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Home >> Toyota >> 2015 >> Prius C One >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes (P2511-149 - U0424-537) & Circuit Tests) >> Hybrid Control System >> DTC P3000-389: Battery Control System [12/2014 - ] >> Description

DTC P3000-389: Battery Control System [12/2014 - ]: Description

The hybrid vehicle control ECU alerts the driver and performs fail-safe control based on error signals received from the battery smart unit.

This DTC is set if the HV battery is discharged excessively or the hybrid control system malfunctions.

HINT: 

If the HV battery voltage has dropped due to a malfunction in other components such as the inverter with converter assembly or the hybrid vehicle transaxle assembly, recharging the HV battery will restore the voltage. If the HV battery voltage has dropped excessively after the vehicle was left for a long time, the HV battery will need to be replaced.

DTC No. INF Code DTC Detection Condition Trouble Area
P3000 389 Malfunction is received from the battery voltage sensor
Voltage of a battery block drops drastically.
(1 trip detection logic)
  • Engine
  • Hybrid vehicle transaxle assembly
  • HV battery
RELATED DATA LIST

DTC No. Data List
P3000-389
  • Battery Block Vol -V01 to V16
  • State of Charge (All Bat)
  • Power Resource VB
  • Power Resource IB
  • Engine Revolution

The following items can be helpful when performing repairs:

Data List 

Operation History Data