DTC P0C73-96: Motor Electronics Coolant Pump "A" Component Internal Failure [09/2023 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
The inverter water pump assembly transmits rotation speed information to the ECM. The ECM monitors the speed and detects malfunctions.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|
| P0C73-96 | Motor Electronics Coolant Pump "A" Component Internal Failure | The inverter water pump assembly revolution speed is abnormally high or low (or stopped) for 1 minute or more. (1 trip detection logic) |
|
Comes on | Engine | B |
|
HINT:
The inverter water pump assembly operates when the ignition switch is ON (READY).
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P0C73-96 | Engine
Hybrid Control
|
RELATED ACTIVE TEST
| DTC No. | Active Test |
|---|---|
| P0C73-96 | Control the Intercooler Water Pump |