All codes › P0403
P0403: Exhaust Gas Recirculation "A" Control Circuit
What it means
The EGR valve's electrical control circuit has an open or short.
Severity: Medium EGR won't operate; may ping.
Common causes
- Failed EGR solenoid
- Damaged wiring
- Corroded connector
- ECU driver fault
Most common causes first. Exact causes vary by make, model and engine.
Can I fix it myself?
Sometimes DIY. Check the EGR solenoid connector and resistance.
Repair cost
SEEDED ESTIMATE Roughly $210–$400
Most likely repair: egr valve. Diagnosis fees, taxes and other causes are not included.
| Line | Low | High | Basis |
|---|---|---|---|
| EGR valve | $164 | $164 | Typical listed retail range, source (single example listing ($163.99)) |
| Labor 0.5–1.5 hr | $50 | $240 | $100–$160/hr, shop survey |
⚠️ This is an editorial placeholder range for this type of repair. It is not based on real invoices or licensed pricing data yet. Real ranges will appear here once enough reader invoices for P0403 are verified.
Verified reader invoices for P0403: 0. Share your repair bill to help build real costs.
Tools that can read P0403
- ScanFixAI: Pro $29.99/mo or $249.99/yr
- OBDAI: Annual PRO bundle $299
- BlueDriver Pro Next-Gen: $119.95 list ($99.95 sale seen)
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