Sierra 1500 4WD V8-6.0L VIN U (2006)
6. Connect the internal wiring harness electrical connectors to the following components:
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Transmission fluid pressure switch (1)
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1-2 shift control solenoid (2)
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2-3 shift control solenoid (3)
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Pressure control solenoid (4)
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TCC PWM solenoid (5)
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3-2 control solenoid (6)
7. Install the 1-2 accumulator, if necessary.
8. Install the transmission filter.
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid, TCC Solenoid, and Wiring
Harness
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid, TCC Solenoid, and Wiring Harness
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Tools Required
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J 28458 Seal Protector Retainer Installer
Removal Procedure
1. Remove the transmission filter.
2. Disconnect the transmission harness 20-way connector (1) from the transmission internal harness pass-through connector. Depress both tabs on the
connector and pull straight up; do not pry the connector.
3. Remove the 1-2 accumulator. Do not remove the spacer plate.
Important: Removal of the valve body is not necessary for the following procedure.