C1201Engine control system fault (VSC switched off)

• Toyota/Lexus code · ABS / stability control
• Lights a warning lamp

How the car detects it

The engine computer has a fault of its own, so the skid control unit switches VSC and traction control off as a precaution: it can no longer rely on reducing engine power. This code points elsewhere; read and repair the engine codes first and it usually clears by itself afterwards. While this fault is stored, the skid control unit may switch off VSC (stability control) and traction control, and sometimes ABS; normal braking still works. Drive gently and have it checked.

What you may notice

• Check-engine light together with the VSC / slip light

Likely causes

• PossibleAny stored engine (P) code, for example a misfire or an EVAP fault
• RareEngine computer fault

Sources

• share.qclt.com › 0370010.pdf
• purefjcruiser.com › 0280012.pdf
• toyota-club.net › br_vsc.htm
• toyota-club.net › br_ecb_4d.htm

Backed by at least two independent sources.

From Obdaryn's Toyota/Lexus pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.