1996 TOYOTA T100 check engine

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BRABS ECU
DLC1
Y−BY−B
EBIE1 A15
E1
3116
20
TcTc
AB0119S08097F00445
ON
E
1
Tc(−)
(+)
DI−358
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
1996 TOYOTA T100 (RM449U)
Tc Terminal Circuit
CIRCUIT DESCRIPTION
Connecting terminals Tc and E1 of the DLC1 causes the ECU to display the DTC by flashing the ABS warning
light.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Tc and E1 of DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals Tc and E
1 of DLC1.
OK:
Voltage: 10 − 14 V
OK If ABS warning light does not blink even after Tc
and E
1 are connected, ECU may be defective.
NG
DI10U−03

Downloaded from www.Manualslib.com manuals search engine − DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−359
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.

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BRABS ECU
DLC1
R−YR−Y
EBIE1 A15
E1
3161
6
TsTs
AB0119S08096F00446
ON
E
1
Ts(−)
(+)
DI−360
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
1996 TOYOTA T100 (RM449U)
Ts Terminal Circuit
CIRCUIT DESCRIPTION
The sensor check circuit detects abnormalities in the speed sensor signal which cannot be detected with
the DTC check.
Connecting terminals Ts and E
1 of the DLC1 in the engine compartment starts the check.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Ts and E1 of DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals Ts and E
1 of DLC1.
OK:
Voltage: 10 − 14 V
OK If ABS warning light does not blink even after Ts
and E
1 are connected, ECU may be defective.
NG
DI10W−03

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.

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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.