TAS_a178 — Wade Fault

Full alert identifier: TAS_a178_wadeFault

Alert description

The Tesla Air Suspension (TAS) electronic control unit (ECU) detects Wade functionality is unavailable due to inability to keep the high voltage (HV) battery pack pressurized.

Potential impact

Wade functionality is not available.

Set condition

TAS ECU detects inability to support Wade functionality. Alert log signal data should provide more information on how the system was unable to pressurize the HV pack due to hardware issues related to airlines, pressure sensor, or valves.

Clear condition

Vehicle-power-state cycle from off to on.

Signals to check

These diagnostic fields are associated with TAS_a178. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
Blocked Or Open Airline Detected `TAS_a178_blockedOrOpenAirlineDetected`	—
Constant Pressure Check Failed `TAS_a178_constantPressureCheckFailed`	—
Hv Pack Pressure Invalid `TAS_a178_hvPackPressureInvalid`	—
Pack Pressure Derivative Too High `TAS_a178_packPressureDerivativeTooHigh`	—
Pack Pressure Timeout `TAS_a178_packPressureTimeout`	—
Reservoir Pressure Low `TAS_a178_reservoirPressureLow`	—
Scuba Valve Unavailable `TAS_a178_scubaValveUnavailable`	—
State `TAS_a178_state` 0 BLOCKED 1 IDLE 2 RESERVOIR PRESSURE CHECK 3 MAINTAIN PRESSURE 4 FILL 5 FILL ON HOLD 6 FAULTED	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of TAS_a178.