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.
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HOMESERVICE MANUALSTOYOTA2025HIGHLANDER XLE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM (T24A-FTS) - DIAGNOSTIC CODES (06 OF 11)SFI SYSTEMDTC P0606-09: CONTROL MODULE PROCESSOR (BRAKE OVERRIDE SYSTEM OUTPUT SIGNAL) COMPONENT FAILURE [10/2022 - ]DESCRIPTION
2025 Toyota Highlander XLE, FWD
DTC P0606-09: Control Module Processor (Brake Override System Output Signal) Component Failure [10/2022 - ]: Description
2025 Toyota Highlander XLE, FWDSECTION Description
The ECM calculates and compares the accelerator opening angle command value used for control and the value used for monitoring, after corrected by the brake override system.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
|---|---|---|---|---|---|
| P0606-09 | Control Module Processor (Brake Override System Output Signal) Component Failure | Output of the accelerator opening command value after corrected by the brake override system used for control is more excessive than that of the accelerator opening angle command value after corrected by the brake override system repairs used for monitoring (1 trip detection logic). | ECM | Comes on | SAE Code: P0606 |
RENDER: 1.0x
NO RELATED
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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.