TAS2-A171
TAS2_a171_damperValveCompRR
What does TAS2-A171 mean?
Tesla alert code in the Thermal Architecture System v2 (TAS2) module. The rear right compression damping valve circuit is open, shorted, or returns an unexpected resistance. The damper valve is located on the damper body in the wheel well. Compression is the top valve and rebound is the bottom valve. The rear damper valves are connected directly to the subframe harness. The damper valves are driven by the Tesla Air Suspension ECU. Set: An open circuit, short circuit, or unexpected resistance value is detected on the valve after startup, or if the damper current deviates from the commanded current over time (indicating an unexpected circuit behavior). Clear: Drive rail cycle or ECU power cycle.
Original Description
The rear right compression damping valve circuit is open, shorted, or returns an unexpected resistance. The damper valve is located on the damper body in the wheel well. Compression is the top valve and rebound is the bottom valve. The rear damper valves are connected directly to the subframe harness. The damper valves are driven by the Tesla Air Suspension ECU. Set: An open circuit, short circuit, or unexpected resistance value is detected on the valve after startup, or if the damper current deviates from the commanded current over time (indicating an unexpected circuit behavior). Clear: Drive rail cycle or ECU power cycle.
Severity Notes
TAS2-A171 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.