What does code P1100 mean?

Q: What does code P1100 mean?

BARO Sensor Circuit. P1100 on Toyota vehicles indicates that the engine control module has detected an abnormal signal from the barometric pressure sensor circuit, which measures atmospheric pressure for altitude compensation. The computer compares the BARO sensor voltage against expected values and sets this code when the signal falls outside the normal operating range or is inconsistent with other pressure sensors.

DTC codes / Toyota codes / P1100

P1100 · ToyotaBARO Sensor Circuit

P1100 on Toyota vehicles indicates that the engine control module has detected an abnormal signal from the barometric pressure sensor circuit, which measures atmospheric pressure for altitude compensation. The computer compares the BARO sensor voltage against expected values and sets this code when the signal falls outside the normal operating range or is inconsistent with other pressure sensors.

SystemPowertrain

Code typeToyota specific

SeverityLow

Fix difficultyIntermediate

AreaFuel and air metering

Guidance is general and written for Toyota vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.