P1F45
Hybrid/EV Electronics Coolant Pump Enable Circuit High Voltage
P1F45 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Electronics Coolant Pump Enable Circuit High Voltage. Common causes: electronics cooling pump failure, damage to the control circuit wiring harness. Estimated repair cost: $167–444.
Symptoms
- Malfunction warning on the dashboard
- Overheating of electronic components
- Hybrid system power reduction
- Increased noise from the cooling pump
- Hybrid system doesn't work smoothly
Causes
- Electronics cooling pump failure
- Damage to the control circuit wiring harness
- Short circuit in the circuit
- Problems with the hybrid system control module
- Corrosion of electrical connections
How to Fix
- Check the voltage in the pump control circuit
- Inspect the wiring harness for damage
- Check the resistance of the cooling pump
- Diagnose the hybrid system control module
- Replace the cooling pump if necessary
Related codes
FAQ
What does the P1F45 code mean?
P1F45 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Electronics Coolant Pump Enable Circuit High Voltage
What causes a P1F45 error code?
The most common causes of P1F45 include: Electronics cooling pump failure; Damage to the control circuit wiring harness; Short circuit in the circuit; Problems with the hybrid system control module.
How do I fix a P1F45 diagnostic trouble code?
To fix P1F45: Check the voltage in the pump control circuit. Inspect the wiring harness for damage. Check the resistance of the cooling pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1F45?
Do not drive — repair immediately
How much does it cost to fix P1F45?
The estimated repair cost for P1F45 is $167–444. Actual cost depends on your vehicle, location, and labor rates.
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