PACCAR (Kenworth & Peterbilt)
PACCAR fault code
SPN 168 / FMI 18
PACCAR Fault Code P0562: PCI ECU Power Supply – Data Valid But Too Low on ECU (D420) Pin (B60) or Pin (B61) or Pin (B62)
P0562 on PACCAR (Kenworth & Peterbilt) engines means: PCI ECU Power Supply – Data Valid But Too Low on ECU (D420) Pin (B60) or Pin (B61) or Pin (B62). The failure mode (FMI 18) is “data valid but below normal range (moderately severe)”.
Code details
- Manufacturer
- PACCAR (Kenworth & Peterbilt)
- Applies to
- PACCAR MX-13 (2017–2020)
- Fault code
- P0562
- J1939 SPN
- 168
- FMI
- 18 — Data valid but below normal range (moderately severe)
- 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.
- FMI 18 tells the shop the type of failure to test for: data valid but below normal range (moderately severe).
- 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 P0562 — PCI ECU Power Supply – Data Valid But Too Low on ECU (D420) Pin (B61) or Pin (B62)
- PACCAR Fault Code P0563 — PCI ECU Power Supply – Data Valid But Too High on ECU (D420) Pin (B60) or Pin (B61) or Pin (B62)
- PACCAR Fault Code P0A1F — PCI ECU Power Supply – Data Valid But Too Low
- PACCAR Fault Code P1563 — PCI ECU Power Supply – Data Valid But Too Low, Most Severe
- PACCAR Fault Code P3003 — PCI ECU Power Supply – Data Valid But Too Low
- PACCAR Fault Code U1722 — CAN Communication – Message (VEP1) Data Error, Power Supply Value From Aftertreatment System
- Cummins Fault Code 441 — Battery #1 Voltage Low - Warning
- Cummins Fault Code 441 — Battery #1 Voltage Low - Warning
Source: PACCAR MX-13 2017–2020 fault code list (Diesel Laptops). See also OBD-II codes.