PACCAR (Kenworth & Peterbilt)
PACCAR fault code
SPN 3516
PACCAR Fault Code P3824: DEF Quality – DEF Concentration Too High
P3824 on PACCAR (Kenworth & Peterbilt) engines means: DEF Quality – DEF Concentration Too High.
Code details
- Manufacturer
- PACCAR (Kenworth & Peterbilt)
- Applies to
- PACCAR MX-13 (2017–2020)
- Fault code
- P3824
- J1939 SPN
- 3516
- Truck models in source
- Kenworth T680, T880, W900, T800; Peterbilt 579, 389, 567, 367
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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Related fault codes
- PACCAR Fault Code P3822 — DEF Quality – DEF Concentration Too Low
- International Fault Code SPN 3516 FMI 10 — Aftertreatment 1 Diesel Exhaust Fluid Concentration: Abnormal Rate Of Change
- International Fault Code SPN 3516 FMI 12 — Aftertreatment 1 Diesel Exhaust Fluid Concentration: Bad Intelligent Device Or Component
- International Fault Code SPN 3516 FMI 15 — Aftertreatment 1 Diesel Exhaust Fluid Concentration: Data Valid But Above Normal Operating Range – Least Severe Level
- International Fault Code SPN 3516 FMI 3 — Aftertreatment 1 Diesel Exhaust Fluid Concentration: Voltage Above Normal, Or Shorted To High Source
- International Fault Code SPN 3516 FMI 9 — Aftertreatment 1 Diesel Exhaust Fluid Concentration: Abnormal Update Rate
Source: PACCAR MX-13 2017–2020 fault code list (Diesel Laptops). See also OBD-II codes.