PCS-A098
PCS_a098_gridFreqDroopDetectedSilent
Also written as PCS_A098 / PCS A098 / PCS_a098_gridFreqDroopDetectedSilent / pcs_a098_gridfreqdroopdetectedsilent
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does PCS-A098 mean?
Tesla alert code in the Power Conversion System (PCS) module. High DC offset present on charger output current sensor when charging is not enabled Charger output current sensor offset exceeds threshold for more than three seconds while charging is inactive Charger output current sensor offset is below clear threshold for more than 500ms PCS output under-voltage detected while being commanded to charge Charger DC output voltage is below minimum output voltage threshold PCS charging input over-frequency Charger AC input frequency exceeds maximum frequency threshold for more than one second Charger AC input frequency is below maximum frequency threshold PCS DCDC is not able to regulate LV output DCDC converter 12V support regulator detects irrational condition Charger DC output voltage exceeds maximum output voltage threshold PCS DCDC detects pack voltage is lower than the safety threshold to continue its 12V support operation DCDC converter detects that high voltage bus voltage is below undervoltage threshold
Original Description
High DC offset present on charger output current sensor when charging is not enabled Charger output current sensor offset exceeds threshold for more than three seconds while charging is inactive Charger output current sensor offset is below clear threshold for more than 500ms PCS output under-voltage detected while being commanded to charge Charger DC output voltage is below minimum output voltage threshold PCS charging input over-frequency Charger AC input frequency exceeds maximum frequency threshold for more than one second Charger AC input frequency is below maximum frequency threshold PCS DCDC is not able to regulate LV output DCDC converter 12V support regulator detects irrational condition Charger DC output voltage exceeds maximum output voltage threshold PCS DCDC detects pack voltage is lower than the safety threshold to continue its 12V support operation DCDC converter detects that high voltage bus voltage is below undervoltage threshold
Affected Tesla Models
What You May Notice
- Power Conversion System alert: High DC offset present on charger output current sensor when charging is not enabled Charger output current sensor offse
- DC-DC converter issue may affect 12V system (lights, accessories)
- Alert shown in the Tesla app
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Check if 12V accessories (lights, door handles) are behaving normally
- 3 Schedule a Tesla Service appointment for PCS inspection
Severity Notes
PCS-A098 is an Alert in the Power Conversion System system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.