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Old 05-27-2023, 11:06 PM #1
blue-r6 blue-r6 is offline
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No power to ac compressor
I have 06 4runner 4wd sport 4.7l. My evaporator core has a small leak. I hooked up my 2 ac gauges and saw it was just a little low so I decided to top it off. As i was adding freon the compressor cut off. I ran a jumper wire straight to the compressor and the clutch started turning and it got cold. So I know my clutch is good. I checked voltage and I have no power to the compressor or the pressure sensor. I checked the fuse and swapped the relay with the fog light relay but it still didn't work. The ac light stays lit up. Do you think my ac amplifier went bad? What powers the compressor? Thanks in advance.
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Old 05-29-2023, 07:10 PM #2
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When it was my AC amplifier, the AC light on my control panel was blinking. AC Amplifier replacement 4th gen 4runner
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Old 05-31-2023, 05:17 PM #3
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There's usually 2 pressure switches. One on the high side to control cycling and one on the low side. The last system I worked on had fused power to the low side which then was wired directly to the high side which was not working. Not sure if these are wired the same way.
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