B3840

Park Lamp Signal Circuit Low

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$11–56 (est.)

Symptoms

Side lights don't work
Side lights are flashing
Error on the dashboard

Causes

Open or short circuit in wiring harness
Faulty size relay
Blown fuse
Faulty side light bulbs
Problems with the ECU

How to Fix

Check side light fuses
Check lamps for burnout
Inspect the wiring harness for damage
Check side light relay
If necessary, replace faulty components

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