnosis check wire)
(a) Conncect the 2 service wires to terminals Tc nad AB of
DLC1.
(b) Turn the ignition switch to ACC or ON and wait approx.
6 seconds.
(c) Starting with the Tc terminal, apply body ground alternate-
ly to terminal Tc and terminal AB twice each in cycles of
1.0 seconds. Confirm that body ground is absolute.
Finally, keep applying body ground to terminal Tc.
HINT:
When alternately groundling terminals Tc and AB, release
grounf from one terminal and immediately apply it to the other
terminal within an interval of 0.2 second. If DTCs do not clear,
repeat the above procedure until the codes are cleared.

Downloaded from www.Manualslib.com manuals search engine R07090
W05586 W05587
H00319
TerminalTime of Body ground
Tc
ABOFF
Body
Ground
OFF
Body
Ground
Several
seconds50 msec.
50 msec. OFF ON
1 second
(± 0.5 sec.)1 second
(± 0.5 sec.)”1””3” ”5”
”2” ”4”
w/ Tachometer w/o TachometerAB
Tc
S07739
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−367
1996 TOYOTA T100 (RM449U)
(d) Several seconds after doing the clearing procedure, the
SRS warning light will blink in a 50 msec. cycle to indicate
the codes have been cleared.
5. DTC CLEARANCE (Using TOYOTA hand−held tester)
(a) Hook up the TOYOTA hand−held tester to the DLC1.
(b) Clear 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.
6. RELEASE METHOD OF AIRBAG ACTIVATION PRE-
VENTION MECHANISM
An airbag activation prevention mechanism is built into the con-
nector for the squib circuit of the SRS.
When release of the airbag activation prevention mechanism is
directed in the troubleshooting procedure, as shown in the il-
lustration of the connectors ”1” and ”2” below, insert paper
which is the same thickness as the male terminal, between the
terminal and the short spring.

Downloaded from www.Manualslib.com manuals search engine W03146 W03147
AB0130 AB0045AB0046AB0027
H00320
Airbag Sensor Assembly Connector (Connector ”1”)
Spiral Cable Connector (Connector ”2”)
Short SpringShort Spring
Before Release
After Release After Release Before Release
PaperPaper
Center
Airbag
Sensor
AssemblyJ/B No.1
Squib
RH and LH Front Airbag Sensors Spiral Cable Connector ”1” Connector ”2”
DI−368
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TOYOTA T100 (RM449U)
CAUTION:
Never release the airbag activation prevention mechanism
on the steering wheel pad connector.
NOTICE:
Do not release the airbag activation prevention mech-
anism unless specifically directed by the trouble-
shooting procedure.
If the paper inserted is too thick the terminal and short
spring may be damaged, so always use paper the
same thickness as the male terminal.