TSRM/MK2 Supra/Repair Manual
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BE/Body Electrical System — Rear Wiper and Washer Switch, page 25

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Rear Wiper and Washer Switch — MK2 Supra Body Electrical System, page 25
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Page text (OCR transcript)
Rear Wiper and Washer Switch

INSPECTION OF REAR WIPER AND WASHER SWITCH

INSPECT SWITCH CONTINUITY
Inspect the continuity between the terminals for each switch position shown in the table below.

Switch position | Terminal 5 | 4 | 3 | 2 | 6 | 1
Wiper (INT side) | o—o | o——o | o—o
INT | o—o | o——o
OFF | o—o
ON | o | o
Washer (ON side) | o | o—o

If continuity is not as specified, replace the switch.

Rear Wiper Relay

INSPECTION OF REAR WIPER RELAY

INSPECT RELAY OPERATION
Connect the positive (+) lead from the battery to terminal 1. Connect the negative (—) lead to terminal 4.
(a) With connect the positive (+) lead from the battery to terminal 2, check that there is no continuity between terminals 1 and 3.
(b) With disconnect terminal 2, check that there is no continuity between terminals 1 and 3 for 9 — 15 seconds.

If operation is not as specified, replace the relay.

Rear Wiper Motor

INSPECTION OF REAR WIPER MOTOR

1. INSPECT THAT MOTOR OPERATES
(a) Connect the positive (+) lead from the battery to terminal 1. Connect the negative (—) lead to the motor body.
(b) Check that the motor operates.