THC-W0042
THC_w0042_tempAuxHvacEvapRange
Also written as THC_W0042 / THC W0042 / THC_w0042_tempAuxHvacEvapRange / thc_w0042_tempauxhvacevaprange
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 THC-W0042 mean?
Tesla warning code in the THC (THC) module. The THC_w0042_tempAuxHvacEvapRange alert shall be set if:The value of the auxiliary HVAC evaporator temperature sensor is <= 100�C OR >= -40�C,The Thermal Controller (THC) is initialized.The THC_w0042_tempAuxHvacEvapRange alert shall be cleared if:The value of the auxiliary HVAC evaporator temperature sensor is > 100�C AND < -40�C.The Thermal Controller (THC) is uninitialized.
Original Description
The THC_w0042_tempAuxHvacEvapRange alert shall be set if:The value of the auxiliary HVAC evaporator temperature sensor is <= 100�C OR >= -40�C,The Thermal Controller (THC) is initialized.The THC_w0042_tempAuxHvacEvapRange alert shall be cleared if:The value of the auxiliary HVAC evaporator temperature sensor is > 100�C AND < -40�C.The Thermal Controller (THC) is uninitialized.
Affected Tesla Models
What You May Notice
- THC alert: The THC_w0042_tempAuxHvacEvapRange alert shall be set if:The value of the auxiliary HVAC evaporator temperature sensor i
- Touchscreen may show an error for one or more apps or settings
- Feature may restore itself after a reboot
How to Diagnose and Resolve
- 1 Perform a soft reboot (hold both scroll wheels for ~10 seconds)
- 2 Check for pending OTA software updates
- 3 If the issue persists, schedule a service appointment
Severity Notes
THC-W0042 is a Warning in the THC system. Schedule service soon. Monitor your vehicle for additional warnings.