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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 250 (Automatic Transmission - 6L50/6L80/6L90 - DTC P0218 To DTC P0971) >> DTC P0961, P0962 or P0963 >> Circuit/System Description

Circuit/System Description

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The line pressure control (PC) solenoid is part of the control solenoid (w/body and TCM) valve assembly and has no seviceable parts. The line PC solenoid regulates the transmission fluid line pressure. The TCM varies the current to the normally high line PC solenoid valve from 0.1 amp for maximum line pressure, to 1.1 amps for minimum line pressure. This is accomplished by varying the desired line pressure in kPa (psi).

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