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Home >> Toyota >> 2018 >> Prius Four >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Nickel Metal Hydride) - Diagnostic Codes (2 Of 9) >> HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY) >> DTC P0A81-96: Hybrid/EV Battery Cooling Fan 1 Component Internal Failure [11/2015 - 12/2018] >> Description

DTC P0A81-96: Hybrid/EV Battery Cooling Fan 1 Component Internal Failure [11/2015 - 12/2018]: Description

Refer to the description for DTC P0A81-11.

Refer to DESCRIPTION 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A81-96 Hybrid/EV Battery Cooling Fan 1 Component Internal Failure The battery cooling blower assembly is malfunctioning and the actual speed is not within the specified range of the target speed calculated by the ECU.*
*: This DTC is not stored when "Hybrid Battery Cooling Fan 1 Frequency" is excessively low or high.
(1 trip detection logic)
  • Battery cooling blower assembly
  • Battery voltage sensor
  • Hybrid vehicle control ECU
  • No. 1 HV battery intake filter
  • No. 1 Hybrid battery intake duct
  • Wire harness or connector
Does not come on Master Warning Light:
Comes on
RELATED DATA LIST

DTC No. Data List
P0A81-96
  • Hybrid Battery Cooling Fan 1 Drive Request
  • Hybrid Battery Cooling Fan 1 Drive Status
  • Hybrid Battery Cooling Fan 1 Frequency

The following items can be helpful when performing repairs:

Data List 

HINT: 

"Hybrid Battery Cooling Fan 1 Frequency" is detected when the battery cooling blower assembly is operating and its value changes in proportion to the battery cooling blower assembly rotation speed.