B1687

Lamp Dome Input Circuit Short To Battery

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–111 (est.)

Symptoms

Dome light malfunction
Constantly lit dome light
Low battery

Causes

Short circuit in wiring harness
Dome light switch malfunction
Body Control Module (BCM) Problems
Damage to wire insulation

How to Fix

Check the integrity of the dome light wiring harness
Check dome light switch
Check BCM status
Replace damaged wires or components

Related codes

B1685 B1686 B1688