TAS2-A142
TAS2_a142_shortCircuitExhaust
Also written as TAS2_A142 / TAS2 A142 / TAS2_a142_shortCircuitExhaust / tas2_a142_shortcircuitexhaust
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-A142 mean?
Tesla alert code in the Thermal Architecture System v2 (TAS2) module. This alert checks for short circuit faults every 10ms. Voltage and current are measured by the Tesla Air Suspension Controller (TASC) when the exhaust valve is commanded with 12V. Set: The exhaust valve is commanded and both of the following are true: voltage is sensed below 2.4Vcurrent is sensed below 0.02A or above 1.3AClear: Single drive-rail cycle
Original Description
This alert checks for short circuit faults every 10ms. Voltage and current are measured by the Tesla Air Suspension Controller (TASC) when the exhaust valve is commanded with 12V. Set: The exhaust valve is commanded and both of the following are true: voltage is sensed below 2.4Vcurrent is sensed below 0.02A or above 1.3AClear: Single drive-rail cycle
Affected Tesla Models
What You May Notice
- Thermal Architecture System v2 alert: This alert checks for short circuit faults every 10ms. Voltage and current are measured by the Tesla Air Suspension Cont
- 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-A142 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.