1995 TOYOTA SUPRA Service Repair Manual

Page 577 of 2543

TOYOTA SUPRA 1995  Service Repair Manual INSPECTION PROCEDURE
Check No.5 solenoid valve.
1. Jack up the vehicle.
2. Remove the oil pan.
Resistance:  3.6 Ð 4.0 
Check solenoid resistance
Check solenoid operation
Connect positive  lead with

Page 578 of 2543

TOYOTA SUPRA 1995  Service Repair Manual Repair or replace harness or connector.
Proceed to next circuit inspection shown on matrix
chart (See page AT2±64). However, when diagnostic
trouble code 77 is displayed, check and replace
ECM.
Check

Page 579 of 2543

TOYOTA SUPRA 1995  Service Repair Manual DTC 89 TRAC ECU Circuit
CIRCUIT DESCRIPTION
When the transmission is in the shift up or stall condition, the TRAC ECU sends a sub±throttle valve close
signal to the sub±throttle actuator.
 

Page 580 of 2543

TOYOTA SUPRA 1995  Service Repair Manual INSPECTION PROCEDURE
Repair or replace harness or connector.
If the same code is still output after the diagnostic trouble code is deleted, check the contact
condition of each connection.
If the conne

Page 581 of 2543

TOYOTA SUPRA 1995  Service Repair Manual Throttle Position Sensor Circuit
CIRCUIT DESCRIPTION
The throttle position sensor detects the throttle valve opening angle and sends signals to ECM.
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESH

Page 582 of 2543

TOYOTA SUPRA 1995  Service Repair Manual INSPECTION PROCEDURE
Check main throttle position signal.
Voltage changes from 0 V to 8 V by stages.
Turn ignition switch ON.
Do not depress the brake pedal during the test. The
voltage will stay at 0

Page 583 of 2543

TOYOTA SUPRA 1995  Service Repair Manual Kick±down Switch Circuit
The kick±down switch is turned on when the accelerator pedal
is depressed beyond the full throttle opening and sends signals
to ECM.
When the kick±down switch is turned on,

Page 584 of 2543

TOYOTA SUPRA 1995  Service Repair Manual Check voltage between terminal KD of ECM connector and body ground.
1. Connect  the Check Harness A to the ECM
(See page EG±510).
2. Turn ignition switch ON.
Measure voltage between terminal KD of EC