U0140 on JEEP CHEROKEE
Lost Communication With Body Control Module
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Jeep Cherokee context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for U0140.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What U0140 Means on Your JEEP CHEROKEE
U0140 is a diagnostic trouble code indicating: Lost Communication With Body Control Module. This code relates to the vehicle network, module communication, or data bus system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real JEEP CHEROKEE Owner Reports
Source: NHTSA Complaints Database
"1st incident- 9/1/15- driving in interstate traffic when w/o warning jeep lost power, immediately slowed as if it dropped gears and went into neutral, "service parking brake" message flashed and said to put in park/turn car off/restart."
"10nov14 returned the car to the dealer for p56 recall.24nov14 mil turned on while driving w/ 1099 miles. returned car to a dealer in thousand oaks.tech resets mil & erased codes. 4mar15 mil turned-on again w/ 4375 miles on the car."
"The contact owns a 2019 Jeep Cherokee. The contact stated that while driving at an undisclosed speed, the message "Service 4WD" was displayed on the instrument panel. The vehicle was taken to Firestone, where it was diagnosed, and DTC: C14A7-97 was retrieved."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on JEEP CHEROKEE
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.