TOYOTA SUPRA 1997 Service Repair Manual

28 Noise NOISE PRODUCED BY VIBRATION OR SHOCK WHILE DRIVING
No
Ye s Is speaker properly installed?
Noise is produced from static electricity accumulating in the vehicle body. With vehicles stationary lightly tap each system.
Is noise produced?Install properly.
Each system faulty. Is speaker properly installed?
No
No Ye s
Ye s
29 Noise NOISE PRODUCED WHEN ENGINE STARTS
NoYe s Whistling noise which becomes high-pitched when
accelerator strongly depressed, disappears shortly
after engine stops.Generator noise.
A/C noise.
Fuel gauge noise.
Horn noise.
Ignition noise.
Turn signal noise.
Washer noise.
Engine coolant temp. gauge noise.
Wiper noise. Whining noise occurs when A/C is operating.
Scratching noise occurs during sudden acceleration, driving on rough
roads or when ignition switch is turned ON.
Clicking sound is heard when horn button is pressed, then
released. Whirring/grating sound is heard when pushed
continuously.
Murmuring sound stops when engine stops.
Tick-tack noise occurs in co-ordination with blinking
offlasher.
Noise occurs during window washer operation.
Scratching noise occurs while engine is running,
and continues a while even after engine stops.
Scraping noise in line with wiper beat.
Other type of noiseYe s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s No
No
No
No
No
No
No
No
- BODY ELECTRICALAUDIO SYSTEM
BE-95
2073 Author
: Date
:
1997 SUPRA (RM502U)

BE0EO-02
BE-96
- BODY ELECTRICALAUDIO SYSTEM
2074 Author
: Date
:
1997 SUPRA (RM502U)
LOCATION

BE4671
Antenna NutBE0EP-01
BE5781
- BODY ELECTRICALANTENNA
BE-97
2075 Author
: Date
:
1997 SUPRA (RM502U)
ANTENNA
REMOVAL
REMOVE ANTENNA ROD
HINT:
Do this operation with the negative (-) terminal cable connected
to the battery.
(a) Turn the ignition switch to ºLOCKº position.
(b) Remove the antenna nut.
(c) Press the ºAMº button on the radio receiver, and simulta-
neously turn the ignition switch to ºACCº position.
HINT:

The rod will extend fully and be released from the motor
antenna.

After removing the antenna rod, leave the ignition switch
at ºACCº.
NOTICE:
To prevent body damage when the antenna rod is released,
hold the rod while it comes out.

BE0EQ-01
N07694
Wire Harness Side
N08852
BE-98
- BODY ELECTRICALANTENNA
2076 Author
: Date
:
1997 SUPRA (RM502U)
INSPECTION
1. INSPECT RELAY CIRCUIT
Disconnect the connector from the relay and inspect connector
on wire harness side, as shown in the chart.
If circuit is not as specified, replace the relay.
Tester connectionConditionSpecified condition
6 - GroundConstantContinuity
2 - 3ConstantContinuity
1 - GroundConstantBattery positive voltage
4 - GroundIgnition switch position ONBattery positive voltage
5 - GroundIgnition switch position ACC or ONBattery positive voltage
7 - GroundIgnition switch position ACC or ON
and radio switch ONBattery positive voltage
8 - GroundIgnition switch position ACC or ONBattery positive voltage
2. INSPECT MOTOR ANTENNA
(a) Install antenna nut.
(b) Connect the positive (+) lead from the battery to terminal
1 and the negative (-) lead to terminal 2.
(c) Check that the motor turns (moves upward).
NOTICE:
These tests must be done quickly (within 3 - 5 seconds) to
prevent the coil from burning out.
(d) Then, reverse the polarity, and check that the motor turns
the opposite way (moves downward).
NOTICE:
These tests must be done quickly (within 3 - 5 seconds) to
prevent the coil from burning out.
HINT:
When the motor is normal, lower the antenna to its lowest posi-
tion.
If operation is not as specified, replace the antenna motor as-
sembly.

- BODY ELECTRICALANTENNA
BE-99
2077 Author
: Date
:
1997 SUPRA (RM502U)
3. INSPECT GLASS PRINTED ANTENNA
(Use same procedure as for ºINSPECT DEFOGGER WIRESº.)
4. REPAIR GLASS PRINTED ANTENNA
(Use same procedure as for ºREPAIR DEFOGGER WIRESº.)

BE0ER-01
Z14749
Insert
Front
Teeth on
Cable
BE4674
Twist BE-100
- BODY ELECTRICALANTENNA
2078 Author
: Date
:
1997 SUPRA (RM502U)
INSTALLATION
INSTALL ANTENNA ROD
(a) Insert the cable of the rod until it reaches the bottom.
HINT:

When inserting the cable, the teeth on the cable must face
toward the rear of the vehicle.

Insert the cable approx. 400 mm.
(b) Wind the cable to retract the rod by turning the ignition
switch to ºLOCKº position.
HINT:

If the ignition switch is already in ºLOCKº position, do step
1 (c) first, then turn the ignition switch to ºACCº position.

In case the cable is not wound, twist it as shown in the il-
lustration.

Even if the rod has not retracted fully, install the antenna
nut and inspect the antenna rod operation. It will finally re-
tract fully.
(c) Inspect the antenna rod operation by pushing the radio
wave band select buttons.

BE1L5-01
1 CLOCK WILL NOT OPERATE
I02074
Is there battery positive voltage between terminal
+B and body ground?
Is there continuity between terminal GND and body
ground?Open or short circuit in wire harness between
terminal +B and DOME fuse.
Open circuit in wire harness between terminal
GND and body ground. Ye s
Ye sNo
No
Replace clock assembly.
- BODY ELECTRICALCLOCK
BE-101
2079 Author
: Date
:
1997 SUPRA (RM502U)
CLOCK
TROUBLESHOOTING
HINT:
Troubleshoot the clock according to the table below.
ProblemNo.
Clock will not operate1
Clock loses or gains time2
± 1.5 seconds / day
1. PROBLEM No.1
(a) Check that the battery positive voltage is 10 - 16 V.
If voltage is not as specified, replace the battery.
(b) Check that the DOME fuse is not blown.
If the fuse is blown, replace the fuse and check for short.
(c) Troubleshoot the clock as follows.
HINT:
Inspect the connector on the wire harness side.

2 CLOCK LOSES OR GAINS TIME
I02074
Is there 10 - 16 V between terminal +B and body
ground?Locate cause and repair, or recharge battery.
Ye sBellow 10 V
Adjust or replace clock assembly. BE-102
- BODY ELECTRICALCLOCK
2080 Author
: Date
:
1997 SUPRA (RM502U)
2. PROBLEM No.2
(a) Check that the battery positive voltage is 10 - 16 V.
If voltage is not as specified, replace the battery.
(b) Inspect the error of the clock.
Allowable error (per day): ± 2.0 seconds
If the error exceeds the allowable error, replace the clock as-
sembly.
(c) Check if the clock adjusting button is sticking in position
and has failed to return.
If the button has not returned, repair or replace the clock assem-
bly.
(d) Troubleshoot the clock as follows.
HINT:
Inspect the connector on the wire harness side.

BO0Q7-01
V00005
Shape (Example)
Removal/ Installation
Screwdriver
Scraper Clip RemoverPliers
- BODYCLIP
BO-1
2081 Author
: Date
:
1997 SUPRA (RM502U)
CLIP
REPLACEMENT
The removal and installation methods of typical clips used in body parts are shown in the table below.
HINT:
If the clip is damaged during the operation, always replace it with a new clip.

V00012
Shape (Example)
Removal/ Installation
Installation Removal
Removal Installation BO-2
- BODYCLIP
2082 Author
: Date
:
1997 SUPRA (RM502U)