PACCAR MX (2004 Emissions) Fault Code: P1054 Downhill Speed Control Switches – Data Erratic, Intermittent or Incorrect SET CONDITIONS:The PCI...

PACCAR MX (2004 Emissions) Fault Code: P1055 Retarder Switches – Data Erratic, Intermittent, or Incorrect SET CONDITIONS:The PCI ECU (D420)...

PACCAR MX (2004 Emissions) Fault Code: P1057 Exhaust Gas Pressure Before Turbine – Data Valid but Too Low SET CONDITIONS:The...

PACCAR MX (2004 Emissions) Fault Code: P1058 Inlet Air Pressure in Inlet Manifold – Data Valid but Too Low SET...

PACCAR MX (2004 Emissions) Fault Code: P1062 Cruise Control Switches – Data Erratic, Intermittent, or Incorrect SET CONDITIONS:The PCI ECU...

PACCAR MX (2004 Emissions) Fault Code: P1086 Common Rail Fuel Pressure – Increase Too Slow SET CONDITIONS:The PCI ECU (D420)...