DTC P0A9B-11: Hybrid/EV Battery Temperature Sensor "A" Circuit Short to Ground; DTC P0A9B-15: Hybrid/EV Battery Temperature Sensor "A" Circuit Short to Auxiliary Battery or Open; DTC P0AC5-11: Hybrid/EV Battery Temperature Sensor "B" Circuit Short to Ground; DTC P0AC5-15: Hybrid/EV Battery Temperature Sensor "B" Circuit Short to Auxiliary Battery or Open; DTC P0ACA-11: Hybrid/EV Battery Temperature Sensor "C" Circuit Short to Ground; DTC P0ACA-15: Hybrid/EV Battery Temperature Sensor "C" Circuit Short to Auxiliary Battery or Open; DTC P0AE8-11: Hybrid/EV Battery Temperature Sensor "D" Circuit Short to Ground; DTC P0AE8-15: Hybrid/EV Battery Temperature Sensor "D" Circuit Short to Auxiliary Battery or Open; DTC P0BC2-11: Hybrid/EV Battery Temperature Sensor "E" Circuit Short to Ground; DTC P0BC2-15: Hybrid/EV Battery Temperature Sensor "E" Circuit Short to Auxiliary Battery or Open; DTC P0C33-11: Hybrid/EV Battery Temperature Sensor "F" Circuit Short to Ground; DTC P0C33-15: Hybrid/EV Battery Temperature Sensor "F" Circuit Short to Auxiliary Battery or Open [12/2019 - 11/2023]: Description
WARNING: This page is about a different variant/trim than selected.
The battery temperature sensors are provided at 6 locations of the HV battery. The resistance of the thermistor, which is built into each battery temperature sensor, varies in accordance with changes in the HV battery temperature. The lower the battery temperature, the higher the thermistor resistance. Conversely, the higher the temperature, the lower the resistance. The battery voltage sensor uses the battery temperature sensors to detect the HV battery temperature, and sends the detected value to the hybrid vehicle control ECU. Based on the results of this detection, the battery voltage sensor controls the blower fan. (The blower fan starts when the HV battery temperature rises above a predetermined level.)
Temperature Sensor Identification Cross Reference Table
| DTC Title Sensor | Battery Temperature Sensor | GTS Display |
|---|---|---|
| A | 0 | 1 |
| B | 1 | 2 |
| C | 2 | 3 |
| D | 3 | 4 |
| E | 4 | 5 |
| F | 5 | 6 |
HINT:
Use the reference table above to determine which battery temperature sensor each DTC corresponds to. For example, sensor A in the DTC title column is battery temperature sensor 0. This sensor is displayed as Hybrid Battery Temperature 1 in the Data List.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P0A9B-11 | Hybrid/EV Battery Temperature Sensor "A" Circuit Short to Ground | The battery temperature sensor is malfunctioning, its output voltage is lower than the specified value (short circuit) and the detected temperature is higher than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0A9B-15 | Hybrid/EV Battery Temperature Sensor "A" Circuit Short to Auxiliary Battery or Open | The battery temperature sensor is malfunctioning, its output voltage is higher than the specified value (short to +B or open) and the detected temperature is lower than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0AC5-11 | Hybrid/EV Battery Temperature Sensor "B" Circuit Short to Ground | The battery temperature sensor is malfunctioning, its output voltage is lower than the specified value (short circuit) and the detected temperature is higher than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0AC5-15 | Hybrid/EV Battery Temperature Sensor "B" Circuit Short to Auxiliary Battery or Open | The battery temperature sensor is malfunctioning, its output voltage is higher than the specified value (short to +B or open) and the detected temperature is lower than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0ACA-11 | Hybrid/EV Battery Temperature Sensor "C" Circuit Short to Ground | The battery temperature sensor is malfunctioning, its output voltage is lower than the specified value (short circuit) and the detected temperature is higher than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0ACA-15 | Hybrid/EV Battery Temperature Sensor "C" Circuit Short to Auxiliary Battery or Open | The battery temperature sensor is malfunctioning, its output voltage is higher than the specified value (short to +B or open) and the detected temperature is lower than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0AE8-11 | Hybrid/EV Battery Temperature Sensor "D" Circuit Short to Ground | The battery temperature sensor is malfunctioning, its output voltage is lower than the specified value (short circuit) and the detected temperature is higher than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0AE8-15 | Hybrid/EV Battery Temperature Sensor "D" Circuit Short to Auxiliary Battery or Open | The battery temperature sensor is malfunctioning, its output voltage is higher than the specified value (short to +B or open) and the detected temperature is lower than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0BC2-11 | Hybrid/EV Battery Temperature Sensor "E" Circuit Short to Ground | The battery temperature sensor is malfunctioning, its output voltage is lower than the specified value (short circuit) and the detected temperature is higher than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0BC2-15 | Hybrid/EV Battery Temperature Sensor "E" Circuit Short to Auxiliary Battery or Open | The battery temperature sensor is malfunctioning, its output voltage is higher than the specified value (short to +B or open) and the detected temperature is lower than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0C33-11 | Hybrid/EV Battery Temperature Sensor "F" Circuit Short to Ground | The battery temperature sensor is malfunctioning, its output voltage is lower than the specified value (short circuit) and the detected temperature is higher than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
| P0C33-15 | Hybrid/EV Battery Temperature Sensor "F" Circuit Short to Auxiliary Battery or Open | The battery temperature sensor is malfunctioning, its output voltage is higher than the specified value (short to +B or open) and the detected temperature is lower than the specified value. (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P0A9B-11 | Hybrid Battery Temperature 1 to 6 |
| P0A9B-15 | |
| P0AC5-11 | |
| P0AC5-15 | |
| P0ACA-11 | |
| P0ACA-15 | |
| P0AE8-11 | |
| P0AE8-15 | |
| P0BC2-11 | |
| P0BC2-15 | |
| P0C33-11 | |
| P0C33-15 |
HINT:
- After checking for the above DTCs, check the hybrid system Data List item "Hybrid Battery Temperature" using the GTS.
Temperature Displayed Malfunction Below -45°C (-49°F) Open or +B short circuit 95°C (203°F) or more GND short circuit - 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.