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SCS_f027

f Fault

Code SCS_f027 was reported by the “Supercharger — stall control” controller in the car. The letter “f” in the middle places it among entries of the fault type.

Area of the car
Supercharger — stall control
Severity
Fault
Sequence number
27

What code SCS_f027 means

The control system of a Supercharger stall: voltage stages, isolation, cable temperature. Again these are charging infrastructure faults, not car faults. A large share of the numbers in this group are unused — spare slots in the firmware.

Severity — f

The more serious level. The affected component has shut down or is running in limp mode. These codes belong in a service centre.

Internal alert name

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.

SCS_f027_externalIsolationLow

Description from the service documentation

The text below comes from Tesla's technical documentation. We leave it in the original English so that translation cannot shift its meaning.

Alert may be shown on the supercharger while a car is charging. This alert may indicate an insulation breakdown or other loss of isolation resistance in one of the following:The DC cabling between the supercharger and the car.The DC cabling between the charge port and high voltage junction box (HVJB), If while charging, anywhere inside the vehicle's high voltage DC system.

What to do about it

01

Write down the whole code

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.

02

Try letting the car sleep and wake

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.

03

Watch whether it repeats

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.

04

Do not wait on safety systems

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.

Before you act on a code. This page is a reference dictionary, not a repair manual. It explains what an abbreviation means and what it relates to — it does not diagnose your car. The same code can have different causes, and its meaning also shifts between firmware versions. For anything involving brakes, steering, airbags or high voltage, go straight to a service centre.

Other codes from the same part of the car

SCS_a027Supercharger — stall controlexternal Isolation Lowa Alert SCS_a026Supercharger — stall controlinternal Isolation Lowa Alert SCS_a028Supercharger — stall controlisolation Rationalitya Alert SCS_a025Supercharger — stall controlinternal Isolation Faulta Alert SCS_a029Supercharger — stall controlVbat OVa Alert SCS_a024Supercharger — stall controlemergency Shutdowna Alert SCS_a030Supercharger — stall controlVbus OVa Alert SCS_a031Supercharger — stall controlIbat OCa Alert

Show all 128 codes in the SCS group →

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