J1587/J1939 Data Link Communication Lost
The VOLVO-MACK-MID140-PID248-FMI9 (Volvo/Mack D/MP Series) diesel fault code means: J1587/J1939 Data Link Communication Lost. This is a serious severity code.
Unverified. We could not confirm this code's definition against freely available manufacturer documentation, so treat the meaning, severity and fix guidance on this page as unconfirmed. Check it against the manufacturer's service information for your exact model and serial range before acting on it. This page is kept out of search engines for that reason, and we are working through this family manual by manual.
- Keep driving?
- Short distances only
- DIY difficulty
- intermediate
- Estimated cost
- $200-$1,200
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View pilot availability →What Are the Symptoms of VOLVO-MACK-MID140-PID248-FMI9?
- Affected gauge reads incorrectly or is frozen
- Cluster warning indicator illuminated
- Datalink message lost (CAN-wide effects)
- Speedometer reads zero or erratic
- Low-voltage shutdown on heavy starts
What Causes VOLVO-MACK-MID140-PID248-FMI9? (Most Likely First)
- Failed datalink or cluster module input Likely
- Wiring damage or connector corrosion Likely
- Poor ground at cluster or chassis ground block Possible
- Alternator or battery issue (charging codes) Possible
- Cluster EEPROM corruption Less Likely
Can I Still Drive with VOLVO-MACK-MID140-PID248-FMI9?
Short distances only. VOLVO-MACK-MID140-PID248-FMI9 is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does Volvo/Mack code MID140-PID248-FMI9 mean?
Volvo/Mack code MID140-PID248-FMI9 (J1587/J1939 Data Link Communication Lost) is a serious-severity diagnostic trouble code set on D11/MP7, D13/MP8, and D16/MP10 diesel engines in Volvo VNL/VNR and Mack Anthem/Pinnacle/Granite/Titan trucks. It indicates a fault in the datalink system and should be read with Volvo Premium Tech Tool (PTT) or Mack Guided Diagnostics.
Can I drive a Volvo or Mack truck with code MID140-PID248-FMI9?
Short distances may be acceptable to reach a repair facility, but the fault will escalate to derate (typically 55 mph then 5 mph on aftertreatment faults). Do not defer diagnosis beyond a shift.
How much does it cost to fix Volvo/Mack code MID140-PID248-FMI9?
Typical repair falls in the range $200-$1,200. Sensor/wiring repairs are at the low end; EGR cooler, NOx sensor set, DEF pump, injector, or head work runs at the high end. Volvo PTT or Mack Guided Diagnostics is normally required for calibration and parameter programming.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose VOLVO-MACK-MID140-PID248-FMI9?
Connect Volvo PTT or Mack Guided Diagnostics (cluster module) and verify MID140-PID248-FMI9 active; check freeze-frame.
Measure battery and alternator voltage at the cluster pin (13.8-14.4V engine running).
Inspect chassis grounds at the cluster and engine-to-frame ground strap.
For datalink codes, measure CAN-H / CAN-L termination resistance (should be ~60 ohms with key off, ignition disconnected).
Inspect harness routing behind the dash for chafe, pinch, or heat damage.
After repair, cycle key and verify code clears via PTT or Guided Diagnostics.
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)
Which Vehicles Commonly Get VOLVO-MACK-MID140-PID248-FMI9?
- Volvo VNL 760/860 with D13
- Volvo VNR 640 with D11/D13
- Mack Anthem with MP8
- Mack Pinnacle with MP7/MP8
- Mack Granite with MP7/MP8
- Mack Titan with MP10
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