TOYOTA SUPRA 1986 Service Repair Manual

TOYOTA SUPRA 1986 Service Repair Manual SUPRA 1986 TOYOTA TOYOTA https://www.carmanualsonline.info/img/14/57467/w960_57467-0.png TOYOTA SUPRA 1986 Service Repair Manual
Trending: fuses, power steering, fuse box, heating, oil filter, checking oil, wheel bolt torque

Page 171 of 878

TOYOTA SUPRA 1986  Service Repair Manual Connect  SST (check harness ªAº).
See page EG±404)
SST 09990±01000
Measure voltage between terminal IGF of engine
control module connector and body ground when
engine is cranked.
Voltage:  0.5 Ð

Page 172 of 878

TOYOTA SUPRA 1986  Service Repair Manual Check ignition coil.
Disconnect ignition coil connector.
(1) Check primary coil.
Measure resistance between terminals of ignition coil
connector.
(2) Check secondary coil.
Measure resistance between t

Page 173 of 878

TOYOTA SUPRA 1986  Service Repair Manual Disconnect igniter connector and check voltage between terminal IGT of engine
control module connector and body ground.
Check for open and short in harness and connector in IGT signal circuit be-
twee

Page 174 of 878

TOYOTA SUPRA 1986  Service Repair Manual DTC 16 A T Control Signal Malfunction
CIRCUIT DESCRIPTION
The signal from the A/T CPU retards the ignition timing of the engine during A/T gear shifting, thus momentarily
reducing torque output of the

Page 175 of 878

TOYOTA SUPRA 1986  Service Repair Manual CIRCUIT DESCRIPTION
To obtain a high purification rate for the Co, Hc and NOx components of the exhaust gas, a three±way catalytic
converter is used, but for most efficient use of the three±way cata

Page 176 of 878

TOYOTA SUPRA 1986  Service Repair Manual CIRCUIT DESCRIPTION (Contd)
DIAGNOSTIC TROUBLE CODE DETECTION DRIVING PATTERN
Purpose  of the driving pattern.
(a) To simulate diagnostic trouble code detecting condition after diagnostic trouble cod

Page 177 of 878

TOYOTA SUPRA 1986  Service Repair Manual Replace oxygen sensor.
Go to relevant diagnostic trouble code chart.
Are there any other codes (besides code 21 or 28) being output?
WIRING DIAGRAM
INSPECTION PROCEDURE (Except California specificatio

Page 178 of 878

TOYOTA SUPRA 1986  Service Repair Manual INSPECTION PROCEDURE (Only for California specification vehicles)
HINT: If diagnostic trouble code º21º is output, check the main heated oxygen sensor (Fr) circuit.
If diagnostic trouble code º28º

Page 179 of 878

TOYOTA SUPRA 1986  Service Repair Manual Check voltage between terminals HT1, HT2 of engine control module
connector and body ground.
INSPECTION USING OSCILLOSCOPE
Replace main heated oxygen sensor.*
Check and replace engine control module.

Page 180 of 878

TOYOTA SUPRA 1986  Service Repair Manual DTC 22 Engine Coolant Temp. Sensor Circuit
CIRCUIT DESCRIPTION
The engine coolant temperature sensor senses the
coolant temperature. A thermistor built in the sensor
changes  its resistance value acco
Trending: transmission fluid, adding oil, fuse chart, engine, gas type, wipers, audio