PACCAR Fault Code P102C: VTG Turbocharger Turbine – Malfunction

Code details

Manufacturer

PACCAR (Kenworth & Peterbilt)

Applies to

PACCAR MX-13 (2017–2020)

Fault code

P102C

J1939 SPN

103

FMI

1 — Data valid but below normal operating range (most 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 1 tells the shop the type of failure to test for: data valid but below normal operating range (most severe).
• Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.

Related fault codes

• PACCAR Fault Code P1580 — Turbocharger Speed – Data Valid But Too High
• PACCAR Fault Code P1581 — Turbocharger Speed – Data Valid But Too Low
• PACCAR Fault Code P2579 — Turbocharger Speed – Abnormal Rate of Change
• PACCAR Fault Code P2580 — Turbocharger Speed – Data Valid But Too Low, Least Severe on ECU (D420) Pin (C20)
• PACCAR Fault Code P2581 — Turbocharger Speed – Data Valid But Too High, Least Severe on ECU (D420) Pin (C20)
• PACCAR Fault Code P0049 — Turbo Speed – Higher than Overspeed Limit
• PACCAR Fault Code P1235 — Turbo Speed – Data Erratic, Intermittent, or Incorrect
• PACCAR Fault Code P1580 — Turbo Speed – Data Valid But Too High