P0C73 Code - Motor Electronics Coolant Pump 'A' Control Performance
Quick Answer
The inverter water pump assembly transmits rotation speed information to the power management control ECU (HV CPU). Common causes include Faulty Inverter cooling system, Inverter cooling system harness is open or shorted, Inverter cooling system circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0C73 indicates Motor Electronics Coolant Pump 'A' Control Performance.
- Common causes
- Common causes include Faulty Inverter cooling system, Inverter cooling system harness is open or shorted, Inverter cooling system circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0C73 Description
What are the Possible Causes of the DTC P0C73?
- 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 to Fix the DTC P0C73?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0C73 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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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
Frequently Asked Questions about P0C73 Code
1. What does OBDII code P0C73 indicate?
Code P0C73 indicates a performance issue with the control of the motor electronics coolant pump 'A,' which is responsible for cooling the electronic components in hybrid or electric vehicles.
2. What are the common symptoms of code P0C73?
Symptoms may include overheating of electronic components, reduced vehicle performance, warning lights on the dashboard, or the vehicle entering limp mode.
3. What causes code P0C73 to be triggered?
Common causes include a malfunctioning coolant pump, electrical issues such as wiring problems, low coolant levels, or a failed control module.
4. How do I diagnose the P0C73 code?
Diagnosis typically involves checking the coolant pump for proper operation, inspecting wiring and connectors for damage or corrosion, and verifying coolant levels.
5. Can I drive with code P0C73 active?
It’s not recommended to drive with this code active, as overheating of motor electronics can lead to severe damage or reduced performance.
6. How do I fix the P0C73 code?
Repairs may involve replacing the motor electronics coolant pump, repairing or replacing damaged wiring, refilling coolant, or addressing issues with the control module.
7. How much does it cost to repair code P0C73?
Repair costs can vary widely depending on the specific issue, but replacing a coolant pump typically costs between $200 and $600, excluding labor.
8. Can low coolant levels cause the P0C73 code?
Yes, low coolant levels can lead to insufficient cooling and trigger the P0C73 code.
9. What tools are needed to troubleshoot P0C73?
Essential tools include an OBDII scanner, a multimeter for testing electrical connections, and basic hand tools for inspecting and replacing components.
10. Is the P0C73 code specific to hybrid or electric vehicles?
Yes, this code is commonly associated with hybrid and electric vehicles where motor electronics require dedicated cooling systems.
Discuss the causes and fixes for P0C73 OBDII Code
-
Hei
Driver med feilsøk Toyota Yaris Hybrid 2015 mod. Med feilcode P0C73-Motorelektronik,vannpumpe A
-Effekt med feil.
Coden kommer tilbake etter 3-5 minutter etter at de er slettet.
Pumpen A går som normalt fordi om coden slår inn...-bilen oppfører seg også normalt..!!
Skulle gjerne fått noe svar på hva dette kan være.
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