DTC P0571-62: Brake Switch "A" Signal Compare Failure [11/2023 - ]: Description
This DTC is stored when the brake signal sent via direct line and the brake signal sent via CAN communication do not match.
| DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
| P0571-62 |
Brake Switch "A" Signal Compare Failure |
The brake signal sent via direct line and the brake signal sent via CAN communication do not match. (1-trip detection logic*) |
- Electronically controlled brake system
- Stop light switch assembly
- Certification ECU (smart key ECU assembly)
- Wire harness or connector
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DTC Output Confirmation Operation:
- Connect the cable to the negative (-) auxiliary battery terminal, release the brake pedal and wait at least 20 seconds. Then depress the brake pedal for 20 seconds or more.
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- *: Only detected while a malfunction is present and the ignition switch is ON.
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
- If there is a malfunction when the brake signal sent via direct line is on, the engine can be started by pressing the engine switch with the brake pedal released.
- If there is a malfunction when the brake signal sent via direct line is off, the engine cannot be started by pressing the engine switch with the brake pedal depressed.
- With the electrical key transmitter sub-assembly in the cabin, even if an engine start operation is performed, the engine does not start (the key indicator display is not displayed on the multi-information display). However, the engine can be started by turning the ignition switch to ACC and then pressing and holding it.
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RELATED DATA LIST AND ACTIVE TEST ITEMS
| DTC No. |
Data List and Active Test |
| P0571-62 |
Power Source Control
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