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Federal filingsHome›Trouble codes› P1702
Diagnostic trouble code

P1702

11 owner reports and 0 manufacturer filings across 2 model years from Ford.

Powertrain Manufacturer-specific 11 owner reports

Where P1702 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reportsParts
2016 Ford F-150Power Train—10
2017 Ford ExpeditionPower Train—1

A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.

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What it gets filed under

Power Train 10 Electrical System 1

What owners said

Source: NHTSA complaint database

Owners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.

The vehicle was taken to the dealer, where DTC: P0705, P0706, P0707, and P1702 were retrieved, indicating a powertrain control module (PCM) and leadframe failure
2016 Ford F-150 at 81,000 miles Aug 4, 2026 NHTSA owner report
My 2017 Ford Expedition is currently at an authorized dealership (Arlington Heights Ford, IL) for a failed transmission lead frame (DTCs P0706, P0707, P1702), which causes intermittent loss of gear engagement and sudden shift issues
2017 Ford Expedition Apr 1, 2026 NHTSA owner report

A code names the test that failed. Not the part.

No manufacturer filing in NHTSA’s file names P1702. Owners’ reports are the record so far — and the model years they came from are above.

Photo: Compagnons / Unsplash

What P1702 means

Source: SAE J2012 / OBD-II

P1702 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.

A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.

From here

Common questions about P1702

Source: NHTSA files and the OBD-II standard

Why does this page not define P1702?

Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.

Can I keep driving with P1702 stored?

Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.

Does a code mean the car is recalled?

No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.

Why do the counts here differ from other sites?

Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.

Will clearing the code fix it?

Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.