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Service procedures 2026 firmware

TEST_REAR_LIGHTS

ModelX/tasks/PROC_BCREAR_REAR_TEST-REAR-LIGHTS

What this task does

A all-in-one test for the exterior lights on the Model X. During the test, all of the front exterior lights will illuminate for 5 seconds and the front body controller will look for any errors. Pass or fail results will be returned for every light. Note: the front park lights (hockey sticks) and turn signals will turn on at the same time and the color will be peach (mix of orange and white). This is expected.

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 (legacy) Legacy infotainment · Firmware 2026.14.6
Vehicle coverage
Pre-2021 Model X
Supported connection
Local connection
Vehicle state
Stationary · Neutral; Stationary · Parked
Gateway diagnostic level
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

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Communication checks

BCREAR CAN Communication

Tests communication with the Body Controller - Rear (BCREAR) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_BCREAR

Model S / X (legacy)
Service procedures

Lift Gate Anti-Pinch Test (Left)

Tests the left side anti-pinch functionality on the lift gate by monitoring the BCREAR_plgLeftAndMidPinchStatus CAN signal.

PROC_BCREAR_L_LFT-ANTI-PINCH-LEFT

Model S / X (legacy)
Service procedures

Lift Gate Anti-Pinch Test (Right)

Tests the right side anti-pinch functionality on the lift gate by monitoring the BCREAR_plgRightPinchStatus CAN signal.

PROC_BCREAR_R_LFT-ANTI-PINCH-RIGHT

Model S / X (legacy)
Diagnostic tests

Liftgate Anti-Pinch Connection Test

This test will run a routine on the BCREAR that will report whether the Power Liftgate (PLG) anti-pinch strips are disconnected. This test can only detect over all disconnection and will not be able to check if sections of the pinch strip are faulty.

TEST_BCREAR_REAR_LFT-ANTI-PINCH-CONNECTION-TEST

Model S / X (legacy)