Free API
Back to 2014 Ram 2500
Help
2014 RAM 2500
6.7L I6 Cummins Diesel•4WD•AUTOMATIC•diesel•turbo
16 active safety recalls on this vehicle — view recalls🏆Sponsored by Anonymous Sponsor
Repairs436Labor519Torque3583Fluid10DTC1790Battery1Maintenance0Recalls16
P2537low severityPowertrain

Ignition Switch Accessory Position Circuit

on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD

What this code means

The module detected a fault in the ignition switch accessory position input circuit. The accessory position signal is missing, low, or high.

Symptoms

  • Accessories not working
  • Warning light on
  • Intermittent electrical faults

Common causes

  • Faulty ignition switch
  • Wiring or connector fault
  • Corroded terminals
  • Failed control module

Diagnostic steps

  1. Scan for stored codes
  2. Test ignition switch accessory signal
  3. Inspect related wiring
  4. Replace ignition switch if needed
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITE
Shop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other Powertrain codes on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
🔓 LIBERATED FOREVER
The 2014 Ram 2500 6.7L I6 Cummins Diesel repair data is free for every DIYer and shop on earth, permanently, because Anonymous Sponsor paid $99 to unlock it.
Mitchell1 charges $169/mo for this. ALLDATAdiy charges $30/yr per vehicle. Open Labor Project is free permanently, because of community sponsors like Anonymous.
Free another vehicle →
Building an app?
Free API access to all this data — 10 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 →