P2E42
Hybrid/EV Electronics Coolant Pump B Performance
P2E42 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Electronics Coolant Pump B Performance. Common causes: coolant pump motor malfunction, problems in the electrical power supply circuit of the pump. Estimated repair cost: $133–389.
Symptoms
- Fault message on the instrument panel
- Reduced vehicle power in hybrid mode
- Overheating of electronic components
- Noises or humming from the coolant pump
- Enabling emergency system operation
Causes
- Coolant pump motor malfunction
- Problems in the electrical power supply circuit of the pump
- Air lock in the cooling system
- Contamination or loss of coolant properties
- Mechanical damage to the pump impeller
How to Fix
- Diagnostics of the pump electrical circuit (checking fuses, relays, wiring)
- Checking the functionality of the coolant pump
- Removing air pockets from the cooling system
- Replacing coolant according to manufacturer specifications
- Replacing the electric cooling pump if it malfunctions
Related codes
Error P2E42 by Vehicle Brand
FAQ
What does the P2E42 code mean?
P2E42 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Electronics Coolant Pump B Performance
What causes a P2E42 error code?
The most common causes of P2E42 include: Coolant pump motor malfunction; Problems in the electrical power supply circuit of the pump; Air lock in the cooling system; Contamination or loss of coolant properties.
How do I fix a P2E42 diagnostic trouble code?
To fix P2E42: Diagnostics of the pump electrical circuit (checking fuses, relays, wiring). Checking the functionality of the coolant pump. Removing air pockets from the cooling system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2E42?
Yes, but get it checked soon
How much does it cost to fix P2E42?
The estimated repair cost for P2E42 is $133–389. Actual cost depends on your vehicle, location, and labor rates.
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