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 let it idle.
Verify that the engine speed becomes less than 1, 200 rpm under the following conditions.
- Neutral (MTX)
- N position (ATX)
- Engine speed of 3, 000 rpm or more with accelerator pedal depressed
- Brake pedal depressed
  - If the engine speed becomes approx. 1, 200 rpm, clear the PCM DTC using the M-MDS. (System operation is normal.)
  - If the engine speed does not become approx. 1, 200 rpm, inspect for the following parts, then repair or replace the malfunctioning part:
- APP sensor (See ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION)] .)
- Neutral sensor (MTX) (See NEUTRAL SENSOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION)] .)
- Brake switch (See BRAKE SWITCH INSPECTION .)
- Communication between PCM and TCM (ATX) (Refer to [MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] ] in service information.)