OBDII Code List

B278C SCION - Lost Communication With Power Source Control

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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B278C SCION Possible Causes

  • Faulty Power Management Control ECU
  • Power Management Control ECU harness is open or shorted
  • Power Management Control ECU circuit poor electrical connection
  • Faulty Certification ECU (Smart Key ECU Assembly)

First diagnose B278C SCION code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the B278C SCION code

    Labor: 1.0

    The cost of diagnosing the B278C SCION code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

B278C SCION Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B278c Scion Description

This Diagnostic Trouble Code (DTC) is stored when Local Interconnect Network (LIN) communication between the Certification ECU (Smart Key ECU Assembly) and Power Management Control ECU stops for 10 seconds or more.
OBDII Code B278c Scion - Lost Communication With Power Source Control -

B278C SCION More Information

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