TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System, page 99

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Body Electrical System — MK2 Supra Body Electrical System, page 99
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Page text (OCR transcript)
Door Lock Switch

INSPECTION OF DOOR LOCK SWITCH

INSPECT SWITCH OPERATION
(a) Check that there is continuity between terminals with the door closed.
(b) Check that there is no continuity between terminals with the door opened.
If operation is not as specified, replace the switch.

Back Door Courtesy Switch

INSPECTION OF BACK DOOR COURTESY SWITCH

INSPECT SWITCH OPERATION
(a) Check that there is continuity between terminal and body ground when the switch is free.
(b) Check that there is no continuity between terminal and body ground when the switch pin is pushed.
If operation is not as specified, replace the switch.

Back Door Key Unlock Switch

INSPECTION OF BACK DOOR KEY UNLOCK SWITCH

INSPECT SWITCH CONTINUITY
(a) Check that there is continuity between terminals 1 and 3 with the switch is unlock position.
(b) Check that there is no continuity between terminals 1 and 3 with the switch is except unlock position.
If continuity is not as specified, replace the switch.

Diode (For LH Key Unlock Switch and Taillight Control Relay)

INSPECTION OF DIODE

INSPECT DIODE CONTINUITY
Connect the test leads of the ohmmeter to terminals 1 and 2, and check for continuity. Next reverse the test leads and check, again, for continuity.
If both of the test results are same condition, replace the diode.