P045A
EGR B Control Circuit
A general electrical fault on EGR control circuit B — second EGR valve on engines with high-pressure and low-pressure EGR loops.
A general electrical fault on EGR control circuit B — second EGR valve on engines with high-pressure and low-pressure EGR loops.
Common causes
- high
Solenoid winding fault
One of the most commonly reported causes for this code — check this first.
Typical part cost: $130-880
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P045A mean?
P045A means "EGR B Control Circuit". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P045A?
solenoid winding fault — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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