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Old 04-13-2001, 07:26 PM
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Dear All:

This is a 1991 300TE, there is a black plastic cover/panel behind the battery (passanger side under hood). When I remove it I see some relys and a small black box with a switch on the top. The swith is marked with I/O markings indicating that it is some kind of a on/off switch. What is this part? Why is there a switch?

TIA for any comments

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Old 04-13-2001, 07:41 PM
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Join Date: Dec 2000
Posts: 368
The switch that you are talking about is just to plug or unplug relay box. It is a system that pushes or pulls itself into place. That specific relay, computer box(MAS) controls AC compressor and fuel pump functions.

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