P20D3
Exhaust Aftertreatment Fuel Injector B Control Circuit Low
P20D3 is an OBD-II diagnostic trouble code meaning: Exhaust Aftertreatment Fuel Injector B Control Circuit Low. Common causes: malfunction of injector b of the exhaust gas purification system, open or short circuit in control circuit. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable engine operation
- Increased emissions
Causes
- Malfunction of injector B of the exhaust gas purification system
- Open or short circuit in control circuit
- Wiring Harness Problems
- Malfunction of the control unit (ECU)
- Poor contact in connectors
How to Fix
- Check the continuity of the injector B control circuit
- Check resistance and operation of injector B
- Inspect the wiring harness for damage
- Check contacts in connectors
- If necessary, replace the injector or repair the chain
Related codes
Error P20D3 by Vehicle Brand
FAQ
What does the P20D3 code mean?
P20D3 is an OBD-II diagnostic trouble code that indicates: Exhaust Aftertreatment Fuel Injector B Control Circuit Low
What causes a P20D3 error code?
The most common causes of P20D3 include: Malfunction of injector B of the exhaust gas purification system; Open or short circuit in control circuit; Wiring Harness Problems; Malfunction of the control unit (ECU).
How do I fix a P20D3 diagnostic trouble code?
To fix P20D3: Check the continuity of the injector B control circuit. Check resistance and operation of injector B. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20D3?
Yes, but get it checked soon
How much does it cost to fix P20D3?
The estimated repair cost for P20D3 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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