MyTeslaMate
RCU family

RCU_a006_wakeLineOpen

Not Available

What does the RCU_a006_wakeLineOpen alert mean?

Redundant Control Unit (RCU) Low Voltage (LV) state CAN signal from Front Vehicle Controller (VCFRONT) reports LV is on while the wake line voltage is off.

What you'll see in your Tesla

  • Not Available

What triggers it

VCFRONT RCU LV state signal VCFRONT_iBoosterLVState is received as LV_ON while the hardwired wake line (RCU connector pin 4) is off for more than 2 minutes while there is no power supply hard undervoltage.

When it clears

VCFRONT RCU LV state signal matches hardwired wake line state at the start of the next power cycle.

Potential impact

The RCU may not power on or shut down correctly.

Affected models

Model Y 2025+

Track your Tesla's alerts automatically

Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.