PCS2_a021 — Power Rail Under Voltage
Full alert identifier: PCS2_a021_powerRailUnderVoltage
Alert description
The generated power rail (4.5V, 10V, 13.5V, 18V, or 48V) has gone lower than the allowed lower threshold
Potential impact
DCDC and AC Charging may be limited or unavailable.
Set condition
The power rail (4.5V, 10V, 13.5V, 18V or 48V) has gone lower than the allowed lower threshold
Clear condition
The power rail (4.5V, 10V, 13.5V, 18V or 48V) returns above the allowed lower threshold
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 |
|---|---|
10 V 0 Rail Under Voltage Threshold
PCS2_
|
V |
13 V 5 Rail Under Voltage Threshold
PCS2_
|
V |
18 V 0 Rail Under Voltage Threshold
PCS2_
|
V |
48 V 0 Rail Under Voltage Threshold
PCS2_
|
V |
4 V 5 Rail Under Voltage Threshold
PCS2_
|
V |
| Signal | Unit |
|---|---|
10 V 0 Rail Under Voltage Trip
PCS2_
|
— |
13 V 5 Rail Under Voltage Trip
PCS2_
|
— |
18 V 0 Rail Under Voltage Trip
PCS2_
|
— |
48 V 0 Rail Under Voltage Trip
PCS2_
|
— |
4 V 5 Rail Under Voltage Trip
PCS2_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PCS2_a021.