Paccar

PACCAR MX (2004 Emissions) Fault Code: P153B Crankcase Ventilation Module Rotor Speed – Data Valid but Too Low, Least Severe SET CONDITIONS:The PCI ECU (D420) detects that the measured rotating speed of the internal element is less than 1000 rpm. DIAGNOSTIC CONDITION:This diagnostic runs 60 seconds after the engine has been started. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. IMPORTANT: Do not monitor the MIL to check if the repair has been successful, instead read with the diagnostic service tool if the DTC stays inactive. REPAIR VERIFICATION:1. Clear all DTCs.2....

PACCAR MX (2004 Emissions) Fault Code: P153C Crankcase Ventilation Module Rotor Speed – Data Valid but Too High SET CONDITIONS:The crankcase ventilation speed sensor value > 15,000 rpm DIAGNOSTIC CONDITION:This diagnostic runs when the time since key on > 60 seconds and the engine speed > 500 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? (Can be pending, inactive or active)– No, repair successful– Yes, repair...

PACCAR MX (2004 Emissions) Fault Code: P1560 Coolant Level – Data Valid but Too Low, Moderately Severe SET CONDITIONS:The PCI ECU (D420) detects that the coolant level is too low. CORRESPONDING OBD READINESS MONITOR:None 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 CAUSES:Faulty coolant surge tank float/level sensor

PACCAR MX (2004 Emissions) Fault Code: P1563 PCI ECU Power Supply – Data Valid but Too Low, Most Severe SET CONDITIONS:The PCI ECU (D420) detects that the power supply has dropped to less than 6 V. DIAGNOSTIC CONDITION:This diagnostic runs continuously after starting and running the engine. 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 CAUSES:1. Alternator malfunctioning2. PCI ECU...

PACCAR MX (2004 Emissions) Fault Code: P1564 Fuel Pressure – Data Erratic, Intermittent or Incorrect, at Ignition On SET CONDITIONS:The PCI ECU (D420) detects that the fuel pressure is 1.2 bar [17 psi] or more for more than 5 seconds. DIAGNOSTIC CONDITION:This diagnostic runs when the engine is not running and when the ignition is keyed on after it has been off for more than 60 minutes. 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...