0411 pcm A/C inop
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From: Hinesville, GA USA
Car: '86 IROC-Z/'94 Z28
Engine: 350 LT1/382 LT1
Transmission: 4L60-E/T-56
Axle/Gears: 3.45/3.42 (soon 4.10)
0411 pcm A/C inop
My 0411 TPI project is up and driving around, but I have a problem with the A/C not working. I have it wired up through the PCM, not using the high pressure sensor. I have the A/C request wire going through the pressure switch on the compressor and the cycling switch. Both work fine.
The PCM is receiving voltage on the A/C request wire, though I'm getting no output from the PCM to the A/C clutch relay to activate the compressor clutch.
My understanding is the high pressure switch is not a required input for the 0411 to send a signal to the clutch relay. However, this is not happening. Are there any prerequisites that to be met for the 0411 to send out the signal other than the request input?
I have my harness wired for the 0411/4x vortec L31 2001 Express van configuration.
The PCM is receiving voltage on the A/C request wire, though I'm getting no output from the PCM to the A/C clutch relay to activate the compressor clutch.
My understanding is the high pressure switch is not a required input for the 0411 to send a signal to the clutch relay. However, this is not happening. Are there any prerequisites that to be met for the 0411 to send out the signal other than the request input?
I have my harness wired for the 0411/4x vortec L31 2001 Express van configuration.
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