PACCAR (Kenworth & Peterbilt)
PACCAR fault code
SPN 100
PACCAR Fault Code P1523: Engine Oil Pressure – Data Valid But Too High, Most Severe
P1523 on PACCAR (Kenworth & Peterbilt) engines means: Engine Oil Pressure – Data Valid But Too High, Most Severe.
Code details
- Manufacturer
- PACCAR (Kenworth & Peterbilt)
- Applies to
- PACCAR MX-13 (2017–2020)
- Fault code
- P1523
- J1939 SPN
- 100
- 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 P0522 — Engine Oil Pressure – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (C84)
- PACCAR Fault Code P0523 — Engine Oil Pressure – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (C84)
- PACCAR Fault Code P0524 — Engine Oil Pressure – Data Valid But Too Low, Most Severe
- PACCAR Fault Code P1524 — Engine Oil Pressure – Data Valid But Too Low, Moderately Severe
- Cummins Fault Code 135 — Engine Oil Pressure Sensor Circuit - shorted high
- Cummins Fault Code 141 — Engine Oil Pressure Sensor Circuit - shorted low
- Cummins Fault Code 143 — Engine Oil Pressure Low – Warning
- Cummins Fault Code 143 — Engine Oil Pressure Low – Warning
Source: PACCAR MX-13 2017–2020 fault code list (Diesel Laptops). See also OBD-II codes.