OBD Guide

B1516

Battery Current Sensor

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Incorrect battery voltage readings
  • Battery charging problems
  • Check Engine Light Is On
  • Reduced electrical system efficiency

Causes

  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Battery current sensor malfunction
  • Problems with the control module

How to Fix

  1. Check the integrity of the sensor circuit
  2. Clean sensor connector contacts
  3. Replace battery current sensor if necessary
  4. Check the operation of the control module

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