International (Navistar)
Navistar DTC
International Fault Code 554: IDM incorrect CKPO signal signature
554 on International / Navistar trucks means: IDM incorrect CKPO signal signature.
Code details
- Manufacturer
- International (Navistar)
- Applies to
- International / Navistar engine (DTC index)
- Fault code
- 554
- Component / signal
- ECM/IDM
- Truck models in source
- 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar
What to do next
- Read active and inactive codes with the OEM service tool (Diamond Logic Builder can clear previously active codes) and note the occurrence count.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
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Related fault codes
- International Fault Code 543 — ECM/IDM communications fault
- International Fault Code 546 — Engine Brake Control Pressure is below expected range
- International Fault Code 547 — Engine Brake Control Pressure is above expected range
- International Fault Code 551 — IDM/CMPO signal inactive
- International Fault Code 552 — IDM incorrect CMPO signal signature
- International Fault Code 553 — IDM CKPO signal inactive
Source: Navistar diagnostic trouble code index (HNC Truck Parts). See also OBD-II codes.