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Home >> Ford >> 2010 >> Escape Base, 2.5 7, AWD, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P2626: O2 Sensor Positive Current Trim Circuit/Open (Bank 1 Sensor 1)
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DTC P2626: O2 Sensor Positive Current Trim Circuit/Open (Bank 1 Sensor 1)

DTC P2626: O2 SENSOR POSITIVE CURRENT TRIM CIRCUIT/OPEN (BANK 1 SENSOR 1)

Description:  During deceleration fuel shut-off (DFSO) the powertrain control module (PCM) monitors the integrity of the universal heated oxygen sensor (HO2S) UO2SPCT circuit by comparing the actual oxygen sensor voltage signal to an expected oxygen sensor voltage signal. The test fails when the actual oxygen sensor voltage exceeds the maximum expected voltage threshold for a specified amount of time.
Possible Causes: 
  • Corrosion
  • Poor connections
  • UO2SPCT circuit open
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - GO to PINPOINT TEST DZ .