Skip to content
Self-tests 2026 firmware

Test Left Side Repeater Light Connection

Coriander/tasks/TEST-SELF_VCBATT_L_SIDE-REPEATER

Model S / X (2021+)

What this task does

Tests if the left side repeater light is electrically connected. This routine confirms the Vehicle Battery Controller (VCBATT) can command the repeater and monitors current draw to verify proper electrical connection.

Vehicle & firmware coverage

Open a version to see its description, requirements, and input definitions. Hardware configuration and live vehicle checks also determine availability.

Model S / X (2021+) AMD · Firmware 2026.20.6.1
Vehicle coverage
2021+ Model S, 2021+ Model X
Supported connection
Local connection
Vehicle state
Stationary · Drive; Stationary · Neutral; Stationary · Parked; Stationary · Reverse
Gateway diagnostic level
No specific level listed

Procedure notes

The left side repeater may turn on briefly during the test (approximately 0.5 seconds).

Task inputs (0)

No user inputs are listed in this firmware.

Related service tasks

Browse all tasks →
Service procedures

12 Volt Battery Reset

Power cycles all of the eFuses on the VCFRONT and VCBATT ECUs and shuts off Sleep Bypass.

PROC_VCBATT_X_12V-RESET

Model S / X (2021+)
Service procedures

Clear left headlamp latched faults in factory

Clear all left headlamp factory latched faults that were triggering leftHeadlampFactoryFault alert

PROC_VCBATT_X_CLEAR-LEFT-HEADLAMP-LATCHED-FACTORY-FAULTS

Model S / X (2021+)