Pinout for '87-96 Dash Switch CONNECTOR (harness side) for Tailgate Window
(Looking into the switch, the pins would be reversed.)
IF THE IMAGE IS TOO SMALL, click it.
Pin 2 is normally closed to pin 4, & pin 3 to pin 5. When the switch is operated, either pin 3 or pin 4 is momentarily opened from ground & closed to pin 1 (power).
To bypass the dash switch & test the rest of the circuit for DOWN, turn the key to RUN or ACC, install a jumper (paperclip, etc.) from 3 (P/LG) to either ground (2 or 5 Bk), then install a jumper from 1 to 4. To test UP, jumper 4 to either ground, and 3 to 1. If the motor doesn't spin during both tests, the dash switch is NOT the only fault.
Maximum current draw when glass is moving is 4A @ 14VDC.
See also:
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![switch89c274.jpg Pinout for '87-96 Dash Switch CONNECTOR (harness side) for Tailgate Window
(Looking into the switch, the pins would be reversed.)
IF THE IMAGE IS TOO SMALL, click it.
Pin 2 is normally closed to pin 4, & pin 3 to pin 5. When the switch is operated, either pin 3 or pin 4 is momentarily opened from ground & closed to pin 1 (power).
To bypass the dash switch & test the rest of the circuit for DOWN, turn the key to RUN or ACC, install a jumper (paperclip, etc.) from 3 (P/LG) to either ground (2 or 5 Bk), then install a jumper from 1 to 4. To test UP, jumper 4 to either ground, and 3 to 1. If the motor doesn't spin during both tests, the dash switch is NOT the only fault.
Maximum current draw when glass is moving is 4A @ 14VDC.
See also:
[url=https://www.supermotors.net/registry/media/692844][img]https://www.supermotors.net/getfile/692844/thumbnail/tgmotorwiring.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174807][img]https://www.supermotors.net/getfile/1174807/thumbnail/terminals-tinned.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174806][img]https://www.supermotors.net/getfile/1174806/thumbnail/switchtesting.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174788][img]https://www.supermotors.net/getfile/1174788/thumbnail/latchswcont.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174781][img]https://www.supermotors.net/getfile/1174781/thumbnail/interptsw.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174777][img]https://www.supermotors.net/getfile/1174777/thumbnail/defrost9296.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174772][img]https://www.supermotors.net/getfile/1174772/thumbnail/connectorscmpr.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174771][img]https://www.supermotors.net/getfile/1174771/thumbnail/conn89b2b.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174769][img]https://www.supermotors.net/getfile/1174769/thumbnail/circuit93.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174770][img]https://www.supermotors.net/getfile/1174770/thumbnail/circuitmods.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174816][img]https://www.supermotors.net/getfile/1174816/thumbnail/wiringb.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1174815][img]https://www.supermotors.net/getfile/1174815/thumbnail/wiring.jpg[/img][/url]](https://www.supermotors.net/getfile/1174802/fullsize/switch89c274.jpg)