The service task reference · 2026
Find the procedure. Understand what it does.
Explore diagnostic tests and repair tasks you can run with Tesware on compatible vehicles.
1,357
service tasks
2026 firmware
Model 3, Y, S & X
1,357 tasks Showing 1345–1357
Browse by name, A–Z
Passes if low fluid level is detected. Fails if switch is disconnected or fluid level is not low.
TEST-SELF_VCFRONT_X_WASHER-FLUID-LEVEL-SWITCH
Tests the electrical connection between with the windshield washer fluid pump and the level switch controlled by the Front Vehicle Controller (VCFRONT).
TEST-SELF_VCFRONT_X_WASHER
Passes if the windshield washer fluid pump is connected. Fails if no load is detected.
TEST-SELF_VCBATT2_X_WASHPUMP
Passes if the windshield washer fluid pump is connected. Fails if no load is detected.
TEST-SELF_VCFRONT_X_WASHPUMP
Tests the windshield wiper heater is electrically connected and operating as expected. This routine will perform a 100ms load test and measure current draw.
TEST-SELF_VCRIGHT_X_WIPER-HEATER
Tests for power, connection, and communication of the wiper heater controlled by the Front Battery Controller (VCBATT2).
TEST-SELF_VCBATT2_X_WIPER-HEATER
Tests for power, connection, and communication of the wiper heater controlled by the Front Vehicle Controller (VCFRONT).
TEST-SELF_VCFRONT_X_WIPER-HEATER
This check verifies that the wiper heaters turn on and heat up when triggered.
PROC_CID_FRONT_WIPER-HEATERS
This test turns wiper heaters off.
PROC_CID_FRONT_WIPER-HEATERS-OFF
After a windshield wiper module replacement, this routine runs all required tasks.
PROC_WIPER_X_POST-REPLACEMENT-PROCEDURES
Tests the wireless charger for power and connection. When communication and connection are established, the test will succeed. If the test fails, inspect wiring and make sure the wireless charger is powered.
PING-BASH_WIRELESS-CHARGER
This routine will write or read the pyro data to/from the Battery Management System (BMS). Important: - A new battery-powered hybrid pyro or thermal/sand fuse should never be installed in the HV battery. See Article 6239500 for more details. - It is important to only update the type when a new self-powered hybrid pyro has been installed or when a sand fuse has been physically confirmed to be installed and the BMS needs to be updated.
PROC_BMS_X_PYROFUSE-READWRITE-TYPE-YEAR-MONTH
This routine allows one to write or read the BMB ASIC type to the HVBMS and HVP ECUs. See Toolbox Article 7761700 for more details regarding how to determine the correct BMB ASIC type to write, if needed.
PROC_HVC_X_BMB-ASIC-TYPE
Descriptions and input definitions come from Tesla’s 2026 vehicle firmware. This catalog includes tasks covered by Tesware’s current service access. Each task page lists the vehicle and firmware versions in which it was found. The connected vehicle confirms whether a task can run.
Cybertruck is not included in this 2026 reference.