TSRM/MK3 Supra/Repair Manual
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BE/Body Electrical System — Rear Wiper and Washer Switch, page 34

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p.035
Rear Wiper and Washer Switch — MK3 Supra Body Electrical System, page 34
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Page text (OCR transcript)
BE-34

BODY ELECTRICAL SYSTEM — Wipers and Washers

Reference
[Diagram showing switch connector]
WASH 1
WASH 2

Rear Wiper and Washer Switch

INSPECT SWITCH

INSPECT SWITCH CONTINUITY
Inspect the switch continuity between terminals.

Terminal
(Wire color)
Switch Position
1/20
(GR)
2/20
(V)
10/20
(O)
16/20
(B)

Washer I
OFF
INT
ON
Washer II

If continuity is not as specified, replace the switch.

Rear Wiper Motor and Relay

INSPECT MOTOR AND RELAY

1. INSPECT RELAY AND MOTOR OPERATES
(a) Connect the positive (+) lead from the battery to terminal 1 and negative (—) leads to both terminal 2 and motor body.
(b) Check that the motor operates.

2. INSPECT INTERMITTENT OPERATION OF RELAY
(a) Connect the positive (+) lead from the battery to terminal 1 and negative (—) leads to both terminal 2 and motor body.
(b) Check that the motor does not operate intermittently for 9 — 15 seconds.

3. INSPECT MOTOR OPERATES, STOPPING AT STOP PO-SITION
(a) Start motor operation by connecting the positive (+) lead from the battery to terminal 1 and the negative (—) lead to both terminal 3 and motor body.
(b) Stop motor operation anywhere except stop position by disconnecting terminal 1.

[Three diagrams labeled BE0094, BE0097, and BE0098 showing wiper motor and relay test configurations]