GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Montana SV6 Ext. 🢒 Body 🢒 Wiring Systems 🢒 Instrument Panel Electrical Center or Junction Block Replacement

Removal Procedure

    Object Number: 1536799 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the instrument panel (I/P) right side endcap cover. Refer to Upper Trim Pad, Outer Trim Cover, Fuse Block Access Cover Replacement - Instrument Panel in Instrument Panel, Gages, and Console.
  3. Remove the I/P compartment. Refer to Instrument Panel Compartment Assembly, Door, Striker, and Latch Replacement in Instrument Panel, Gages, and Console.
  4. Remove the 2 forward screws (1) securing the I/P accessory wiring junction block assembly to the I/P carrier.

    5. Object Number: 1536801 Size: SH
  5. Remove the 2 nuts (1) securing the I/P accessory wiring junction block assembly bracket (2) to the I/P carrier.

    6. Object Number: 1536802 Size: SH
  6. Lower the I/P electrical center bracket and swing the junction block into the stowage compartment area.
  7. Squeeze and release the retaining tabs from the shroud/base in order to release the electrical connector from the I/P wiring harness.
  8. Walk off the I/P accessory wiring junction block assembly from the connector.

    9. Object Number: 1536824 Size: SH

    Important: Re-stage the connectors (2) into the lower I/P accessory wiring junction block assembly base/shroud (1) prior to installing the new I/P wiring harness junction block.

  9. Ensure the main harness is secured into the lower shroud/base.

Installation Procedure
  1. Verify that the harness connectors are securely locked to the retention tabs (3).
  2. Position the connector (1) to the I/P wiring harness junction block.

    3. Object Number: 1536802 Size: SH
  3. Once the connector is aligned, carefully squeeze the connector to the base until both outer locking tabs are secure.
  4. Repeat step 3 for the additional connectors.

    5. Object Number: 1536801 Size: SH
  5. Position the I/P wiring harness junction block bracket (2) back to the I/P carrier bracket studs.

    6. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the nuts (1).

    7. Tighten
    Tighten the nuts to 10 N·m (89 lb in).


    Object Number: 1536799 Size: SH
  7. Secure the 2 screws (1) at the I/P endcap.

    8. Tighten
    Tighten the screws to 2 N·m (18 lb in).

  8. Install the I/P compartment. Refer to Instrument Panel Compartment Assembly, Door, Striker, and Latch Replacement in Instrument Panel, Gages, and Console.
  9. Install the I/P right side end cap cover. Refer to Upper Trim Pad, Outer Trim Cover, Fuse Block Access Cover Replacement - Instrument Panel in Instrument Panel, Gages, and Console.
  10. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  11. Perform the power sliding door re-initialization procedure. Refer to Rear Side Door Actuator Control Module Programming and Setup .