Mazda CX-5 Service & Repair Manual: Barometric Pressure (Baro) Sensor

Mazda CX-5 Service & Repair Manual / Engine / Control / Barometric Pressure (Baro) Sensor

Purpose/Function

Detects the BARO as basic information for mainly determining the fuel injection amount.
Detects the BARO and inputs it to the PCM as a BARO signal.

Construction

Built into the PCM.
A piezoelectric element has been adopted for detecting the BARO.

Operation

Inputs the signal, which fluctuates according to the BARO, to the PCM.

BARO sensor characteristic

Fail-safe


DTC No.	Fail-safe function
P2228:00	Fixes the barometric pressure for the engine control at 101.32 kPa {759.96 mmHg, 29.920 inHg}.
P2229:00	Fixes the barometric pressure for the engine control at 101.32 kPa {759.96 mmHg, 29.920 inHg}.

Barometric Pressure (Baro) Sensor Inspection

Voltage Inspection NOTE: Because the BARO sensor is integrated in the PCM, replacing the BARO sensor includes replacement of the PCM. 1. Connect the M-MDS to the DLC?2. 2. Switch t ...

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1. Set the front wheels straight ahead. CAUTION: The clock spring will break if over?wound. Do not forcibly turn the clock spring. 2. Turn the clock spring clockwise until it stops. ...

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