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Chevrolet Express
Platform: GMT Van

2000 express 3500 A/C issue

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Old Jun 24, 2020 | 4:19 PM
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Default 2000 express 3500 A/C issue

The compressor will not turn on. I've traced the issue to the compressor relay/VCM trigger signal. The hi and low switches seem to be working correctly and giving the vcm the proper signal but the control line from the vcm to the relay (i believe is Drk grn/white wire) doesn't seem to be supplying the signal to the relay coil.
can someone verify which connector and which wire from the vcm is the trigger wire?
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