SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2009CUTAWAY E250, 4R70WREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISDTC P2258: - SECONDARY AIR INJECTION (AIR) SYSTEM CONTROL A CIRCUIT HIGH
2009 Ford Cutaway E250, 4R70W

DTC P2258: - Secondary Air Injection (Air) System Control A Circuit High

2009 Ford Cutaway E250, 4R70WSECTION DTC P2258: - Secondary Air Injection (Air) System Control A Circuit High
DTC P2258: - SECONDARY AIR INJECTION (AIR) SYSTEM CONTROL A CIRCUIT HIGH

Description:  The AIR system monitor circuit is high, indicating the secondary AIR pump is on although the secondary AIR pump was commanded off by the powertrain control module (PCM).
Possible Causes: 
  • AIR relay fault - stuck closed
  • Secondary AIR pump fault - circuit open in motor
  • Open ground to secondary AIR pump
  • Open AIR monitor circuit between the secondary AIR pump and the PCM
  • Short to voltage in the AIR relay to secondary AIR pump voltage circuit
Diagnostic Aids:  The AIR monitor circuit PCM input contains a pull up voltage through a resistance internal to the PCM. This voltage is normally held low by the resistance path through the secondary AIR pump when the secondary AIR pump is off.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test HM .
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.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.