1. DTC P0571 description
The stoplight switch is installed to the brake pedal bracket. There are 2 stoplight switches, and the 2 switches are turned ON together when the brake pedal is depressed. If the ECM detects that the stoplight switch 1 and 2 signal input counts do not match, the DTC is set.
2. Condition for setting DTC P0571
Condition for running the DTC
- The battery voltage is 9 to 16 V.
- The ignition switch is ON.
- DTC P0606 is not set.
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P0606 ECM/PCM Processor".
Condition for setting the DTC
Any of the following are met:
- The ECM detects a correlation error between the stoplight switch 1 signal and the stoplight switch 2 signal 32 times or more for 157 seconds or more.
- The ECM detects that the stoplight switch 1 signal or stoplight switch 2 signal is ON for 15 minutes with a vehicle speed of 15 km/h {9 mph} or more.
3. Action taken when DTC P0571 sets
- The ECM illuminates the SVS indicator light. Refer to Action taken when DTC sets - Type C.
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".
- The ECM inhibits the cruise control.
4. Condition for clearing DTC P0571
- Refer to Condition for clearing the SVS indicator light/DTC - Type C.
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".