TAS2-A040
TAS2_a040_PWMopenRL
What does TAS2-A040 mean?
Tesla alert code in the Thermal Architecture System v2 (TAS2) module. The alert checks for height sensor PWM faults every 10ms. A weighted counter increments by 10 for every faulted reading and triggers the fault at a threshold of 50. Set: The rear left (RL) height sensor PWM signal has had a duty cycle equal to 100% for 50ms. A weighted counter increments by 10 for every FAULT_TYPE_PWM_OPEN_CIRCUIT and triggers the fault at a threshold of 50. Clear: The rear left (RL) height sensor PWM signal has had a duty cycle less than 100% for 500ms. A weighted counter decrements (from threshold of 50) by 1 for every valid reading and clears the fault when it reaches 0.
Original Description
The alert checks for height sensor PWM faults every 10ms. A weighted counter increments by 10 for every faulted reading and triggers the fault at a threshold of 50. Set: The rear left (RL) height sensor PWM signal has had a duty cycle equal to 100% for 50ms. A weighted counter increments by 10 for every FAULT_TYPE_PWM_OPEN_CIRCUIT and triggers the fault at a threshold of 50. Clear: The rear left (RL) height sensor PWM signal has had a duty cycle less than 100% for 500ms. A weighted counter decrements (from threshold of 50) by 1 for every valid reading and clears the fault when it reaches 0.
Severity Notes
TAS2-A040 is an Alert in the Thermal Architecture System v2 system. It is generally safe to continue driving, but have it checked at your next scheduled service.