Error code
OBD2 U0115
OBD2U0115
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Lost Communication With ECM/PCM B.
Severity
highDriving may be possible but could lead to further damage. It's best to address the issue promptly.
Summary
U0115 indicates a loss of communication between the ECM/PCM B and other modules on the data bus. This issue affects engine control module (ECM) B.
Common Causes
- Faulty or damaged wiring harness
- Corroded connectors
- Failed ECM/PCM B
Fixes
FAQ
How can I diagnose U0115?
Use a diagnostic tool like Torque Pro to check for additional codes and inspect the wiring harness and connectors between ECM/PCM B and other modules.
What should I do if I encounter this code?
Consult with a professional mechanic or automotive repair service to diagnose and fix the issue. Ignoring it could lead to further problems.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0100Lost Communication With ECM/PCM A
- U0101Lost Communication with TCM
- U0102Lost Communication with Transfer Case Control Module
- U0103Lost Communication With Gear Shift Module
- U0104Lost Communication With Cruise Control Module
- U0105Lost Communication With Fuel Injector Control Module
- U0106Lost Communication With Glow Plug Control Module
- U0107Lost Communication With Throttle Actuator Control Module
- U0108Lost Communication With Alternative Fuel Control Module
- U0109Lost Communication With Fuel Pump Control Module
- U0110Lost Communication With Drive Motor Control Module
- U0111Lost Communication With Battery Energy Control Module 'A'