Chassis, generic

C0083 Tire Pressure Monitor Malfunction Indicator

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Covers the tyre-pressure-monitor indicator (TPMS lamp) as driven or monitored by the responsible module. Regulations distinguish a steady low-pressure warning from a flashing TPMS-malfunction indication; this code concerns the indicator path, set when the TPMS lamp circuit is open or shorted, the lamp does not respond, or the commanded and observed states disagree. A system that cannot monitor pressure, for example an indirect system that has lost its wheel-speed reference or a direct system missing sensor data, requests the malfunction indication, and a fault in that path sets this code. Indirect-TPMS patents describe deriving pressure from ABS wheel-speed signals, so a loss of that data can drive both a TPMS fault and this indicator code. No code-specific public bulletin was confirmed; the entry follows the SAE J2012 generic definition.

Likely causes

Open or shorted indicator circuit
TPMS cannot monitor, requests fault lamp
Failed indicator bulb or driver

Symptoms

  • TPMS indicator stuck on or flashing
  • Failed lamp self-check
  • Loss of tyre pressure warning

Repair estimate

DifficultyMediumDIY possible
Parts and labour€20–400
Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

tpms lamp

Related codes

C0077C0078C0082

References: en.wikipedia.org, patents.google.com.