Paccar

PACCAR MX (2004 Emissions) Fault Code: P1404 Crankcase Air Pressure – Data Erratic, Intermittent or Incorrect, at Ignition On SET CONDITIONS:The PCI ECU (D420) detects that the measured crankcase pressure deviates greater than 15 mbar [0.22 psi] from the expected pressure. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the ignition is on (engine not running). CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.3. Did the DTC come back? (Can be pending, inactive or...

PACCAR MX (2004 Emissions) Fault Code: P1407 Crankcase Air Pressure – Leakage Detected SET CONDITIONS:The PCI ECU (D420) detects that the measured crankcase pressure is too high for more than 30 seconds. DIAGNOSTIC CONDITION:This diagnostic runs 600 seconds after the engine has been started and when the coolant temperature is higher than 60?C [140?F]. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.3. Did the DTC come back? (Can be pending, inactive or...

PACCAR MX (2004 Emissions) Fault Code: P1408 Crankcase Air Pressure – Data Valid but Too High, Moderately Severe SET CONDITIONS:The PCI ECU (D420) detects that the measured crankcase pressure is too high for more than 10 seconds. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the ignition is on. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.3. Did the DTC come back? (Can be pending, inactive or active)– No, repair successful– Yes, repair unsuccessful...

PACCAR MX (2004 Emissions) Fault Code: P1409 EGR Pressure – Data Valid but Too High SET CONDITIONS:The PCI ECU (D420) detects that the measured boost pressure is higher than 4.5 bar [65 psi] to control the EGR gas mass flow. DIAGNOSTIC CONDITION:This diagnostic runs when the engine speed is above 1100 rpm. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.3. Did the DTC come back?– No, repair successful– Yes, repair unsuccessful POSSIBLE...

PACCAR MX (2004 Emissions) Fault Code: P140A Crankcase Ventilation Module Rotor Speed – Data Valid but Too High SET CONDITIONS:The PCI ECU (D420) detects that the measured rotating speed of the internal element is more than 14,000 rpm for more than 10 seconds. DIAGNOSTIC CONDITION:This diagnostic runs:1. 600 seconds after the engine has been started and2. When the coolant temperature is higher than 50°C [122°F] CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the diagnostic conditions and set...