Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2014 Mazda 5 TouringFACTORY OEM SERVICE PROCEDURE

Brake Override System Operation Inspection

NOTE:

If the brake override system operates normally after performing the following inspection, the PCM detects DTC P2299:00.

Start the engine and run it is idling.
Verify that the engine speed becomes less than 1, 100 rpm under the following conditions.
- Neutral (MTX)
- P or N position (ATX)
- Engine speed of 1, 150 rpm or more other than idle
- Brake pedal depressed
  - If the engine speed becomes less than 1, 100 rpm , clear the PCM DTC using the M-MDS. (System operation is normal.)
  - If the engine speed does not become less than 1, 100 rpm , inspect for the following parts, then repair or replace the malfunctioning part:
    - APP sensor (See ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION .)
    - Neutral switch (MTX) (See NEUTRAL SWITCH INSPECTION .)
    - Clutch switch (MTX) (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION .)
    - TR switch (ATX) (See TRANSAXLE RANGE (TR) SWITCH INSPECTION .)
    - Brake switch No. 1 (See BRAKE SWITCH INSPECTION .)
    - Brake switch No. 2 (See BRAKE SWITCH INSPECTION .)
    - Communication between PCM and TCM (ATX) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM] .)

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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