That car doesn't use one at all.
It it's a manual system, the power comes directly from the control head through the 2 switches to the compressor.
If it's the Auto Temp control system, the compressor is controlled by the blower control module in the evaporator case.
Here are the wiring diagrams to help you. The first 2 are for the manual system and the third is the auto Temp control.
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Images available only to Customers.
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