P0626 on Dodge: How to Diagnose & Fix
Generator Field "F" Terminal Circuit High
1 Dodge model · 1 documented issue · 1 critical
P0626 on Dodge by model: symptoms, diagnosis and fix
The 2011-2014 Dodge Challenger is the subject of two overlapping NHTSA safety recalls for sudden alternator failure, and CarComplaints.com ranks alternator failure among the worst-reported electrical problems on the 2012 model year (its lowest-rated year overall). The root cause is thermal fatigue of the alternator's internal silicon rectifier diodes: repeated heat cycling cracks the diodes, producing rapid, near-warningless failure that can manifest as no output, reduced output, or a fully shorted-to-ground condition. Recall 14V634 (filed October 2014, remedy began February 2015, Chrysler campaign P60) covers 2011-2014 Chrysler 300, Dodge Charger, Challenger and Durango plus 2012-2014 Jeep Grand Cherokee built April 22, 2010 to January 2, 2014 with the 3.6L Pentastar V6 and a 160-amp alternator -- roughly 435,000 vehicles. Recall 17V435 (filed November 2017, remedy began February 2018, campaign T36) expanded the population to vehicles with Electro-Hydraulic Power Steering (EHPS) and either the 3.6L V6 or 5.7L V8 HEMI equipped with 160-, 180-, or 220-amp alternators, built August 23, 2010 to July 4, 2014. When the alternator fails the engine can stall without warning, raising crash risk; the voltage collapse can also disable safety systems (ABS / electronic stability control warning lamps illuminate and the systems can drop out) and, on EHPS-equipped cars, cause loss of power-steering assist, making the vehicle hard to control. In a worst-case shorted condition the alternator can overheat and catch fire. CarComplaints owners report failures clustering around 40,000-55,000 miles -- typically just outside the 36,000-mile basic warranty -- with whining/hissing from the engine bay, flickering ABS and traction-control lights, dimming headlights and interior lights, burning smells, and in several cases visible smoke or fire before complete shutdown.
Common Symptoms
- Engine stalls or dies suddenly while driving, often with no warning
- Battery / charging warning light illuminates
- ABS and traction-control (ESC) warning lights flash on and off
- Headlights and interior/dashboard lights dim or flicker
- Loss of power-steering assist on EHPS-equipped cars (heavy, hard-to-turn wheel)
- High-pitched whining or hissing noise from the engine bay
- Burning smell, smoke, or in severe cases fire from the alternator
- Battery overheats, swells, or dies prematurely (collateral damage)
- Car cranks but will not start / repeated no-start
How to Fix
If your VIN is covered by recall 14V634 or 17V435, the repair is FREE at any Dodge/Chrysler dealer regardless of mileage or age -- check your VIN at nhtsa.gov/recalls or call Stellantis/Chrysler customer care at 1-800-853-1403 (reference campaign P60 or T36). Under 14V634 the dealer replaces the alternator outright; under 17V435 the dealer first inspects the alternator part number and replaces it only if it is one of the suspect units. Out of warranty and not covered by the recall (e.g. some 5.7L or higher-amp configurations), a standard alternator replacement runs about 2 hours of labor: budget roughly $300-$600 for a quality remanufactured or new unit and $150-$400 in labor, with full RepairPal shop estimates of about $800-$1,180 for the era. Owner-reported real-world bills span $500 to $1,290 (the high end including a battery the failing alternator damaged). Because a failing diode can dump unregulated voltage or overheat the battery, have the battery load-tested at the same time and address any flickering-light, ABS/ESC-warning, or burning-smell symptoms immediately rather than waiting -- a fully shorted alternator is a fire and stall hazard. Verify any aftermarket replacement is rated for your car's amperage (160/180/220A) and EHPS load.
Sources for this issue (2)
P0626 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 P0626 mean on a Dodge?
P0626 stands for "Generator Field "F" Terminal Circuit High." The control module detected a high-voltage (short-to-power or open) condition on the generator field 'F' terminal circuit. Signal voltage is above the expected range. On Dodge it is documented across 1 model: Challenger.
What are the most common causes of P0626?
The most common causes of P0626 are: Short to voltage in the 'F' terminal circuit, Open in the field circuit, Faulty alternator/regulator, Corroded/damaged connectors, Internal PCM fault. The specific cause varies by vehicle.
How much does it cost to fix P0626 on a Dodge?
Repair costs vary widely with the root cause and Dodge model; each issue on this page carries its own estimate where one is published.
Looking for P0626 on a different make?
View P0626 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.