DTC P314A-31: Motor Electronics Coolant Pump "A" No Signal [11/2021 - 10/2023]: Description
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 power switch is turned on (READY).* (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
*: Either 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 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-31 |
|
RELATED ACTIVE TEST
| DTC No. | Active Test |
|---|---|
| P314A-31 | Activate the Inverter Water Pump |