P1464 on Ford: How to Diagnose & Fix
A/C Demand Out Of Self-Test Range
1 Ford model · 1 documented issue · $250-$1,600 repair
P1464 on Ford by model: symptoms, diagnosis and fix
The 2.0L EcoBoost uses an electronic wastegate actuator on the turbocharger. Two related failures show up repeatedly: the actuator rod's retaining e-clip goes missing or the linkage works loose, producing a metallic rattle from the turbo area at idle and light throttle; and the electronic actuator itself fails or sticks, so the PCM cannot hold commanded boost and sets an underboost or actuator-performance code with a noticeable flat spot under acceleration. On 2019-2021 Edges the wastegate actuator fault often surfaces as P1464, a code whose description misleads shops toward the A/C system. Left alone, a flapping wastegate flap wears its bushings and eventually requires the whole turbo.
Common Symptoms
- Metallic rattle from the turbo at idle or light throttle
- Check engine light with underboost code
- Flat spot or lack of power on acceleration
- Whistle or hiss under boost
- Limp mode on hard acceleration
- Rattle worse on cold start
How to Fix
Inspect the wastegate actuator rod and the e-clip at the linkage first - a missing clip is cheap to fix and is a known cause of both the rattle and the codes. If the actuator is electrically failed or its commanded-vs-actual position is out of range on a scan tool data log, replace the wastegate actuator assembly (available separately from the turbo on these engines). Check the charge-air plumbing and the turbo bypass valve for leaks before condemning the turbo on an underboost code. Once the flap and bushings are worn enough to be sloppy, the turbocharger itself needs replacement.
Sources for this issue (4)
P1464 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P1464 mean on a Ford?
P1464 stands for "A/C Demand Out Of Self-Test Range." Ford-family manufacturer-specific code set during PCM self-test. The PCM expects the A/C request (A/C demand) input to be OFF while a Key On Engine Off (KOEO) or Key On Engine Running (KOER) self-test is run. P1464 sets when the PCM sees an A/C or defrost request active during that self-test, or an out-of-range signal on the A/C demand circuit. It is most often simply a procedural fault — the climate control was left on during the test — but it can also indicate a genuine A/C request circuit or pressure-switch fault. Note this is not a turbocharger or wastegate code, so the catalogue issue citing it (Ford Edge 2.0L EcoBoost wastegate actuator) does not match its actual meaning. On Ford it is documented across 1 model: Edge.
What are the most common causes of P1464?
The most common causes of P1464 are: A/C or defrost left switched on while the KOEO/KOER self-test was performed, A/C demand circuit shorted to power, keeping the request signal active, Failed A/C pressure switch (cycling or high-pressure switch) or refrigerant pressure out of range, Failed A/C request switch or climate control head, Wiring / connector fault in the A/C demand circuit to the PCM. The specific cause varies by vehicle.
How much does it cost to fix P1464 on a Ford?
Published repair estimates on Ford range from $250 to $1,600 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P1464 on a different make?
View P1464 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.