Toyota Celica Supra 1986 Service And Repair Manual page 657

BODY ELECTRICAL SYSTEM - Radio,
Ste~
Tape Player and Antenna
BE-109
TEST
Does needle mov. when
starch bunon is pushed?
{ Replace radio}
v
Yes
4. DEFECTIVE AUTQ.SEARCH MECHANISM
Manual search possible
but
automatic search mechanism
does not function or does not stop at all reeeivable stations.
Possible causes:
• Poor search sensitivity (SENS button)
• Defeetive radio
Is des.ired broadcast rec;eivatfe
v ..
OK
I
when button is at "DISTANT" position?
No
Check if desi red brO&dcan
can
actually
be
received in the area.
If reoeivable. replace radio,
Antenna Motor Control Relay
INS PECTION OF ANTENNA MOTOR CONTROL
RELAY
1. INSPECT RELAY OPERATION (ANTENNA UP)
2.
(a) Conneet the voltmeter positive
(+)
lead to terminal 1
and the negative(-) lead to terminal 4.
(b) Connect the positive
(+)
lead from the battery to
terminals 7 and 8. Conne<:t the negative (- )lead to
terminal 3.
(C)
Check that there is battery voltage.
INSPECT RELAY OPERATION (ANTENNA DOWN)
(a) Connect the voltmeter positive
{+)
lead to terminal
4 and the negative { -) lead to terminal 1.
(b) Conneet the positive
{+)
lead from the battery to
terminal 7. Conne<:t the negative ( -) lead to terminal
2.
oooooo
(c) Check that there is battery vo ltage.
3. INSPECT RELAY OPERATION {ANTENNA STOP)
(a) Connect the voltmeter positive
{+)
lead to terminal 1
and the negative (- ) lead to terminal 4.
(b) Connect the positive
(+)
lead from the battery to
terminals 7 and 9. Connect the negative {-) lead to
terminal 2.
(c) Check that there is no battery voltage.
If operation is not as specified, repl.>ce the relay.