PCS_a040 — Dcdc Max Power Reached
Full alert identifier: PCS_a040_dcdcMaxPowerReached
Alert description
The Power Conversion System (PCS) electronic control unit (ECU) detects the DCDC converter reaches the maximum output power based on the hardware capability.
Potential impact
The low voltage (LV) battery may not charge properly, and the LV bus may begin loadshedding.
Set condition
The PCS ECU detects the DCDC converter reaches the maximum output power for more than 3 seconds.
Clear condition
The PCS ECU detects the DCDC converter is below the maximum output power for more than 30 seconds.
Signals to check
Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.
| Signal | Unit |
|---|---|
Dcdc Lv Output Current
PCS_
|
A |
Dcdc Lv Voltage
PCS_
|
V |
Dcdc Lv Voltage Target
PCS_
|
V |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PCS_a040.