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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1341 (Engine Controls - Powertrain DTC Charts & Descriptions - (Hybrid)) >> DTC Diagnosis >> DTC P2521: A/C Request A Circuit High

DTC P2521: A/C Request A Circuit High

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P2521 - A/C REQUEST A CIRCUIT HIGH

Description:  A DTC sets if the A/CFDS is high during the self-test.
Possible Causes: 
  • A/C or defrost was on during the self-test.
  • A/CFDS circuit short to power.
  • Damaged climate control function selector switch.
  • Invalid combination of A/CCS and A/CFDS inputs.
Diagnostic Aids:  Verify the A/C was off during the self-test.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test KM .
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