clutch 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 engine for smooth clutch operation inside the transmission and reduced shift
shock.
 
 DTC No.
 
 Diagnostic Trouble Code Detecting Condition
 
 Trouble Area
 
 16
 
 
Fault in communications between the engine
CPU and A/T CPU in the ECM 
 
ECM
If the ECM detects the diagnostic trouble code º16º in memory, it prohibits the torque control of the A/T which
performs smooth gear shifting.
INSPECTION PROCEDURE
Are there any other codes (besides Code 16) being output?
Go to relevant diagnostic trouble code chart.
Replace engine control module.
EG±524± ENGINE2JZ±GTE ENGINE TROUBLESHOOTING

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 engine for smooth clutch operation inside the transmission and reduced shift
shock.
 DTC No. Diagnostic Trouble Code Detecting Condition Trouble Area 
16
 
Fault in communications between the engine CPU
 

ECM 16 Fault in communications between the engine CPU
and A/T CPU in the ECM 
ECM
If the ECM detects the diagnostic trouble code º16º in memory, it prohibits the torque control of the A/T which
performs smooth gear shifting.
INSPECTION PROCEDURE
Are there any otheer codes (besides Code 16) being output?
Repair engine control module.
Go to relevant diagnostic trouble code chart.
EG±418± ENGINE2JZ±GE ENGINE TROUBLESHOOTING

ENGINE MECHANICAL
PREPARATION
SST (SPECIAL SERVICE TOOLS)
09201±10000 Valve Guide Bushing Remover &
Replacer Set
(09201±01060) Valve Guide Bushing Remover &
Replacer 6
09202±70010 Valve Spring Compressor
09213±70010 Crankshaft Pulley Holding Tool
09222±30010Connecting Rod Bushing Remover
& Replacer
09223±15030 Oil Seal & Bearing ReplacerCrankshaft rear oil seal
09248±55040 Valve Clearance Adjust Tool Set
(09248±05410) Valve Lifter Press
(09248±05420) Valve Lifter Stopper
09301±00110 Clutch Guide Tool2JZ±GE M/T
09316±60010 Transmission & Transfer Bearing
Replacer
(09316±00010) Replacer PipeCrankshaft front oil seal
Camshaft oil seal
± ENGINEENGINE MECHANICALEG±3

(c) Remove the 4 bolts holding the lever boot to the transmission
cover.
(d) Remove the shift and select lever boots.
(e) Remove the 4 bolts holding the shift lever to the shift lever
retainer.
21. M/T:
DISCONNECT CLUTCH RELEASE CYLINDER AND
GROUND STRAP FROM TRANSMISSION
(a) Remove the 2 bolts and clutch release cylinder.
(b) Remove the bolt, and disconnect the ground strap.
22. REMOVE NO.2 EXHAUST PIPE
(a) Remove the 2 bolts and nuts holding the No.2 front exhaust
pipe to the front exhaust pipe.
(b) Remove the 2 bolts and pipe support bracket.
(c) Remove the gasket, and disconnect the front exhaust pipe.
(d) Remove the 4 nuts, No.2 front exhaust pipe and 2 gaskets.
23. REMOVE EXHAUST PIPE HEAT INSULATOR
24. REMOVE PROPELLER SHAFT
(See propeller shaft removal in Propeller Shaft)
± ENGINEENGINE MECHANICALEG±83

(c) Remove the 4 bolts holding the lever boot to the transmission
cover.
(d) Remove the shift & select lever boots.
(e) Remove the 4 bolts holding the shift lever to the shift lever
retainer.
22. M/T:
DISCONNECT CLUTCH RELEASE CYLINDER AND
GROUND STRAP FROM TRANSMISSION
(a) Remove the 2 bolts, and disconnect clutch release cylinder.
(b) Remove the bolt, and disconnect the clutch line tube.
(c) Remove the bolt, and disconnect ground strap.
23. DISCONNECT SUB HEATED OXYGEN SENSOR FROM
FRONT EXHAUST PIPE
Remove the 2 nuts and sensor cover, and disconnect oxygen
sensor and gasket.
24. REMOVE EXHAUST PIPE ASSEMBLY
(a) Remove the 2 bolts and nuts holding the front exhaust pipe
to the No.2 front exhaust pipe.
(b) Remove the 2 bolts and pipe support bracket.
(c) Remove the gasket, and disconnect the front exhaust pipe. EG±90
± ENGINEENGINE MECHANICAL

6. 2JZ±GTE M/T:
REMOVE CLUTCH COVER SET BOLTS
(a) Remove the 2 bolts and service hole cover.
(b) Place the matchmarks on the flywheel and clutch cover.
(c) Remove the 6 bolts.
7. A/T:
REMOVE TORQUE CONVERTER CLUTCH MOUNTING
BOLTS
(a) Remove the hole plug.
(b) Turn the crankshaft to gain access to each bolt.
Remove the 6 bolts.
8. SEPARATE ENGINE AND TRANSMISSION
Remove the 6 bolts and transmission.
HINT: The º17º is 17 mm head bolt, and º14º is 14 mm head
bolt.
9. 2JZ±GE M/T:
REMOVE CLUTCH COVER AND DISC
(a) Place matchmarks on the flywheel and clutch cover.
(b) Loosen each bolt one turn at a time until spring tension is
released.
(c) Remove the bolts, and pull off the clutch cover with the clutch
disc.
NOTICE: Do not drop the clutch disc.
± ENGINEENGINE MECHANICALEG±95

ENGINE & TRANSMISSION ASSEMBLY
1. A/T:
CHECK TORQUE CONVERTER CLUTCH INSTALLATION
Using calipers and straight edge, measure from the installed
surface of the torque converter clutch to the front surface of
the transmission.
Correct distance:
Less than 0.1 mm (0.004 in.)
If the distance is not as specified, check for an improper
installation.
2. 2JZ±GE M/T:
INSTALL CLUTCH DISC AND COVER
(a) Insert SST in the clutch disc, and then set them and the cover
in position.
SST 09301±00110
(b) Align the matchmarks on the clutch cover and flywheel.
(c) Tighten the bolts evenly and gradually while pushing SST.
Make several passes around the cover until it is snug.
SST 09301±00110
(d) Torque the bolts on the clutch cover in the order shown.
Torque: 19 NVm (195 kgfVcm, 14 ftVlbf)
3. ASSEMBLE ENGINE AND TRANSMISSION
(a) M/T:
Align the input spline with the clutch disc and install the trans-
mission to the engine.
(b) Align the 2 knock pins on the cylinder block with the pin holes
of the clutch housing.
(c) Install the transmission with the 6 bolts.
Torque:
14 mm head
39 NVm (400 kgfVcm, 29 ftVlbf)
17 mm head
72 NVm (730 kgfVcm, 43 ftVlbf)
EG±124± ENGINEENGINE MECHANICAL

4. 2JZ±GTE M/T:
INSTALL CLUTCH COVER SET BOLTS
(a) Align the matchmarks.
(b) Install the 6 bolts while turning the crankshaft to gain access.
Tighten the bolts evenly.
Torque: 19 NVm (195 kgfVcm, 14 ftVlbf)
(c) Install the service hole cover with the 2 bolts.
Torque: 12 NVm (120 kgfVcm, 9 ftVlbf)
5. A/T:
INSTALL TORQUE CONVERTER CLUTCH MOUNTING
BOLTS
(a) First, install the gray bolt. Then install 5 black bolts while
turning the crankshaft to gain access. Tighten the bolts
evenly.
Torque: 33 NVm (340 kgfVcm, 25 ftVlbf)
(b) Install the hole plug.
6. 2JZ±GE A/T:
CONNECT THROTTLE CABLE
7. A/T:
INSTALL OIL COOLER TUBES FOR TRANSMISSION
(a) Temporarily install the 2 oil cooler tubes, 2 hose clamps and
tube clamp with 3 clamp bolts.
(b) Connect the 2 oil cooler tubes to the unions on the
transmission. Tighten the union nuts.
Torque: 34 NVm (350 kgfVcm, 25 ftVlbf)
(c) Tighten the 3 clamp bolts.
8. INSTALL STARTER
9. CONNECT ENGINE WIRE TO TRANSMISSION
10. A/T:
INSTALL OIL DIPSTICK GUIDE AND DIPSTICK FOR
TRANSMISSION
(a) Install a new O±ring to the dipstick guide.
(b) Apply soapy water to the O±ring.
(c) Connect the dipstick guide end to the dipstick tube of the oil
pan.
(d) Install the dipstick guide with the bolt.
(e) Install the dipstick.
± ENGINEENGINE MECHANICALEG±125

5. INSTALL EXHAUST PIPE HEAT INSULATOR
6. INSTALL NO.2 FRONT EXHAUST PIPE
(a) Install 2 new gaskets and the No.2 front exhaust pipe to the
exhaust manifold with 4 new nuts.
Torque: 62 NVm (630 kgfVcm, 46 ftVlbf)
(b) Install the pipe support bracket with the 2 bolts.
Torque: 43 NVm (440 kgfVcm, 32 ftVlbf)
(c) Install a new gasket and the No.2 front exhaust pipe to the
front exhaust pipe with the 2 bolts and 2 new nuts.
Torque: 58 NVm (590 kgfVcm, 43 ftVlbf)
7. M/T:
INSTALL CLUTCH RELEASE CYLINDER AND GROUND
STRAP
(a) Install the clutch release cylinder with the 2 bolts.
Torque: 13 NVm (130 kgfVcm, 9 ftVlbf)
(b) Install the ground strap with the bolt.
Torque: 37 NVm (380 kgfVcm, 27 ftVlbf)
8. M/T:
INSTALL UPPER CONSOLE PANEL, SHIFT LEVER
BOOTS AND HOLDING BOLTS
9. CONNECT ENGINE WIRE TO CABIN
(a) Push in the engine wire through the cowl panel.
NOTICE: Be careful not to damage the engine wire.
(b) Connect the connector to the connector cassette.
(c) Connect the connector to the instrament panel wire
connector.
(d) Connect the 2 connectors to the ECM.
(e) Insert the ECM bracket into the stay on the floor panel.
(f) Install the ECM with the nut.
(g) Install the ECM protector with the 2 nuts.
(h) Install the floor carpet.
(i) Install the scuff plate.
10. CONNECT ENGINE WIRE TO COWL PANEL
11. INSTALL A/C COMPRESSOR
(a) U s i n g a t o r x s o c k e t ( E 1 0 ) , i n s t a l l t h e s t u d b o l t a n d
compressor.
Torque: 26 NVm (265 kgfVcm, 19 ftVlbf)
(b) Connect the compressor connector.
(c) Temporarily install the compessor with the nut and 2 bolts.
(d) Alternately tighten the nut and 2 bolts.
Torque: 52 NVm (530 kgfVcm, 38 ftVlbf)
12. INSTALL PS PRESSURE TUBE
Install the pressure tube with the 2 clamp bolts.
± ENGINEENGINE MECHANICALEG±127

5. INSTALL REAR CENTER FLOOR CROSSMEMBER
BRACE
Torque: 28 NVm (290 kgfVcm, 21 ftVlbf)
6. INSTALL EXHAUST PIPE HEAT INSULATOR
7. INSTALL NO.2 FRONT EXHAUST PIPE
Install a new gasket and the front exhaust pipe with 3 new
nuts.
Torque: 62 NVm (630 kgfVcm, 46 ftVlbf)
8. INSTALL EXHAUST PIPE ASSEMBLY
(a) Install the hook of the tailpipe to the 2 rings on the tailpipe
bracket.
(b) Install the hook of the exhaust pipe to the 2 rings on the
exhaust pipe brackets.
(c) Install the pipe support bracket with the 2 bolts.
Torque: 43 NVm (440 kgfVcm, 32 ftVlbf)
(d) Install a new gasket and the No.2 front exhaust pipe to the
front exhaust pipe with the 2 bolts and 2 new nuts.
Torque: 58 NVm (590 kgfVcm, 43 ftVlbf)
9. INSTALL SUB HEATED OXYGEN SENSOR
Install a new gasket, the oxygen sensor and sensor cover
with the 2 nuts.
Torque: 18 NVm (180 kgfVcm, 13 ftVlbf)
10. M/T:
INSTALL CLUTCH RELEASE CYLINDER AND GROUND
STRAP
(a) Install the clutch release cylinder with the 2 bolts.
Torque: 13 NVm (130 kgfVcm, 9 ftVlbf)
(b) Connect the clutch line tube with the bolt.
Torque: 37 NVm (380 kgfVcm, 27 ftVlbf)
(c) Install the ground strap with the bolt.
Torque: 37 NVm (380 kgfVcm, 27 ftVlbf)
11. CONNECT ENGINE WIRE TO CABIN
(a) Push in the engine wire through the cowl panel.
NOTICE: Be careful not to damage the engine wire.
(b) Connect the 2 connectors to the connector cassette.
(c) Connect the connector to the instrument panel wire
connector.
(d) Connect the 2 connectors to the ECM.
(e) Connect the connector to the TRAC ECU.
(f) Insert the ECM bracket into the stay on the floor panel.
(g) Install the ECM with the nut.
(h) Install the ECM protector with the 2 nuts.
(i) Install the floor carpet.
(j) Install the scuff plate.
12. M/T:
INSTALL UPPER CONSOLE PANEL, SHIFT LEVER
BOOTS AND HOLDING BOLTS EG±130
± ENGINEENGINE MECHANICAL