PACCAR MX (2004 Emissions) Fault Code: P0017 Crankshaft Speed Signal – Not Corresponding With Engine Position

PACCAR MX (2004 Emissions) Fault Code: P0017 Crankshaft Speed Signal – Not Corresponding With Engine Position

SET CONDITIONS:
The PCI ECU (D420) detects that the crankshaft sensor (F552) signal does not correspond to the camshaft sensor (F558) signal (engine position) after some engine revolutions.

DIAGNOSTIC CONDITION:
This diagnostic runs during starting.

CORRESPONDING OBD READINESS MONITOR:
None

RESET CONDITION:
This DTC changes to inactive when the fault is no longer detected. To validate the repair, key the ignition off for at least 15 seconds, key on again. Then start the engine and let it idle for 1 minute.

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. Air gap too large between the camshaft sensor (F558) and the pulse wheel
2. Air gap too large between the crankshaft sensor (F552) and the flywheel
3. Faulty or soiled camshaft sensor (F558) and/or crankshaft sensor (F552)
4. Damaged flywheel and/or pulse wheel
5. Incorrect timing gear setting (applicable after a repair)

ADDITIONAL INFORMATION:
1. Camshaft sensor is used as backup to start the engine.
2. Engine torque is reduced.