OBD Guide

P16E3

Battery Sensor LIN Communication Error

P16E3 is an OBD-II diagnostic trouble code meaning: Battery Sensor LIN Communication Error. Common causes: open or short circuit in lin circuit, oxidation of battery sensor contacts. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Incorrect voltage readings on the dashboard
  • Problems with the start-stop system
  • Errors in the energy management system
  • Reduced battery charging efficiency

Causes

  • Open or short circuit in LIN circuit
  • Oxidation of battery sensor contacts
  • Smart Battery Sensor Malfunction
  • Problems with the control module (BCM/ECM)
  • Poor battery ground connection

How to Fix

  1. Check the integrity of the wiring and connectors in the LIN circuit
  2. Clean battery terminals and sensor contacts
  3. Check the sensor supply voltage (usually 12V)
  4. Scan the LIN bus for valid signals
  5. Replace the battery status sensor if necessary

Related codes

FAQ

What does the P16E3 code mean?

P16E3 is an OBD-II diagnostic trouble code that indicates: Battery Sensor LIN Communication Error

What causes a P16E3 error code?

The most common causes of P16E3 include: Open or short circuit in LIN circuit; Oxidation of battery sensor contacts; Smart Battery Sensor Malfunction; Problems with the control module (BCM/ECM).

How do I fix a P16E3 diagnostic trouble code?

To fix P16E3: Check the integrity of the wiring and connectors in the LIN circuit. Clean battery terminals and sensor contacts. Check the sensor supply voltage (usually 12V). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P16E3?

Yes, but get it checked soon

How much does it cost to fix P16E3?

The estimated repair cost for P16E3 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat