GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 SLS 🢒 Transmission 🢒 Automatic Transmission - 5L40-E/5L50-E 🢒 Transmission Internal Electrical Harness Replacement

Removal Procedure
  1. Remove the Transmission fluid pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .

    2. Object Number: 785868 Size: SH
  2. Disconnect the transmission wiring harness connector (1) from the transmission by rotating the locking latch (2) counterclockwise.

    3. Object Number: 822499 Size: SH
  3. Disconnect the internal wiring harness from components (1-8).

    4. Object Number: 812734 Size: SH
  4. Remove the internal wiring harness retainer (2) from the internal wiring harness (1).

    5. Object Number: 792825 Size: SH
  5. Remove the internal wiring harness (2) from the transmission.
  6. Remove the O-ring seals (3) from the internal wiring harness (2) only if the O-rings are cut or worn.

Installation Procedure

    Object Number: 792825 Size: SH
  1. Install new O-ring seals (3) onto the internal wiring harness (2) if the O-rings were previously removed.
  2. Install the internal wiring harness (2) to the transmission.

    3. Object Number: 812734 Size: SH
  3. Install the internal wiring harness retainer (2) to the internal wiring harness (1).

    4. Object Number: 822499 Size: SH
  4. Connect the internal wiring harness to components (1-8).

    5. Object Number: 785868 Size: SH
  5. Connect the transmission wiring harness connector (1) to the transmission by rotating the locking latch (2) clockwise.
  6. Install the Transmission fluid pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .