| DTC P0571:00 |
Brake switch circuit problem |
| DETECTION CONDITION |
- The PCM monitors changes in input voltage for brake switch No.1 and No.2. If the PCM detects that both brake switches No.1 and No.2 remain on or off for 15 s
, the PCM determines that the brake switch circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (other).
- The MIL does not illuminate.
- FREEZE FRAME DATA (Mode 2) /Snapshot data is not available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
NOTE:
- Inspect the brake switch with it installed to the brake pedal, otherwise the brake switch may not operate normally. If the brake switch is removed from the brake pedal, replace the brake switch with a new one.
- Brake switch connector or terminal malfunction
- Open circuit in wiring harness between brake switch terminal B and body ground
- Short to ground in wiring harness between brake switch terminal C and PCM terminal 1AF
- PCM connector or terminal malfunction
- Short to power supply in wiring harness between brake switch terminal C and PCM terminal 1AF
- Open circuit in wiring harness between brake switch terminal C and PCM terminal 1AF
- Brake switch No.2 malfunction
- PCM malfunction
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