GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Avalanche - 2WD 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Communication Interface Module Replacement

Communication Interface Module Replacement Cadillac


Object Number: 1816302 Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the instrument Panel Accessory Trim Plate. Refer to Instrument Panel Accessory Trim Plate Replacement.
  2. Remove the radio. Refer to Radio Replacement.
  3. Remove the HVAC Control Module. Refer to HVAC Control Module Replacement or HVAC Control Module Replacement.

1

Communication Interface Module

Tip

    • Push outward on the two tabs to release the communication interface module from the bracket.
    • Disconnect the electrical connectors.
    • When replacing the communication interface module be sure to transfer Bluetooth Antenna, if equipped.
    • Reprogram the communication interface module after replacement. Refer to Control Module References.

Communication Interface Module Replacement Except Cadillac


Object Number: 1815902 Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the instrument Panel Accessory Trim Plate. Refer to Instrument Panel Accessory Trim Plate Replacement.
  2. Remove the HVAC Control Module. Refer to HVAC Control Module Replacement or HVAC Control Module Replacement.
  3. Remove the radio. Refer to Radio Replacement.

1

Communication Interface Module

Tip

    • Push outward on the two tabs to release the communication interface module from the bracket.
    • Disconnect the electrical connectors.
    • When replacing the communication interface module be sure to transfer Bluetooth Antenna, if equipped.
    • Reprogram the communication interface module after replacement. Refer to Control Module References.