TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System23 / 121
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REPLACEMENT OF FRONT WIPER AND WASHER SWITCH — MK2 Supra Body Electrical System, page 23
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REPLACEMENT OF FRONT WIPER AND WASHER SWITCH REPLACE WIPER AND WASHER SWITCH (a) Remove the terminals from the connector. (See page BE 2) (b) Remove the wiper control switch and washer switch. (c) Install the wiper control switch and washer switch. (d) Connect the terminals to the connector. (See pages BE 3 and 22) Front Wiper and Washer Relay INSPECTION OF FRONT WIPER AND WASHER RELAY 1. INSPECT INTERMITTENT OPERATION OF RELAY (a) Connect the positive (+) lead from the battery to terminal 12. Connect the negative (-) lead to ter- minals 10 and 11. (b) Inspect continuity between terminals 6 and 12 as follows. Disconnect terminals 1, 2 and 3 Time (seconds) | Between terminals 6 and 12 Connect terminals 10 and 11 1.2 +10.3 -0.2 | Continuity 4.3 ± 1 | Continuity 0.7 +0.4 -0.5 | Continuity 4.3 ± 1 | Continuity Connect terminals 1, 2 and 3 Time (seconds) | Between terminals 6 and 12 Connect terminals 10 and 11 1.2 +10.3 -0.2 | Continuity 2 ± 0.6 | Continuity 0.7 +0.4 -0.5 | Continuity 2 ± 0.6 | Continuity 2. INSPECT WASHER CIRCUIT OF RELAY (a) Connect the positive (+) lead from the battery to terminal 12. Connect the negative (-) lead to terminal 10. (b) Inspect continuity between terminals 7 and 9 as follows. Time (seconds) | Between terminals 7 and 9 | Time (seconds) | Between terminals 7 and 9 Disconnect terminals 4 and 10 over 1 | Continuity | 3.7 ± 1 | No Continuity If continuity is not as specified, replace the relay.