Volvo (and Mack)
Volvo fault code
Volvo Fault Code P20CA00: Reductant Injection Air Pressure Leakage
P20CA00 on Volvo (and Mack) engines means: Reductant Injection Air Pressure Leakage.
Code details
- Manufacturer
- Volvo (and Mack)
- Applies to
- Volvo D13 (2017–2020)
- Fault code
- P20CA00
- Truck models in source
- Volvo VNL, VNR, VHD, VAH
What to do next
- Read active and inactive codes with the OEM service tool and note the occurrence count.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
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Source: Volvo D13 2017–2020 fault code list (Diesel Laptops). See also OBD-II codes.