Backup Battery Failure


Table of contents

B15CC LEXUS Possible Causes

  • Faulty Back-Up Battery (BUB)
  • Back-Up Battery (BUB) harness is open or shorted
  • Back-Up Battery (BUB) circuit poor electrical connection
  • Faulty Data Communication Module (DCM) (Telematics Transceiver)

How do I fix code B15CC LEXUS?

  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 B15CC LEXUS code

  The cost of diagnosing the B15CC LEXUS 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.

Possible Symptoms

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

B15CC LEXUS Description

  This Diagnostic Trouble Code (DTC) is set when the Data Communication Module (DCM) (Telematics Transceiver) detects one of the following: Open or short in the Back-Up Battery (BUB) circuit, The BUB voltage drops or the BUB malfunctions, The BUB temperature is (temporarily) high.

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