1996 TOYOTA T100 display

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DI−276
− DIAGNOSTICSAUTOMATIC TRANSMISSION
1996 TOYOTA T100 (RM449U)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit listed for that code in the table below and pro-
ceed to the page given.
*:  ... MIL lights up
DTC No.
(See Page)Detection ItemTrouble AreaMIL *Memory
P0500
3RZ−FE:
(DI−92)
5VZ−FE:
(DI−226)
Vehicle Speed Sensor
Malfunction
(No.1 Vehicle Speed Sensor)Open or short in No.1 vehicle speed sensor circuit
No.1 vehicle speed sensor
Combination meter
ECM

P0710
(DI−287)Transmission Fluid Temperature
Sensor Malfunction
(ATF Temperature Sensor)Open or short in ATF temperature sensor circuit
ATF temperature sensor
ECM

P0750
(DI−289)Shift Solenoid A Malfunction
(Shift Solenoid Valve No.1)Shift solenoid valve No.1 is stuck open or closed
Valve body is blocked up or stuck
P0753
(DI−290)Shift Solenoid A Electrical
Malfunction
(Shift Solenoid Valve No.1)Open or short in shift solenoid valve No.1 circuit
Shift solenoid valve No.1
ECM

P0755
(DI−289)Shift Solenoid B Malfunction
(Shift Solenoid Valve No.2)Shift solenoid valve No.2 is stuck open or closed
Valve body is blocked up or stuck
P0758
(DI−290)Shift Solenoid B Electrical
Malfunction
(Shift Solenoid Valve No.2)Open or short in shift solenoid valve No.2 circuit
Shift solenoid valve No.2
ECM

P0770
(DI−294)Shift Solenoid E Malfunction
(Shift Solenoid Valve SL)Shift solenoid valve SL is stuck open or closed
Valve body is blocked up or stuck
Lock−up clutch

P0773
(DI−296)Shift Solenoid E Electrical
Malfunction
(Shift Solenoid Valve SL)Open or short in shift solenoid valve SL circuit
Shift solenoid valve SL
ECM

P1700
(DI−300)Vehicle Speed Sensor No.2
Malfunction
(No.2 Vehicle Speed Sensor)Open or short in No.2 vehicle speed sensor circuit
No.2 vehicle speed sensor
ECM

P1780
(DI−306)Park/Neutral Position Switch
MalfunctionShort in park/neutral position switch circuit
Park/neutral position switch
ECM


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DI−282
− DIAGNOSTICSAUTOMATIC TRANSMISSION
1996 TOYOTA T100 (RM449U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the diagnostic trouble code check but the trouble still occurs, check the
circuits for each symptom in the order given in the charts on the following pages and proceed to the page
given for troubleshooting.
The Matrix Chart is divided into 3 chapters.
Chapter 1: Electronic Circuit Matrix Chart
Chapter 2: On−vehicle Repair Matrix Chart
Chapter 3: Off−vehicle Repair Matrix Chart
If the instruction ”Proceed to next circuit inspection shown on matrix chart” is given in the flow
chart for each circuit, proceed to the circuit with the next highest number in the table to continue
the check.
If the trouble still occurs even though there are no abnormalities in any of the other circuits, then
check and replace the ECM.
Chapter 1: Electronic Circuit Matrix Chart
SymptomSuspect AreaSee page
No up−shift
(A particular gear, from 1st to 3rd gear, is not up−shifted)1. ECMDI−279
No up−shift (3rd → O/D)
1. O/D main switch & O/D OFF indicator light circuit
2. O/D cancel signal circuit
3. ECMDI−311
DI−309
DI−279
No down−shift (O/D → 3rd)1. ECMDI−279
No down−shift
(A particular gear, from 1st to 3rd gear, is not up−shifted)1. ECMDI−279
No lock−up1. Stop light swich circuit
2. ECMDI−316
DI−279
No lock−up off1. Stop light swich circuit
2. ECMDI−316
DI−279
Shift point too high or too low1. ECMDI−279
Up−shift to O/D from 3rd while O/D main switch is OFF1. O/D main switch & O/D OFF indicator light circuit
2. ECMDI−311
DI−279
Up−shift to O/D from 3rd while engine is cold1. ECMDI−279
No kick−down1. ECMDI−279
Engine stalls when starting off or stopping1. Stop light swich circuit
2. ECMDI−316
DI−279

Downloaded from www.Manualslib.com manuals search engine R12019
DI0ZM−03
A00778DLC1 E
1Tc
F00006
DLC1Short Pin
R01346
Normal Code
0.25 sec.
0.25 sec. 2 sec.
ON
OFF
ON
OFF0.5 sec.0.5 sec.
Code 11 and 21
4 sec.1.5 sec.
2.5 sec.
Code 11 Code 21
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−321
1996 TOYOTA T100 (RM449U)
PRE−CHECK
1. DIAGNOSIS SYSTEM
(a) Check the indicator light.
When the ignition switch is turned ON, check that the ABS
warning light goes on for 3 seconds.
HINT:
If the indicator check result is not normal, proceed to trouble-
shooting for the ABS warning light circuit (See page DI−354).
(b) Check the DTC.
(1) Using SST, connect terminals Tc and E
1 of the
DLC1.
SST 09843−18020
(2) Disconnect the short pin from the DLC1.
(3) Turn the ignition switch ON.
(4) Read the DTC from the ABS warning light on the
combination meter.
HINT:
If no code appears, inspect the diagnostic circuit or ABS
warning light circuit (See page DI−354 or DI−358).
As an example, the blinking patterns for normal code and
codes 11 and 21 are shown on the left.
(5) Code are explained in the code table on page
DI−326.
(6) After completing the check, disconnect terminals Tc
and E
1, and turn off the display.
If 2 or more malfunctions are indicated at the same time the low-
est numbered DTC will be displayed 1st.

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0.13 sec. 0.13 sec.
ON
OFF
BR3893
Malfunction Code (Example Code 72, 76)
7
26
7
ON
OFF
0.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.1.5 sec. 2.5 sec.4 sec.
Repeat
A00778DLC1 E
1
Ts
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−323
1996 TOYOTA T100 (RM449U)
(4) Check that the ABS warning light blinks.
HINT:
If the ABS warning light does not blink, inspect the ABS warning
light circuit (See page DI−354).
(5) Drive vehicle straight forward.
HINT:
Drive vehicle faster than 45 km/h (28 mph) for several seconds.
(6) Stop the vehicle.
(7) Using SST, connect terminals Tc and E
1 of the
DLC1.
SST 09843−18020
(8) Read the number of blinks of the ABS warning light.
HINT:
See the list of DTC on page DI−326.
If every sensor is normal, a normal code is output (A cycle
of 0.25 sec. ON and 0.25 sec. OFF is repeated).
If 2 or more malfunction are indicated at the same time,
the lowest numbered code will be displayed 1st.
(9) After doing the check, disconnect terminals Ts and
E
1, Tc and E1 of the DLC1, and ignition switch
turned OFF.
(b) Check the deceleration sensor detection point.
(1) Turn the ignition switch OFF.
(2) Using SST, connect terminals Ts and E
1 of the
DLC1.
SST 09843−18020
(3) Start the engine.

Downloaded from www.Manualslib.com manuals search engine DI0ZQ−03
DI−326
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
1996 TOYOTA T100 (RM449U)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Using SST 09843−18020, connect terminals Tc and E
1, and remove the short pin.
If a malfunction code is displayed during the DTC check, check the circuit listed that the code. For details
of each code, turn to the page referred to under the ”See Page” for respective ”DTC No.” in the DTC chart.
DTC No.
(See Page)Detection ItemTrouble Area
11
(DI−332)Open circuit in ABS control (solenoid) relay circuit
ABS control (solenoid) relay
Open or short in ABS control (solenoid) relay circuit
ECU
12
(DI−332)Short circuit in ABS control (solenoid) relay circuit
ABS control (solenoid) relay
B+ short in ABS control (solenoid) relay circuit
ECU
13
(DI−335)Open circuit in ABS control (motor) relay circuit
ABS control (motor) relay
Open or short in ABS control (motor) relay circuit
ECU
14
(DI−335)Short circuit in ABS control (motor) relay circuit
ABS control (motor) relay
B+ short in ABS control (motor) relay circuit
ECU
21
(DI−338)Open or short circuit in 2−position solenoid circuit for right front
wheelABS actuator
Open or short in SFRR or SFRH circuit
ECU
22
(DI−338)Open or short circuit in 2−position solenoid circuit for left front
wheelABS actuator
Open or short in SFLR or SFLH circuit
ECU
23
(DI−338)Open or short circuit in 2−position solenoid circuit for rear
wheelABS actuator
Open or short in SRR or SRH circuit
ECU
31
(DI−341)Right front wheel speed sensor signal malfunction
Right front, left front, right rear and left rear speed sensor
Open or short in each speed sensor circuit
ECU
32
(DI−341)Left front wheel speed sensor signal malfunction
33
(DI−341)Right rear wheel speed sensor signal malfunction
34
(DI−341)Left rear wheel speed sensor signal malfunction
35
(DI−341)Open circuit in left front or right rear wheel speed sensor.
36
(DI−341)Open circuit in right front or left rear wheel speed sensor.
37
(DI−345)Neither front speed sensor rotor missing
Front axle hub
Right front, left front speed sensor
Wire harness for sensor system
ECU
37
(DI−346)Some tire is different size from the other tiresTire size
ECU
41
(DI−347)Low battery positive voltage or abnormally high battery
positive voltage
Battery
IC regulator
Open or short in power source circuit
ECU

Downloaded from www.Manualslib.com manuals search engine DI0ZZ−03
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−331
1996 TOYOTA T100 (RM449U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
SymptomsInspection CircuitSee page
ABS does not operate.
Only when 1. − 4. are all normal and the problem is still occurring, replace the
ABS ECU.
1. Check the DTC reconfirming that the normal code is output.
2. IG power source circuit.
3. Speed sensor circuit.
4. Check the ABS actuator with a checker.
If abnormal, check the hydraulic circuit for leakage (See page DI−xx).
DI−321
DI−347
DI−341
BR−58
ABS does not operate
efficiently.
Only when 1. − 4. are all normal and the problem is still occurring, replace the
ABS ECU.
1. Check the DTC reconfirming that the normal code is output.
2. Speed sensor circuit.
3. Stop light switch circuit.
4. Check the ABS actuator with a checker.
If abnormal, check the hydraulic circuit for leakage (See page DI−362).
DI−321
DI−341
BR−58
ABS warning light
abnormal.1. ABS warning light circuit.
2. ABS ECU.DI−354
DTC check cannot be done.
Only when 1. and 2. are all normal and the problem is still occurring, replace the
ABS ECU.
1. ABS warning light circuit.
2. Tc terminal circuit.
DI−354
DI−358
Speed sensor signal check
cannot be done.1. Ts terminal circuit.
2. ABS ECU.DI−360

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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

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− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−369
1996 TOYOTA T100 (RM449U)
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
Normal
(DI−396)System normal−OFF
Source voltage dropBattery
Center airbag sensor assemblyON
11
(DI−373)
Short in squib circuit or front airbag
sensor circuit (to ground)Steering wheel pad (D squib)
Front airbag sensor
Spiral cable
Center airbag sensor assembly
Wire harness
ON
12
(DI−379)
Short in squib circuit or front airbag
sensor circuit (to B+)Steering wheel pad (D squib)
Front airbag sensor
Spiral cable
Center airbag sensor assembly
Wire harness
ON
14
(DI−385)
Open in D squib circuitSteering wheel pad (D squib)
Spiral cable
Center airbag sensor assembly
Wire harness
ON
15
(DI−390)Open in front airbag sensor circuitFront airbag sensor
Center airbag sensor assembly
Wire harness
ON
31
(DI−394)
Center airbag sensor assembly
malfunctionCenter airbag sensor assembly
ON
HINT:
When the SRS warning light remains lit up and the DTC is the normal code, this means a source voltage
drop. This malfunction is not stored in memory by the center airbag sensor assembly and if the power
source voltage returns to normal, approx. 10 seconds the SRS warning light will automatically go out.
When 2 or more codes are indicated, the lowest numbered code will apper first.
If a code not listed on the chart is displayed, the center airbag sensor assembly is faulty.