OBD Guide

U0216

Lost Communication With Door Switch B

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Interior lighting does not work when door B is opened
  • False door unlock warnings on dashboard
  • Incorrect operation of the central locking
  • No response to opening/closing door B

Causes

  • Open or short circuit in door switch B circuit
  • Door B switch itself is faulty
  • Door B wiring harness problems
  • Body control module malfunction
  • Problems in the vehicle's CAN network

How to Fix

  1. Check the continuity of door switch B
  2. Test the operation of door switch B
  3. Inspect the wiring harness in the area of door B for damage.
  4. Check the connections in the connectors of the switch and control unit
  5. If necessary, replace door switch B

Related codes

Error U0216 by Vehicle Brand