JD-SPN105-FMI0 serious John Deere PowerTech ›

Intake Manifold Temperature - Data Valid but Above Normal Operational Range (Most Severe)

The JD-SPN105-FMI0 (John Deere PowerTech) diesel fault code means: Intake Manifold Temperature - Data Valid but Above Normal Operational Range (Most Severe). This is a serious severity code.

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Keep driving?
Yes, with caution
DIY difficulty
intermediate
Estimated cost
$90-$320 sensor + install
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Common Symptoms

  • Fault lamp on operator display
  • Possible derate once confirmed active
  • Inaccurate dashboard readout for the affected parameter

Probable Causes (Ranked by Likelihood)

  • Failed sensor element or contaminated sensor tip Likely
  • Broken, chafed, or corroded sensor harness connector Very Likely
  • Open / short to ground between sensor and ECU Possible
  • ECU signal input fault (rare) Less Likely

Frequently Asked Questions

What is John Deere fault code SPN 105 FMI 0?

On John Deere PowerTech engines, SPN 105 FMI 0 means: Intake Manifold Temperature - Data Valid but Above Normal Operational Range (Most Severe). Serious code -- address promptly to avoid inducement / further damage.

Can I keep using my John Deere tractor with SPN 105 FMI 0?

Serious fault -- you can move the machine to a shop but don't run it under load. Diagnose with John Deere Service ADVISOR via an EDL v3 / CF3 interface.

How much does it cost to fix John Deere SPN 105 FMI 0?

Repair cost range: $90-$320 sensor + install. Dealer labor on large tractors runs $180-$240/hr in 2026.

Mechanics Guide Step-by-step diagnosis

Step-by-Step Diagnostic Procedure

  1. Use John Deere Service ADVISOR (CF3/EDL v3) and capture live sensor value vs. expected range.

  2. Back-probe the sensor harness -- verify 5V reference and signal return at the ECU connector.

  3. Swap the sensor with a known-good matching part number and clear the code.

  4. Check CAN data trace for sensor broadcast on J1939 before condemning the ECU.

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J1939-73Application Layer: Diagnostics (defines the SPN/FMI fault-identifier framework)

SPN105-FMI0 on Other Platforms

The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:

CAT moderate Intake Manifold Temp Above Normal

Commonly Affected Vehicles

  • 2015+ John Deere 7R Series (7210R, 7250R, 7290R, 7310R)
  • 2015+ John Deere 8R / 8RT Series (8245R-8370R)
  • 2015+ John Deere 9R / 9RT / 9RX Series (9370R-9620R)
  • John Deere S670 / S680 / S690 combines
  • John Deere S770 / S780 / S790 combines
  • John Deere 544 / 624 / 724 wheel loaders
  • John Deere R4045 / R4060 self-propelled sprayers

Explore More

More John Deere PowerTech codes → Diesel home All diesel codes Heavy-duty Guides

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