Paccar

PACCAR MX (2004 Emissions) Fault Code: P2560 Coolant Level – Data Valid but Too Low, Most Severe SET CONDITIONS:The PCI ECU (D420) detects that the coolant level is too low. 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?– No, repair successful– Yes, repair unsuccessful POSSIBLE CAUSES:1. Coolant level is too low2. Faulty coolant surge tank float/level sensor...

PACCAR MX (2004 Emissions) Fault Code: P2563 VTG Turbocharger Actuator Position – No or Too Slow Movement IMPORTANT: DO NOT re-calibrate the turbocharger actuator before the cause of this DTC has been identified and solved. Re-calibration could lead to engine performance and/or engine brake performance issues. SET CONDITIONS:The VTG turbocharger actuator (L037) detects a difference between the requested and actual actuator motor position of more than 8.9%, for more than 35 seconds. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the ignition is on, and the actuator temperature is more than 5°C. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:This DTC will change to...

PACCAR MX (2004 Emissions) Fault Code: P2579 Turbo Speed – Abnormal Rate of Change SET CONDITIONS:The PCI ECU (D420) detects that the measured turbo-speed signal is out of range or changing abnormally. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the engine is 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?– No, repair successful– Yes, repair unsuccessful POSSIBLE CAUSES:1. Exhaust gas leakage between engine and VTG turbocharger2. Displaced...

PACCAR MX (2004 Emissions) Fault Code: P2580 Turbo Speed – Data Valid but Too Low, Least Severe on ECU (D420) Pin (C87) SET CONDITIONS:The PCI ECU (D420) detects that the turbo speed is below 30,000 rpm for more than 20 seconds. DIAGNOSTIC CONDITION:This diagnostic runs when the engine speed is above 1000 rpm, and the engine is moderately loaded. RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. POSSIBLE CAUSES:1. Exhaust gas leakage between engine and VTG turbocharger2. Loose turbo speed sensor (air gap too large)3. Malfunction on the turbo speed sensor wiring4. Malfunction on the...

PACCAR MX (2004 Emissions) Fault Code: P2581 Turbo Speed – Data Valid but Too High, Least Severe on ECU (D420) Pin (C87) SET CONDITIONS:The PCI ECU (D420) detects that the turbo speed is above 130,000 rpm. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the engine is 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?– No, repair successful– Yes, repair unsuccessful POSSIBLE CAUSES:1. Malfunction on the turbo-speed sensor...