P0700: How to Diagnose & Fix — Transmission Control System Malfunction
182 vehicles · 28 makes · $5-$20,000 repair
How to diagnose and fix P0700: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Ford Focus · 2012–2018
The DPS6 PowerShift 6-speed dual-clutch automated transmission fitted to 2012-2018 Ford Focus (and 2011-2019 Fiesta) is widely considered one of the worst transmission designs in modern automotive history. The dry dual-clutch design was fundamentally unsuited for stop-and-go driving, producing violent shuddering during low-speed acceleration, hesitation when pulling away from stops, unexpected surging, and abrupt harsh shifts. Ford knew of the defects from the start but concealed them and continued selling vehicles. The Vargas class action resulted in a settlement covering 2012-2016 Focus and 2011-2016 Fiesta models. Ford issued dozens of TSBs and software reflashes that repeatedly failed to fix the underlying mechanical problem. The TCM (Transmission Control Module) failures are a distinct but related issue. Repair options include clutch replacement (temporary fix), TCM reprogramming, or complete transmission replacement.
Common Symptoms
- Violent shuddering or juddering when accelerating from a stop
- Transmission hesitates or refuses to move in Drive for 1-3 seconds
- Unexpected lurch forward when releasing brakes at low speed
- Grinding or clunking between gear changes
- Transmission surging and jerking during low-speed driving
- Vehicle bucks and shakes at 15-35 mph (clutch slip zone)
- Transmission warning light or "Transmission Fault" message
- Loss of drive in one or both gears
- Delayed engagement from Park to Drive
How to Fix
Check fordtransmissionsettlement.com for class action settlement eligibility. Ford's warranty extended to cover repeated repairs. Updated clutch service parts: Focus uses F1FZ-7B546-B clutch (replaces BV6Z-7B546-F). Clutch shudder repair per TSB 16-0109; TCM repair/replacement per TSB 16-0129 and program 14M02. Software recalibration via IDS tool at dealer. For definitive fix: remanufactured DPS6 transmission. Many owners chose to pursue buyback via state Lemon Laws. The Vargas settlement class stops at the 2016 model year, so 2017-2018 owners are not covered by it.
Sources for this issue (3)
Ford Windstar · 1996–2003
The Ford Windstar equipped with the AX4S (1995-2000) and AX4N/4F50N (2001-2003) automatic transmissions suffers from widespread premature transmission failure. CarComplaints.com records 140 complaints for the 2000 model year alone, and 166 problems for the 2003 model year, making transmission failure the single most reported problem for the Windstar. The AX family of transmissions in the Windstar struggles with lubrication problems, harsh 1-2 and 2-1 gear changes, torque converter clutch issues, and catastrophic internal failures. The torque converter clutch solenoid is a particularly weak point, causing shuddering and codes P0741 and P1744. Average repair cost is $2,190 at 102,200 miles according to CarComplaints.com data. Many owners report needing a complete transmission replacement or rebuild, with costs ranging from $1,750 to $3,100.
Common Symptoms
- Harsh or jerky 1-2 and 2-1 gear shifts
- Transmission slipping or shuddering during acceleration
- Torque converter shudder at 40-55 mph
- Check engine light with transmission codes
- Delayed engagement when shifting from Park to Drive
- Transmission overheating warning
- Complete loss of forward gears
- Grinding or whining noise from transmission
How to Fix
For TCC shudder only (codes P0741/P1744), start with transmission fluid change and TCC solenoid replacement ($400-800). For complete transmission failure, remanufactured transmission replacement is the most common solution ($1,750-2,500 installed). Jasper and Ford Motorcraft remanufactured units are the most commonly recommended. Rebuild is an option at $2,000-3,100 but ensure the torque converter is also replaced. Preventive: change transmission fluid every 30,000 miles - the Windstar transmission runs hot and degrades fluid rapidly.
Sources for this issue (1)
Nissan Altima · 2013–2023
The CVT transmission is known for reliability issues including shuddering, jerking, and complete failure. Through class-action settlements, Nissan extended the CVT warranty on 2013-2016 and 2017-2018 Altimas from 60 months/60,000 miles to 84 months/84,000 miles. High-mileage CVTs are particularly at risk.
Common Symptoms
- Shuddering during acceleration
- Jerky or hesitant response
- Delayed engagement from stop
- Whining noise from transmission
- Complete loss of power
- Check engine light
How to Fix
Change CVT fluid regularly with Nissan NS-3. Check if vehicle is covered by Nissan extended CVT warranty. If shuddering, may need valve body or complete CVT replacement. Avoid aggressive driving to prolong CVT life.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- OEM 2013-2018 Altima 2.5L CVT service kit
2013-2018 Nissan Altima 2.5L QR25DE CVT; select exact year. Maintenance/contamination service only, not a cure for internal CVT damage.
- OEM 2013-2018 Altima 3.5L CVT service kit
Service cannot repair confirmed mechanical judder or belt/pulley damage.
- OEM 2019-2023 Altima 2.5L CVT service kit
Confirm year, drivetrain and VIN.
- OEM 2019-2023 Altima 2.0T CVT service kit
2019-2023 Nissan Altima 2.0T KR20DDET CVT for this card; verify exact year/VIN. Not for the 2.5L engine.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- TipChange CVT fluid regularly with Nissan NS-3.
- WarningThis is a high-severity issue - ignoring it can lead to costly repairs or safety concerns. Address it promptly.
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
Sources for this issue (2)
Nissan Rogue · 2014–2020
Nissan Versa · 2012–2021
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P0700 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 P0700 mean?
P0700 stands for "Transmission Control System Malfunction." P0700 is a general code indicating the transmission control module (TCM) has detected a fault somewhere in the transmission control system and has requested the check engine light be turned on. By itself it doesn't pinpoint the problem — it's an 'umbrella' code that tells you to look for additional, more specific transmission codes stored alongside it. The actual fault could be electrical, a sensor, a solenoid, or an internal transmission issue. You may notice harsh or delayed shifts, slipping, or the transmission going into a protective 'limp' mode.
What are the most common causes of P0700?
The most common causes of P0700 are: Stored companion transmission codes pointing to the real fault, Faulty shift solenoid or pressure control solenoid, Low, dirty, or degraded transmission fluid, Faulty transmission speed or input/output sensor, Wiring, connector, or ground problems at the transmission, Failing transmission control module (TCM), Internal transmission mechanical wear or clutch problems, Valve body fault or sticking valves. The specific cause varies by vehicle.
How much does it cost to fix P0700?
Repair costs for P0700 range from $5 to $20,000, depending on the vehicle and root cause.
Which vehicles are affected by P0700?
Au7o has documented P0700 across 182 vehicle models from 28 manufacturers: Acura, Audi, BMW, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Fiat, Ford, GMC, Honda, Hyundai, Jaguar, Jeep, Kia, MINI, Mercedes-Benz, Mitsubishi, Nissan, Porsche, RAM, Saab, Saturn, Subaru, Toyota, Volkswagen, Volvo.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.