PACCAR MX (2004 Emissions) Fault Code: P262B PCI ECU Power Supply - Open Circuit on ECU (D420) Pin (B43)

DIAGNOSTIC CONDITION:
This diagnostic runs continuously when the ignition is on.

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

PACCAR MX (2004 Emissions) Fault Code: P0262 Common Rail Pump Unit 1 - Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A25)

PACCAR MX (2004 Emissions) Fault Code: P0261 Common Rail Pump Unit 1 - Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A25)

PACCAR MX (2004 Emissions) Fault Code: P253B CAN Communication - Message (PTO) Out of Range, Engine PTO Governor Set Switch

PACCAR MX (2004 Emissions) Fault Code: P252F Engine Oil Level - Data Valid but Too High, Moderately Severe

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