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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 114 (Hybrid Control System (AWD) - Diagnostic Codes (2 Of 6)) >> HYBRID CONTROL SYSTEM (for AWD) >> DTC P0A9B-1C: Hybrid/EV Battery Temperature Sensor "A" Voltage Out of Range; DTC P0AC5-1C: Hybrid/EV Battery Temperature Sensor "B" Voltage Out of Range; DTC P0ACA-1C: Hybrid/EV Battery Temperature Sensor "C" Voltage Out of Range; DTC P0AE8-1C: Hybrid/EV Battery Temperature Sensor "D" Voltage Out of Range; DTC P0BC2-1C: Hybrid/EV Battery Temperature Sensor "E" Voltage Out of Range; DTC P0C33-1C: Hybrid/EV Battery Temperature Sensor "F" Voltage Out of Range [12/2019 - 11/2023] >> Description

DTC P0A9B-1C: Hybrid/EV Battery Temperature Sensor "A" Voltage Out of Range; DTC P0AC5-1C: Hybrid/EV Battery Temperature Sensor "B" Voltage Out of Range; DTC P0ACA-1C: Hybrid/EV Battery Temperature Sensor "C" Voltage Out of Range; DTC P0AE8-1C: Hybrid/EV Battery Temperature Sensor "D" Voltage Out of Range; DTC P0BC2-1C: Hybrid/EV Battery Temperature Sensor "E" Voltage Out of Range; DTC P0C33-1C: Hybrid/EV Battery Temperature Sensor "F" Voltage Out of Range [12/2019 - 11/2023]: Description

WARNING: This page is about a different variant/trim than selected.

These DTCs will be stored if the difference between the maximum and minimum output of each battery temperature sensor exceeds a certain amount and if the output of one battery temperature sensor deviates from that of the other sensors.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A9B-1C Hybrid/EV Battery Temperature Sensor "A" Voltage Out of Range The performance of battery temperature sensor 0 is abnormal; the difference in output between it and other battery temperature sensors is excessively large.
(1 trip detection logic)
  • Battery voltage sensor
  • Hybrid battery thermistor (battery temperature sensor)
  • Wire harness or connector
Comes on Master Warning:
Comes on
P0AC5-1C Hybrid/EV Battery Temperature Sensor "B" Voltage Out of Range The performance of battery temperature sensor 1 is abnormal; the difference in output between it and other battery temperature sensors is excessively large.
(1 trip detection logic)
  • Battery voltage sensor
  • Hybrid battery thermistor (battery temperature sensor)
  • Wire harness or connector
Comes on Master Warning:
Comes on
P0ACA-1C Hybrid/EV Battery Temperature Sensor "C" Voltage Out of Range The performance of battery temperature sensor 2 is abnormal; the difference in output between it and other battery temperature sensors is excessively large.
(1 trip detection logic)
  • Battery voltage sensor
  • Hybrid battery thermistor (battery temperature sensor)
  • Wire harness or connector
Comes on Master Warning:
Comes on
P0AE8-1C Hybrid/EV Battery Temperature Sensor "D" Voltage Out of Range The performance of battery temperature sensor 3 is abnormal; the difference in output between it and other battery temperature sensors is excessively large.
(1 trip detection logic)
  • Battery voltage sensor
  • Hybrid battery thermistor (battery temperature sensor)
  • Wire harness or connector
Comes on Master Warning:
Comes on
P0BC2-1C Hybrid/EV Battery Temperature Sensor "E" Voltage Out of Range The performance of battery temperature sensor 4 is abnormal; the difference in output between it and other battery temperature sensors is excessively large.
(1 trip detection logic)
  • Battery voltage sensor
  • Hybrid battery thermistor (battery temperature sensor)
  • Wire harness or connector
Comes on Master Warning:
Comes on
P0C33-1C Hybrid/EV Battery Temperature Sensor "F" Voltage Out of Range The performance of battery temperature sensor 5 is abnormal; the difference in output between it and other battery temperature sensors is excessively large.
(1 trip detection logic)
  • Battery voltage sensor
  • Hybrid battery thermistor (battery temperature sensor)
  • Wire harness or connector
Comes on Master Warning:
Comes on
RELATED DATA LIST

DTC No. Data List
P0A9B-1C Hybrid Battery Temperature 1 to 6
P0AC5-1C
P0ACA-1C
P0AE8-1C
P0BC2-1C
P0C33-1C

HINT: 

If the vehicle is left as is for 24 hours, the value of "Hybrid Battery Temperature" will be almost the same as the ambient temperature.

The following items can be helpful when performing repairs:

Data List