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P1702 Powertrain · manufacturer code
P1702 fault code: what 15 Ford owners reported
P1702 is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition belongs to the carmaker and is not in the generic OBD-II list. What it meant in practice is below, from 15 complaints owners filed with NHTSA. Updated November 3, 2026.
- 15owner reports
- 2car models
- 0mention a crash
- 0mention a fire
- 2015–2017model years
Which cars get code P1702?
Every model whose owners mentioned P1702 in a complaint, most reports first. Each year opens that car's full problem report. Popular models collect more reports because more of them are on the road.
Ford Expedition
1 reportWhere does P1702 show up?
By brand
- Ford15
Component the owner filed it under
Is there a recall for P1702?
The others concern the component owners file this code under (Power Train) on the same cars; they may or may not relate to the code. Recall repairs are free; check your VIN at nhtsa.gov/recalls.
Power Train: Automatic Transmission Ford Motor Company (Ford) is recalling certain 2015-2017 F-150 vehicles. A loss of signal between the transmission range sensor and the powertrain control module can cause the transmission to unexpectedly downshift into second gear.
2016 Ford F-150, 2017 Ford F-150. Full risk and remedy on each car's report.
Power Train: Automatic Transmission Ford Motor Company (Ford) is recalling certain 2017-2018 Ford F-150 and 2018 Ford Expedition and Mustang and Lincoln Navigator vehicles equipped with 10-speed automatic transmissions. A roll pin may not have been installed in the transmission, potentially causing a loss of the "Park" function.
2017 Ford F-150. Full risk and remedy on each car's report.
Power Train: Automatic Transmission: Lever And Linkage: Column Shift Ford Motor Company (Ford) is recalling certain 2017 F-150 vehicles equipped with ten-speed transmissions. The pin that attaches the transmission shift linkage to the transmission may come out, preventing the transmission from responding to movement of the shift lever.
2017 Ford F-150. Full risk and remedy on each car's report.
Power Train: Automatic Transmission: Gear Position Indication (PRNDL) Ford Motor Company (Ford) is recalling certain 2017 F-150 trucks equipped with an eight-inch productivity screen. In these vehicles, the instrument cluster may lose power after the initial vehicle start-up in cold ambient temperatures. Several gauges, including the transmission gear position…
2017 Ford F-150. Full risk and remedy on each car's report.
What happened when owners saw P1702?
10 of the 15 reports, spread across the models above, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
Ford mailed me a XXX Customer Satisfaction Program 26N04 letter for my 2016 F-150, VIN [XXX]. That letter offered a one-time, no-charge replacement of the transmission molded lead frame if the dealer determined replacement was needed, and it described a malfunction indicator lamp and/or wrench light when that part fails. My truck did exactly that. It stored P0715 and P0717, went into limp mode, and the wrench came on. Titus-Will Ford in Tacoma confirmed the turbine speed sensor is part of the lead frame and replaced it (part AL3Z-7G276-D). They denied 26N04 because those codes are not P0705, P0706, P0707, or P1702 — a code list the customer letter never disclosed. The failed part is the part…
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. This specific part is subject to NHTSA Engineering Analysis EA26001. Ford is refusing to honor the 10-year/150000-mile extended coverage (Program 19N01 Supplement 4) and a separate safety recall (25S37 for Brake master Cylinder) because the Vehicle was originally manufactured for Canadian market. Despite the Vehicle being in a U.S. facility, Ford claims a 'system limitation' prevents them from bridging the VIN for these safety repairs. This is a formal refusal…
Truck downshifts into low gear, yellow wrench and engine light come on and the truck goes into limp mode, no warnings or anything. These symptoms first started about 5 months ago and I have stopped driving the truck for that time. I took it to the dealer after looking it up and seeing there was a recall 26S28 for the molded leadframe. At the dealer they told me they couldn't perform the service because my truck was showing codes: P061A-00, P0720-00, and P0722-00 and they needed: P0705, P0706, P0707, P1702 to perform the recall service. My codes also point to the molded leadframe but the speed sensors instead of the range sensors.
Truck began downshifting from 6th gear to 5th numerous times at highway speeds (60ish mph). Wrench warning light would randomly come on, Service Engine Soon light would intermittently come on, followed by the dashboard totally blanking out. In one day on a drive to work, it started shifting from 6th to 4th. On the way home the same day, it shifted violently from 6th to 2nd gear hard at highway speed. The occurrence was a big safety concern as it was raining out - almost skidded out of control. As the truck was being driven into the dealership, there was NO acceleration - just revving of the engine which could have caused a major accident while having to cross two lanes of oncoming traffic…
Driving at 65mph in 5th gear, unexpected downshift into 3rd gear causing vehicle to loose power, immediate decline in speed by 20 mph and no acceleration. Vehicles behind me were forced to slam on brakes to avoid collision. Vehicle had check engine as well as wrench pop up on dashboard when downshift occurred. Took vehicle to Ford Dealership for diagnosis and repair. Error code p0706, p0707,p1702,p1921. Recommend to replace, Molded lead frame with main control, gaskets, transmission filter, fluid. Total cost for repair $2979.54.
Vehicle is experiencing delayed shifting and down-shifting at inappropriate times. Rear wheels will occassionally lock-up causingthe truck to slide sideways. Orange wrench light is on and the check engine light as well. It shows the following codes--P0706-00, P0707-00, P1702-00, AND P1921-00.
Very harsh down shifting, one incident happened at about 40mph but was already slowing down for a light so nothing catastrophic happened but if I was traveling at a higher speed a crash would’ve more than likely happened, and eventually threw codes: P0706, P0707, P1702, P1921 which is for the molded lead frame inside the transmission. Codes were pulled myself with my own devices and according to research all code descriptions are things that are faulty on the molded lead frame assembly
While driving vehicle randomly down shifts or slips out of gear causing truck tires to lose traction and suddenly slow down rate of speed. Dash lights around the transmission and gear numbers are flashing and or disappear, go away, or are not illuminated. Diagnose code (DTC) code P1702 present in system. Service shop said complete teardown required to further diagnose. Six week wait with other vehicles in line ahead of me
Wednesday. 22 March 2023: While driving on the Hwy 83 By-Pass accelerating up an incline, the F150 shifted from 6th gear to 3rd gear. It did not downshift to 5th or 4th. It went directly from 6th to 3rd gear. When it did this the truck went from 55 mph to skidding the rear tires (almost a complete stop) before the truck moved forward in 3rd gear. During this immediate deceleration instance, (where my sternum bounced off the seat belt) the "dummy light" Wrench icon appeared as well as prompts on the dashboard indicating there were faults with Blind Spot System and Cross Traffic System. I pulled over to the side of the road and shut the vehicle off. Due to the immediate deceleration and loss…
2015 Ford F150 - 85,000 miles. While driving at highway speeds vehicle suddenly locked the tires and began to slide out of control. PRNDL display went black and wrench warning light illuminated on dash. Car behind me nearly rear-ended due to rapid deceleration without brake lights. I was able to steer to the shoulder to avoid an accident. After shutting off vehicle and restarting, vehicle acted normally. Wrench indicator remained illuminated. Took vehicle to local ford dealership where multiple PCM codes were found: P06E9, P0707, P1702, P1921. Dealer Service was able to reproduce issue; slight movement/wiggle to shifter caused transmission range sensor to "go erratic". Technician recommended…
P1702: questions drivers ask
What does code P1702 mean?
P1702 is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition depends on the carmaker and is not in the generic OBD-II list. 15 owners reported it to NHTSA, most often for the Ford F-150 (14), Ford Expedition (1); their reports describe what happened.
Which cars get code P1702 most often?
In NHTSA owner complaints, P1702 is mentioned most for the Ford F-150 (14), Ford Expedition (1), across 2 models and model years 2015 to 2017. Popular models collect more reports because more of them are on the road.
Is there a recall for code P1702?
No NHTSA recall text names P1702 directly. 4 recalls on the cars that report this code concern the same component owners name most (Power Train); they may or may not relate to the code. Check your VIN at nhtsa.gov/recalls.
What should I do if my car shows P1702?
Write down when the code appeared and what the car did (warning lights, loss of power, noises, speed, weather). Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer or independent workshop to read the stored freeze-frame data before anyone clears the code, and keep the repair order. If the car loses power in traffic, stop driving it. CarHooq does not diagnose: these are owner reports and official recall notices, not repair advice.
How this page was made
CarHooq read the text of every owner complaint filed with NHTSA for 19 US and European brands (model years 2012 onwards) and picked out the diagnostic trouble codes owners wrote down. This page lists every mention of P1702. Manufacturer codes have no public standard definition, so CarHooq shows only what owners reported. Nothing here is a diagnosis. Data: NHTSA Office of Defects Investigation (public domain), retrieved November 3, 2026. How CarHooq reports are made.
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