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Self-tests 2026 firmware

PTC Compromised Rod Detection

Model3/tasks/TEST-SELF_VCRIGHT_X_PTC-COMPROMISED-ROD-DETECTION

Model 3 / Y

What this task does

Checks for inoperative Positive Temperature Coefficient (PTC) heater rods and stores the result in the Right Vehicle Controller (VCRIGHT) ECU. Allows the VCRIGHT to restore operation of the PTC heater by not turning on the inoperative rod. To clear the stored information in VCRIGHT, run this routine if the PTC heater is replaced.

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
Pre-2024 Model 3
Supported connection
Local connection and remote access
Vehicle state
Stationary · Drive; Stationary · Neutral; Stationary · Parked; Stationary · Reverse
Gateway diagnostic level
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

Model 3 / Y Intel · Firmware 2026.32.7
Vehicle coverage
Pre-2024 Model 3
Supported connection
Local connection and remote access
Vehicle state
Stationary · Drive; Stationary · Neutral; Stationary · Parked; Stationary · Reverse
Gateway diagnostic level
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

Related service tasks

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Self-tests

Ambient Sensor Test

This self test checks the ambient temperature sensor functionality

TEST-SELF_VCRIGHT_X_AMBIENT-TEMP

Model 3 / Y Model S / X (2021+)
Self-tests

Cabin Thermistor Test

This self test checks the cabin thermistor functionality controlled by the Right Vehicle Controller (VCRIGHT).

TEST-SELF_VCRIGHT_X_HVAC-CABIN-THERMISTORS

Model 3 / Y Model S / X (2021+)
Service procedures

Calibrate Right FOOTWELL LED

The procedure calibrates the right footwell LED light controlled by the Right Vehicle Controller (VCRIGHT). During calibration, the light might not illuminate.

PROC_VCRIGHT_RIGHT_CALIBRATE-FOOTWELL-LED

Model 3 / Y Model S / X (2021+)