DTC P314A-31: Motor Electronics Coolant Pump "A" No Signal [06/2020 - ]: Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2025 Toyota RAV4, 2024 Toyota RAV4, 2023 Toyota RAV4, 2022 Toyota RAV4, and 2021 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
Refer to the description for DTC P0C73-96.
Refer to DESCRIPTION
The inverter water pump assembly sends the inverter water pump speed (measured value) signal to the hybrid vehicle control ECU assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P314A-31 | Motor Electronics Coolant Pump "A" No Signal | The inverter water pump speed signal is not sent to the hybrid vehicle control ECU assembly when the ignition switch is turned to ON (READY).* (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
*: Any of the following conditions is met.
- A malfunction (open, short to +B or short to ground) in the speed signal line from the inverter water pump assembly to the hybrid vehicle control ECU assembly is detected.
- A malfunction in the +B line is detected.
- A malfunction in the inverter water pump assembly power source circuit is detected.
- A malfunction in hybrid vehicle control ECU assembly power source circuit is detected.
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P314A-31 |
|
RELATED ACTIVE TEST
| DTC No. | Active Test |
|---|---|
| P314A-31 | Activate the Inverter Water Pump |