Engine-Codes - Generic - P0C73

P0C73 - Motor Electronics Coolant Pump 'A' Control Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0C73 Possible Causes

  • Faulty Inverter cooling system
  • Inverter cooling system harness is open or shorted
  • Inverter cooling system circuit poor electrical connection
  • Inverter water pump assembly
  • Power management control ECU

How is the P0C73 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P0C73 code

Labor: 1.0

The cost to diagnose the P0C73 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0C73 Meaning

The inverter water pump assembly transmits rotation speed information to the power management control ECU (HV CPU). The power management control ECU (HV CPU) monitors the speed and detects malfunctions.

More Information

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Information for specific makes

  • P0C73 LEXUS Motor Electronics Coolant Pump 'A' Control Performance
  • P0C73 TOYOTA Motor Electronics Coolant Pump 'A' Control Performance

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