DTC P314A-828: Inverter Coolant Pump Speed Signal [11/2016 - ]: Description
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
Refer to the description for DTC P0C73-776.
Refer to DESCRIPTION
The inverter water pump assembly sends the inverter water pump speed (measured value) signal to the hybrid vehicle control ECU assembly. If the inverter water pump speed (measured value) signal is not sent to the hybrid vehicle control ECU assembly when the power switch is on (READY), this DTC is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P314A-828 | Inverter Coolant Pump Speed Signal | The inverter water pump speed signal is not sent to the hybrid vehicle control ECU assembly when the power switch is turned on (READY). (1 trip detection logic) |
|
Comes on | Master Warning Light: Comes on |
HINT:
- 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 inverter water pump assembly power source circuit is detected.
- A malfunction in the +B line is detected.
- A malfunction in hybrid vehicle control ECU assembly power source circuit is detected.
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P314A-828 |
|
RELATED ACTIVE TEST
| DTC No. | Active Test |
|---|---|
| P314A-828 | Activate the (Inverter) Water Pump |