DTC P2240: O2 Sensor Positive Current Control Circuit Open - Bank 2, Sensor 1

2004 Ford Mustang Base, 2D Coupe, 3.9 6, AutomaticSECTION DTC P2240: O2 Sensor Positive Current Control Circuit Open - Bank 2, Sensor 1
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.
P2240 - O2 SENSOR POSITIVE CURRENT CONTROL CIRCUIT OPEN - BANK 2, SENSOR 1

Description:  See the description for DTC P2237 .
Possible Causes:  See the possible causes for DTC P2237 .
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DZ .
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.