OBD Guide

B3802

Park Lamps Request Circuit

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Inoperative side lights
  • Flashing or unstable operation of side lights
  • Dashboard warning
  • Inability to turn on side lights

Causes

  • Open or damaged control circuit wiring harness
  • Short circuit in the circuit
  • Side light switch malfunction
  • Relay or fuse problems
  • Malfunction of the lighting control unit

How to Fix

  1. Check the integrity of the fuse and side light relay
  2. Inspect the wiring harness for damage
  3. Check the side light switch
  4. Test the control circuit with a multimeter
  5. If necessary, replace faulty components
  6. Reset the error code and check if it returns

Related codes

Error B3802 by Vehicle Brand