Service procedures
RCU Bleed Front Calipers
Pressurizes the Front brake circuits from RCU motor.
PROC_RCU_BLEED-CALIPER
Model 3 / Y
Communication checks
2026 firmware
Redundant Control Unit CAN Communication
Gen3/tasks/PING-TP_RCU
What this task does
Tests communication with the Redundant Control Unit (RCU) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).
Vehicle & firmware coverage
Open a version to see its description, requirements, and input definitions. Hardware configuration and live vehicle checks also determine availability.
Model 3 / Y AMD · Firmware 2026.32.3
- Vehicle coverage
- 2025+ Model Y
- Supported connection
- Local connection
- Vehicle state
- Stationary · Parked
- Gateway diagnostic level
- No specific level listed
Procedure notes
When communication is established, the test will succeed. If the test fails, inspect wiring and ensure ECU is powered.
Task inputs (0)
No user inputs are listed in this firmware.
Related service tasks
Browse all tasks →
Self-tests
RCU Pedal Travel Sensor Read
Read RCU external pedal travel sensor values (EOL, raw, SENT)
TEST-SELF_RCU_READ-PEDAL-TRAVEL-SENSOR
Model 3 / Y
Self-tests
RCU Pressure Sensor Read
Read RCU pressure sensor values (EOL, raw, SENT)
TEST-SELF_RCU_READ-PRESSURE-SENSOR
Model 3 / Y
ECU resets
RCU UDS ECU Reset
Resets the Redundant Control Unit (RCU) Electronic Control Unit (ECU). Reset is executed via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).
TEST-RESET_RCU
Model 3 / Y