Toyota Celica Supra 1986 Service And Repair Manual page 609

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BODY ELECTR ICA L SYSTEM - Rear Window Delogger BE-61
REAR WINDOW DEFOGGER
Troubleshooting
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Remody
Pogo
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Reset bnaktt and chec:k for short BE-4
Otfogger relay f-auhy
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r elay
BE-61
Oefower switch fauhv
Chectt ~Wi tth
BE-61
Otfogger
wire btoken Chtck w ires
BE-62
Wiring and ground ftulty
Repair u necessaty
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Rear Window Defogger Switch
INSPECTION OF REAR WINDOW DEFOGGER
SWITCH
INSPECT SWITCH OPERATION
( a)
Connect the positive
(+)
lead from the battery to
terminal 5. Connect the negative (-I lead to terminal
6.
(b)
Connect an ohmmeter between terminals 2 end 6.
.
.
.
.
(c) Check that there
IS
contonuoty between termonals for
10 - 20 minutes with the switch tumed on.
If operatloo Is not as specified, replace the switch.
Rear Window Defogger Relay
INSPECTION OF REAR WINDOW DEFOGGER
RELAY
1. INSPECT RELAY CONTINUITY
(a) Check that the there is continuity between terminals
1
and
3.
(b) Check that there is no continuity between terminals
2 and 4.
If continuity is not as specified, replace tho relay.
2. INSPECT RELAY OPERATION
Connect the positive
(+)
lead from the battery to terminal
1 and connect the negative (-) lead from the battery to
terminal 3. Then, check that there is continuity between
terminals 2 and 4.
If operation is not as specified, replace the relay.