B0089high severityBody

SRS Control Module Voltage High

on 2008 Dodge Challenger 3.5L V6 · RWD

What this code means

The SRS control module is receiving higher than specified operating voltage.

Symptoms

  • Airbag warning light on
  • SRS codes set
  • Electronic component stress

Common causes

  • Overcharging alternator
  • Faulty voltage regulator
  • Poor ground causing voltage offset
  • Jump start damage

Diagnostic steps

  1. Check charging system voltage
  2. Test alternator output regulation
  3. Inspect ground connections
  4. Measure voltage at ACM

Repair notes

Repair charging system. Replace alternator or voltage regulator if overcharging.

Other Body codes on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Ask a Master Tech about this exact car → real human answer within 24h, never AI
⚠ STILL BEHIND THE PAYWALL
The 2008 Dodge Challenger repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Dodge Challenger — $99 →
Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →