1995 TOYOTA SUPRA ABS

AIR CONDITIONING UNIT
AIR CONDITIONING UNIT REMOVAL
1. DISCHARGE REFRIGERANT IN REFRIGERATION
SYSTEM
INSTALLATION HINT: Evacuate air from refrigeration sys-
tem.
Charge system with the refrigerant and inspect for leakage
of refrigerant.
Specified amount:
700 + 50 g (24.96 + 1.76 oz.)
2. DRAIN ENGINE COOLANT FROM RADIATOR AND
ENGINE COOLANT DRAIN COCK
3. REMOVE ENGINE WIRE HARNESS BRACKET
MOUNTING BOLT
4. REMOVE BRAKE TUBE BRACKET MOUNTING BOLTS
FROM DASH PANEL
5. REMOVE WATER HOSE FROM HEATER RADIATOR
6. REMOVE INSULATOR RETAINER
Remove the 2 bolts and the insulator retainer.
7. REMOVE LIQUID TUBE AND SUCTION TUBE
(a) w/ ABS:
Remove the ABS actuator.
(See page BR±44)
(b) Remove the liquid tube and suction tube.
Torque: 10 NVm (100 kgfVcm, 7 ftVlbf)
INSTALLATION HINT: Lubricate the new O±rings with com-
pressor oil and install tubes.
8. REMOVE PLATE COVER
Remove the 2 bolts and the plate cover.
9. REMOVE INSTRUMENT PANEL AND REINFORCEMENT
(See page BO±45) AC±80
± AIR CONDITIONING SYSTEMAIR CONDITIONING UNIT

EVAPORATOR
EVAPORATOR REMOVAL
1. DISCHARGE REFRIGERANT IN REFRIGERATION
SYSTEM
INSTALLATION HINT: Evacuate air from refrigeration sys-
tem.
Charge system with refrigerant and inspect for leakage of re-
frigerant.
2. REMOVE ABS ACTUATOR (w/ABS)
(See page BR±44)
3. REMOVE LIQUID TUBE AND SUCTION TUBE FROM A/C
UNIT
Torque: 10 NVm (100 kgfVcm, 7 ftVlbf)
INSTALLATION HINT: Lubricate the new O±rings with com-
pressor oil and install the tubes.
4. REMOVE GROVE BOX AND SIDE AIR DUCT
(a) Remove the glove box.
(See page BO±45)
(b) Remove the 5 screws and the brace.
(c) Remove the side air duct.
5. REMOVE SCUFF PLATE
(See page BO±44)
6. REMOVE FLOOR CARPET
7. REMOVE ECM
(a) Remove the 2 nuts and the ECM cover.
(b) Remove the 2 nuts and the ECM.
8. REMOVE EVAPORATOR
(a) Remove the 6 screws and the lower cover.
(b) Remove the 4 screws and the evaporator cover.
(c) Remove the evaporator.
INSTALLATION HINT: If evaporator was replaced, add com-
pressor oil to the compressor.
Add 40 cc (1.4 fl.oz.)
Compressor oil
ND±OIL 8 or equivalent
± AIR CONDITIONING SYSTEMEVAPORATORAC±95

INTRODUCTIONGLOSSARY OF SAE AND TOYOTA TERMS -
IN-8
IACIdle Air ControlIdle Speed Control (ISC)
IATIntake Air TemperatureIntake or Inlet Air Temperature
ICMIgnition Control Module-
IFIIndirect Fuel InjectionIndirect Injection
IFSInertia Fuel-Shutoff-
ISCIdle Speed Control-
KSKnock SensorKnock Sensor
MAFMass Air FlowAir Flow Meter
MAPManifold Absolute PressureManifold Pressure
Intake Vacuum
MCMixture Control
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDPManifold Differential Pressure-
MFIMultiport Fuel InjectionElectronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Light
MSTManifold Surface Temperature-
MVZManifold Vacuum Zone-
NVRAMNon-V olatile Random Access Memory-
O2SOxygen SensorOxygen Sensor, O2 Sensor (O2S)
OBDOn-Board DiagnosticOn-Board Diagnostic (OBD)
OCOxidation Catalytic ConverterOxidation Catalyst Converter (OC), CCo
OPOpen LoopOpen Loop
PAIRPulsed Secondary Air InjectionAir Suction (AS)
PCMPowertrain Control Module-
PNPPark/Neutral Position-
PROMProgrammable Read Only Memory-
PSPPower Steering Pressure-
PTOXPeriodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM)
RMRelay Module-
ROMRead Only MemoryRead Only Memory (ROM)
RPMEngine SpeedEngine Speed
SCSuperchargerSupercharger
SCBSupercharger Bypass-
SFISequential Multiport Fuel InjectionElectronic Fuel Injection (EFI), Sequential Injection
SPLSmoke Puff Limiter-
SRIService Reminder Indicator-
SRTSystem Readiness Test-
STScan Tool-
TBThrottle BodyThrottle Body
TBIThrottle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TCTurbochargerTurbocharger
TCCTorque Converter ClutchTorque Converter
TCMTransmission Control ModuleTransmission ECU (Electronic Control Unit)
TPThrottle PositionThrottle Position
TRTransmission Range-

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
AT-109
(g) Using a screwdriver, bend the tabs of the lock washer.
HINT: Bend at least 2 of the lock washer tabs.
47. INSTALL CONTROL SHAFT LEVER
Torque: 16 N´m (160 kgf´cm, 12 ft´lbf)

A340E(Others) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
AT-128
43. INSTALL UNION AND ELBOW
(a) Coat the new O-rings with ATF and install them to union
and elbow.
(b) Install the front union.
Torque: 29 N´m (300 kgf´cm, 22 ft´lbf)
(c) Install the rear union.
Torque: 29 N´m (300 kgf´cm, 22 ft´lbf)
44. SUPRA, T100
INSTALL A/T OIL TEMPERATURE SENSOR
(a) Coat new O-ring with ATF and install it to the oil tempera-
ture sensor.
(b) Install the sensor.
Torque: 29 N´m (300 kgf´cm, 22 ft´lbf)
45. INSTALL PARK/NEUTRAL POSITION SWITCH
(a) Install the park/neutral position switch onto the manual
valve lever shaft and temporarily tighten the adjusting
bolt.
(b) Install the grommet and a new lock washer. Install and
torque the nut.
Torque: 6.9 N´m (70 kgf´cm, 61 in.´lbf)
(c) Using the control shaft lever, fully turn the manual lever
shaft back and return 2 notches. It is now in neutral.
(d) Align the neutral basic line and the switch groove, and
tighten the adjusting bolt.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)
(e) Bend the tabs of the lock washer.
HINT: Bend at least 2 of the lock washer tabs.

INDICATOR LIGHTS
TroubleParts name (See page) 
 
 SRS Indicator Light does not light up
 
 
 
1. Bulb
2. Wire Harness
3. Center Air Bag Sensor (RS Section)
 
 
 
ABS Indicator Light does not light up
 
 
 
1. Bulb
2. Wire Harness
3. Traction ECU (BR Section)
 
 
 
Malfunction Indicator Light does not light up
 
 
 
1. Bulb
2. ECM (EG Section)
3. Wire Harness
 
 
 
TRAC OFF Indicator Light does not light up
 
 
 
1. Bulb
2. Traction Solenoid Relay (BR Section)
3. Traction ECU (BR Section)
4. Wire Harness
 
 
 
Security Indicator Light does not light up
 
 
 
1. Light Emitting Diode
2. Theft Deterrent and Door Lock ECU (BE±123)
3. Wire Harness
 
 
 
 
A/T Shift Position Indicator Light does not light up
 
 
 
 
1. Bulb
2. Park/Neutral Position Switch (AT1 Section)
3. Light Control Rheostat (BE±54)
4. Meter Circuit Plate (BE±44)
5. Wire Harness
 
 
 
 
MANU Indicator Light does not light up
 
 
 
 
1. Bulb
2. ECM (EG Section)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
 
O/D OFF Indicator Light does not light up
 
 
 
 
1. Bulb
2. O/D Main Switch
3. ECM (EG Section)
4. Meter Circuit Plate (BE±44)
5. Wire Harness
 
 
 
 
TRAC Indicator Light does not light up
 
 
 
 
1. Bulb
2. ABS and Traction ECU
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
Turn Indicator Light does not light up
 
 
 
1. Bulb
2. Turn Signal and Hazard Warning System (BE±20)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
 
High Beam Indicator Light does not light up
 
 
 
 
1. Bulb
2. Headlight System (BE±10)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
CRUISE Indicator Light does not light up
 
 
 
1. Bulb
2. Cruise Control ECU (BE±170)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
± BODY ELECTRICAL SYSTEMCOMBINATION METERBE±43

INSPECTION PROCEDURE
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
(1) Turn ignition switch ON.
(2) Measure voltage between terminal IDL of ECU
connector and body ground, when the throttle
valve is fully closed and fully opened.
Check voltage between terminal IDL of ECU connector and body ground.
Check throttle position sensor.
Measure resistance between terminals 1 and 2 of
throttle position sensor connector, when the throttle
valve is fully closed and fully opened.
(1) Remove cruise control ECU with connectors still
connected.
(2) Disconnect ECM and ABS & TRAC ECU
connector.
Disconnect throttle position sensor connector.
Throttle valve position
Fully opened
Fully closed
Voltage
Throttle valve position
Fully opened
Fully closed
Voltage
Repair or replace harness or connector.
Check and replace ECU.
Check for open and short in harness and connector between ECU and throttle
position sensor, throttle position sensor and body ground (See page
IN±30).
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEMBE±185

PREPARATION
SST (SPECIAL SERVICE TOOLS)
09023±00100
09709±29017
09718±20010
09737±00010
09751±36011
09843±18020
09990±00150
09990±00163
09990±00200
09990±00210
09990±00250
09990±00280
09990±00330
Union Nut Wrench 10 mm
LSPV Gauge Set
Brake Shoe Return Spring
Replacer
Brake Booster Push Rod Gauge
Brake Line Union Nut 10 x 12 mm
Wrench
Diagnosis Check Wire
ABS Actuator Checker and
Sub±harness
ABS Actuator Checker Sheet ªAº
ABS Actuator Checker Sub±harness
ªCº
ABS Actuator Checker Sub±harness
ªEº
ABS Actuator Checker Sub±harness
ªGº
ABS Actuator Checker Sub±harness
ªHº
TRAC Actuator Air Bleed Wire
w/o TRAC
w/ TRAC
w/ TRAC
w/ TRAC
± BRAKE SYSTEMPREPARATIONBR±3