What does code P1100 mean on Lexus vehicles?
The ECU detects a malfunction in the barometric pressure sensor circuit used to calculate air density and fuel mixture.
OBD-II Code Lexus
P1100 — Lexus — BARO Sensor Circuit Malfunction
The ECU detects a malfunction in the barometric pressure sensor circuit used to calculate air density and fuel mixture.
Common symptoms
- Check engine light
- increased fuel consumption
- loss of power
Possible causes
- Faulty BARO sensor
- damaged wiring
- ECM fault
Initial recommendation
Inspect BARO sensor operation and wiring connections.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
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