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Potential Tuner
3.5 Ecoboost - A/C Clutch Out Fail Crate Motor PCM
Was wondering if anyone on the forum had experienced an a/c clutch out fail on a 3.5 Ecoboost?
Scanner shows pass KOEO but goes to fail when the engine starts. No MIL light.
A/C pressure is showing 68 psi.
Even though the wiring diagram for the PCM (crate motor) doesn't show an ambient air temp sensor, one was added with no change.
The A/C hardware tabs for master enable and pressure switch settings were set to Disabled/Disabled, Disabled/Enabled, Enabled/Disabled, and Enabled/Enabled with no change.
The relay cycles normally when grounding the pin at the PCM connector.