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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Automatic Transmission - ALLISON - Introduction (2 Of 2)) >> Repair Instructions >> Wiring Harness Replacement >> Installation Procedure

Installation Procedure

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  1. Align the tabs on the new wiring harness U-channel with the solenoid retainer slots for SS3 (3) and SS2 (2) on the control valve assembly. Install the solenoid retainers (12) for the SS3 (3) and SS2 (2) solenoids.
  2. IMPORTANT: The internal wiring harness connectors should be in the correct position for installation because of their pre-assembled position in the U-channel.
    Fig 1: Attaching Internal Wiring Harness Connectors
    GM1633341Courtesy of GENERAL MOTORS CORP.
  3. Attach the internal wiring harness connectors to the solenoids, the IMS, and the TFP switch.
    • Connector (8) goes to SS 1 (5)
    • Connector (9) goes to the TFP switch (7)
    • Connector (11) goes to the MAIN MOD solenoid (19)
    • Connector (10) goes to solenoid (2)
    • Connector (13) goes to the IMS
    • Connector (14) goes to the TCC PCS (1)
    • Connector (15) goes to SS2 (2)
    • Connector (16) goes to SS 3 (3)
    • Connector (17) goes to PCS 1 (4)
    • Connector (18) goes to PCS 2 (6)
  4. Fig 2: Pushing Main Transmission Connector Through Transmission Case Hole
    GM1633296Courtesy of GENERAL MOTORS CORP.
  5. Push the main transmission connector (2) outward through hole (1) in the transmission case until the retaining feet on the connector are near the locked position.
  6. Fig 3: Using J 44247 To Seat Transmission Connector
    GM1633298Courtesy of GENERAL MOTORS CORP.
  7. Use J 44247  to seat the retaining feet on transmission connector (1). See Special Tools .
  8. Install the oil pan and transmission internal oil filter. Refer to Oil Pan Replacement .
  9. Connect the external wiring harness to the main transmission connector.