1997 TOYOTA SUPRA radio

I01413
CONTINUED FROM PREVIOUS PAGE
Is power source from radio OK?Check continuity between motor antenna
and radio receiver assembly.
Wire harness faulty.
Radio receiver assembly faulty. Inspect motor.
Motor antenna control relay faulty.
Motor faulty.No
Ye s
No
No
Ye sYe s
I01414
27
Antenna ANTENNA-RELA TED
Is the antenna cable connected securely to the radio?Connect the cable
Go to 26. No
Ye s
 Normal Type
Does antenna rod extend fully when radio
 Variable Length Type
Does antenna rod extend to the specified
radio switch is turned off?
Inspect glass printed antenna.
(w/ glass printed antenna)Glass printed antenna faulty. NG
OK
Is the antenna nut tight?
Temporarily install another antenna. Functions OK?
Radio receiver side faulty.Tighten nut.
Motor antenna faulty. switch is turned on?
Does antenna rod fully retract when the length when the radio switch is turned on.No
No Ye s
Ye s
Ye sYe s BE-94
- BODY ELECTRICALAUDIO SYSTEM
2072 Author
: Date
:
1997 SUPRA (RM502U)

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.

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.

29
G
Position of Parts in Instrument Panel
O 5 O/D Main SW and A/T Indicator Illumination
P 4 PPS ECU
P 5 Parking Brake SW
R 4 Radio and Player (w/o Stereo Power Amplifier)
R 5 Radio and Player (w/o Stereo Power Amplifier)
R 6 Radio and Player (w/ Stereo Power Amplifier)
R 7 Remote Control Mirror SW
R 8 Rheostat
S 6 Seat Heater SW
S 7 Shift Lock ECU
S 8 Stereo Power Amplifier
S 9 Stereo Power Amplifier
S10 Stereo Power Amplifier
S11 Stop Light SW
S16 Sub Heated Oxygen Sensor (Bank 1 Sensor 2)
T 5 Telltale Light LH
T 6 Telltale Light RH
T 7 Theft Deterrent and Door Lock Control ECU
T 8 Traction Control SW
T13 Theft Deterrent and Door Lock Control ECU
T15 Throttle ECU
T16 Throttle ECU
U 1 Unlock Warning SW E 8 Electronically Controlled Transmission Pattern
Select SW
E 9 Engine Control Module
E10 Engine Control Module
E11 Engine Coolant Temp. Sensor (A/C System)
F10 Front Tweeter (Speaker) LH
F11 Front Tweeter (Speaker) RH
G 3 Glove Box Light
G 4 Glove Box Light SW
H10 Hazard SW
H11 Heated Oxygen Sensor (Bank 1 Sensor 2)
H12 Heater Control SW
H13 Heater Control SW
I18 Ignition Key Cylinder Light
I19 Ignition SW
I20 Integration Relay
J 1 Junction Connector
J 2 Junction Connector
K 4 Kick Down SW
N 2 Noise Filter

STEREO POWER
AMPLIFIER
RADIO AND PLAY ER
BLOWER MOTOR
CONTROL RELAY
SEAT HEATER RELAY
(
PASSENGER' S SEAT)
SEAT HEATER
(
PASSENGER' S SEAT)
BUCKLE SW RH
DOOR COURTESY SW RH
HIGH BEAM INDICATOR
LIGHT [COMB. METER]
TRACTION CONTROL SW
SHIFT LOCK ECU
ELECTRONICALLY
CONTROLLED
TRANSMISSION
PATTERN SELECT SW
O/D MAIN SWSEAT HEATER SW
DA YTIME RUNNING
LIGHT RELAY (
MAIN) (
EP)
(
GND)
HE ATE R CONTROL SW
CI GARETTE LI GHTER
CL O CK
AU TO AN TENNA
CONTROL RELAY GLOVE BOX LIGHT SW
THEFT DETERRENT
AND DOOR LOCK
CONTROL ECU
PPS ECU
DOOR LOCK CONTROL
SW RH RE MOTE CONTROL
MIRROR AND MIRROR
HE A TE R RH
DOOR LOCK MOTOR AND
DOOR UNL OCK
DE TECTION S W RH DOOR KEY LOCK AND
UNLOCK SW RH IG
IH I24 I24 I23
I23
I 2
I11
I10I21
B 2 B 2 I25
B 2 IL116 IF311
IK11
IF114
I18
I18IF
I14(
E2)
(
VER1)COMBINATION
METER
A/C
AMPLIFIER
W- B
(
*2)W- B
(
*1)
W- B
(
*2)
W- B
(
*1)
W- B
(
*3)
W- B
(
A/T)
W- B
(
*1)
W- B
(
*1) W- B
(
*1)W- B
(
*1)W- B
(
*1) W- B
(
*1)
W- B
(
*1)
W- BW- B
W- B W- BR- L W- B W- B W- B
W- B W- B W- B W- B W- B W- BW- B
W- BW- B
W- B W- B W- B W- B W- B W- B W- B W- B
W- B
W- B BR BR BR
A
A
A
A
A
A A
A
W- B W- BW- B
W- B W- B
W- B W- B W- B
JUNCTION
CONNECTOR J 1
I11 : * 3
I 4 : * 4 (
*1)(
*1) (
*6)
(
GND)
(
GND)ABS ECU
W- BW- B
(
A/T)
(
A/T)
DA TA LI NK
CONNECTOR 3 W- B I 3
I14
BR
W- BW- BW- B (
*5)
COMBINATION METER
TELLTALE LIGHT RH
FUEL SENDERI 8
I 3
IE13
BP11
BR BRBR
BR
BR
BR
BR
W- B
I10 : * 3
I 9 : * 4I18 : * 3
I 4 : * 4
I18 : * 3
I 4 : * 4
I11 : * 3
I 1 : * 4
242
J GROUND POINT

I19 I14 I14
I12
I12
2 1
3 2
1 2
8 20
9 2
104
13 12
A A2 1
IH2 5I14
IF3 10
IHIH1 10 G- OG-O G-O G-O G-O
G- O
G- OG- O G- O
W- BG- O W- G
W- B
G- O
G- O
G- O
G- O
G- O
G- O
G- O
G- O
G- O W- G
W- G
W- G
W- G
W- G
W- G
W- G W- GW- B W- BW
G- O G- O
G
3 21 BB W- G
(
*1)
(
*2)
A 10
B 5
B
GLOVE BOX LI GHT G 3
HAZARD SW H1 0
CI GARETTE LI GHTER
ILLUMINATION C 7
HEATER CONTROL SW H1 2 RADIO AND PLAYER (
*2)
RADIO AND PLAYER (
*1) R 6
ODO AND TRIP ILLUMINATION
[TELLTALE LIGHT RH] T 6
C10
METER ILLUMINATION
[COMB. METER]
J 1
JUNCTION CONNECTOR
JUNCTION
CONNECTOR J 1
(
*2)
(
*1)
GLOVE BOX
LIGHT SW G 4
B R 4 , R 5A
(
*1) (
*1)
I14
BB BBB
ILL- T
E RHE OSTAT R 8
123
* 2 : W/O STEREO POWER AMPLIFIER
* 1 : W/ STEREO POWER AMPLIFIER

B 8A 8
B 9A 1
B 3A 3
B 4A 4B 10B3 B9 B1 A6 A3
I16 IH1 8IH19
IF IF3 11A 4 GR
L- Y
L- Y
GR
P- L
P- L
B- R
B- R(
*1)
(
*1)
(
*2)
(
*2)
(
*1)
(
*2)
(
*1)
(
*2)
B- R
B- R
P- L
P- L
GR
V
L- Y
LGP- L
P- L
BR
GR
(
*1)
L- Y
(
*1)
P- L
(
*1)
V
(
*1)
LG
(
*1) (
SHI ELDED)
(
SHIELDED)
(
*2)
(
*1)
(
*2)
(
*1)
(
*2)
(
*1)
(
*2)
(
*1)(
*1)
(
*1)
ACC
+B1
AMP+
OUT
OUT
GND
(
*1)
(
*2)GND
BR
STER EO POWER
AMPLIFIER
RADIO AND PLAYERB S 8 , S 9A
A R 4 , R 6B ANT AMP ACC B
211
* 2 : W/O STEREO POWER AMPLIFIER * 1 : W/ STEREO POWER AMPLIFIER