EGT Sensor 1 Low Input
The MAXXFORCE-P0545 (MaxxForce) diesel fault code means: EGT Sensor 1 Low Input. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- intermediate
- Estimated cost
- $150-$400
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Common Symptoms
- CEL
- Incomplete regen
Probable Causes (Ranked by Likelihood)
- Failed upstream DOC EGT sensor Likely
Step-by-Step Diagnostic Procedure
Check EGT sensor resistance.
Replace sensor.
Frequently Asked Questions
What is P0545 on a MaxxForce 7 (6.4L)?
P0545 on a MaxxForce 7 (6.4L) (2007-2013) indicates: EGT Sensor 1 Low Input. This is a known fault code on the MaxxForce engine family and typically points to the causes listed above.
Can I drive with P0545 on my MaxxForce?
Yes, you can generally drive with this code, but diagnose soon to prevent secondary damage.
How much does it cost to fix MaxxForce P0545?
Repair cost is typically $150-$400 depending on the underlying cause and shop rate. Many MaxxForce faults (especially EGR cooler, head bolt, and VGT repairs) are major expenses that drove fleet owners to repower with Cummins or retire these trucks early.
P0545 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: