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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1994 (Automatic Transmission - 6T75 - DTC P0218 To DTC P0977) >> DTC P0741 or P0742 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, remove the control solenoid (w/body and TCM) valve assembly.
  2. Install the DT-47825  to the control solenoid (w/body and TCM) valve assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test for detailed instructions.
  3. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test . A pressure change should occur.
    • If a pressure change does not occur, replace the control solenoid (w/body and TCM) valve assembly.
  4. Inspect for the following conditions and repair/replace as necessary:
    • Converter feed limit valve in the control valve lower body for a stuck valve, debris or damage
    • TCC control valve and the TCC regulator valve in the control valve upper body for a stuck valve, debris or damage
    • Torque converter assembly for damage or discoloration
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