Powertrain, generic (extended)

P2A2C Alternative Fuel Tank Shutoff Valve D Control Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P2A2C records too low a level on the control wire of shutoff valve D. TransEco Energy treats it in its AFCM v1.4 fault list as a short to ground or open circuit and switches on the MIL while letting gas operation continue; P2A1C is printed beside it as an alternative number. Ford's Boss 302S list from 2014 contains P2A2C too. On frame-mounted cylinder racks the plug of each tank valve is exposed to spray and road salt, so corrosion and chafing belong on the checklist. CARB asks for low and high circuit faults of output components to be told apart where practical, which explains the separate codes. The high side of this circuit is P2A2D; P2A2A stands for the plain open circuit.

Likely causes

Valve D wire grounded at a chafe point on the cylinder rack
Salt corrosion in the valve D connector
Shorted coil in valve D

Symptoms

  • Check engine light
  • Gas from tank D not available

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–1,200
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

alt fuel tank shutoff valve dwiring harnessafcm

Related codes

P2A2AP2A2BP2A2DP2A28P2A30

References: http:, performanceparts.ford.com, law.cornell.edu.