TAS2-A037
TAS2_a037_PWMshortRR
Also written as TAS2_A037 / TAS2 A037 / TAS2_a037_PWMshortRR / tas2_a037_pwmshortrr
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does TAS2-A037 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 right (RR) height sensor PWM signal has had a duty cycle equal to 0% for 50ms. A weighted counter increments by 10 for every FAULT_TYPE_PWM_SHORT_CIRCUIT and triggers the fault at a threshold of 50. Clear: The rear right (RR) height sensor PWM signal has had a duty cycle greater than 0% 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 right (RR) height sensor PWM signal has had a duty cycle equal to 0% for 50ms. A weighted counter increments by 10 for every FAULT_TYPE_PWM_SHORT_CIRCUIT and triggers the fault at a threshold of 50. Clear: The rear right (RR) height sensor PWM signal has had a duty cycle greater than 0% for 500ms. A weighted counter decrements (from threshold of 50) by 1 for every valid reading and clears the fault when it reaches 0.
Affected Tesla Models
What You May Notice
- Thermal Architecture System v2 alert: The alert checks for height sensor PWM faults every 10ms. A weighted counter increments by 10 for every faulted reading
- Reduced charging speed in cold weather or battery pre-conditioning required
- HVAC performance may be slightly affected
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Check coolant levels if accessible (Model S/X only)
- 3 Avoid DC fast charging until battery temperature normalizes
- 4 Schedule service if the alert appears in warm ambient conditions
Severity Notes
TAS2-A037 is an Alert in the Thermal Architecture System v2 system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.