Back to 2012 Dodge Ram 3500

2012 DODGE RAM 3500

6.7L I6 Cummins Diesel4WDAUTOMATICdiesel
Repairs0Labor511Torque2763Fluid9DTC787Battery0Maintenance0Recalls0
P0091moderate severityPowertrain

Fuel Pressure Regulator 1 Control Circuit Low

on 2012 Dodge Ram 3500 6.7L I6 Cummins Diesel · 4WD

What this code means

Low voltage in the fuel pressure regulator control circuit.

Symptoms

  • Check Engine Light
  • Low fuel pressure

Common causes

  • Short to ground
  • Faulty regulator

Diagnostic steps

  1. Test voltage
  2. Check for shorts

Repair notes

Repair or replace.

Other Powertrain codes on this vehicle

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 →