Code ESP_a199 was reported by the “Stability control and ABS (ESP)” controller in the car. The letter “a” in the middle places it among entries of the alert type.
Had code ESP_a199 as well? Tell others how it turned out for you →
The electronic stability program — ESP, ABS, traction control and brake force distribution. These codes show up as warning lights and some assistance systems dropping out. The car still brakes, just without electronic help.
The most common type. The car logged the event and may have shown it on the screen. The range is wide — from something trivial that clears itself to something that needs attention.
This is how the fault is named inside the car's firmware. For codes without a description it is the most precise clue there is — the name itself says what the event is about.
The text below comes from Tesla's technical documentation. We leave it in the original English so that translation cannot shift its meaning.
Voltage across pins 25 and 38 on the ESP connector below specification
Voltage across pins 25 and 38 on the ESP connector meets specifications
More than one suspected wheel speed sensor failures occur at the same time for more than 500ms. A suspected wheel speed sensor failure is set in the following situation: Noise monitoring- slip monitoring- dynamic monitoring- monitoring of absent signal or monitoring of flat tire sets a suspicious flag.
Check connection integrity and power cycle, replace WSS if necessary.
Lost Communication With Drive Motor Control Module A: Message Timeout
ESP CAN - VCFRONT_espLVState message fault
This part is written by you. If you have had code ESP_a199, tell us when it appeared, what brought it on and how it ended — for the next person, one such sentence is often worth more than the entire service documentation.
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Comments are written by visitors to this site. They are not advice from Tesla or from TesList and we do not verify them — treat them as one person's experience with one particular car.
Copy it exactly, letter and number included. Photographing the screen is safest — codes often differ by a single digit, and mixing them up leads somewhere else entirely.
Some codes clear after a screen restart or after the car sits locked for a few hours. If the code does not come back, it was usually a one-off glitch.
A one-off entry and a code that appears after every drive are two different things. It helps a service centre enormously if you know exactly when it shows up.
With airbags, brakes, steering and high voltage there is no point waiting it out. With the other groups you can watch and see whether the code returns at all.
Error codes are only part of the picture. For cars on TesList you also see battery health pulled straight from the vehicle, plus a price calculator that works out from current listings what a given car is actually worth today.