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Thermal Coolant Flow Cycle (Parallel Bypass)

Model3/tasks/PROC_VCFRONT_X_THERMAL-COOLANT-FLOW-CYCLE-PARALLEL-BYPASS

What this task does

PRE-HEATPUMP ONLY: Starts the Thermal Coolant Flow Cycle with only parallel bypass mode. The routine will run for up to 5 minutes

Vehicle compatibility

Select your vehicle’s hardware to see task details, requirements, and inputs. Availability is confirmed after connection.

Model 3 / Y AMD
Vehicle coverage
2024+ Model 3, 2025+ Model Y, Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
No specific level listed

Task inputs (0)

This task has no listed user inputs.

Model 3 / Y Intel
Vehicle coverage
Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
No specific level listed

Task inputs (0)

This task has no listed user inputs.

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Service procedures

12V Reset

Power cycles all of the eFuses on the Vehicle Front Controller (VCFRONT) and shuts off Sleep Bypass.

PROC_VCFRONT_X_12V-RESET

Model 3 / Y
Self-tests

Active Louver Self Test

Performs louver connection check. Will only move the louver through partial range of motion.

TEST-SELF_VCFRONT_X_ACTIVE-LOUVER

Model 3 / Y
Self-tests

Ambient Sensor Test

Tests for power, connection, and communication of the ambient sensor controlled by the Front Vehicle Controller (VCFRONT).

TEST-SELF_VCFRONT_X_AMBIENT-TEMP

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

Battery Coolant Pump Test

Tests for power, connection, and communication of the battery coolant pump controlled by the Front Vehicle Controller (VCFRONT).

TEST-SELF_VCFRONT_X_COOLANT-PUMP-BATTERY

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