How Do I Repair A Body Control Module On A 2002 Chevy Trailblazer

Skilful evening,

I posted the procedure for you below.

Why do y'all remember information technology needs to exist replaced?

Roy

BODY CONTROL MODULE REPLACEMENT

REMOVAL Procedure

IMPORTANT:
- The ignition switch should be in the OFF position when connecting or disconnecting the connectors to the body command module (BCM).
- Always disconnect the 40-mode body wiring extension FIRST, the 32-way tan connector SECOND and the 24-way gray electric connector LAST.
- E'er connect the 24-fashion gray electrical connector Outset, the 32-mode tan connector 2nd and the 40-way body wiring extension LAST.
- The BCM can set DTCs with the ignition switch in the OFF position. The BCM has battery run down protection for the courtesy lamp circuit. The BCM battery run downwardly protection cannot detect shorts on inputs or other circuits which the BCM does not command. Utilize the browse tool in order to activate the Ability DOWN NOW way. Employ the Ability DOWN NOW style in order to check for current draws on circuits that are not controlled past the BCM, or controlled past the battery run down protection organization.
- Practise not touch the exposed electrical contacts of the body wiring extension. Exercise not open the BCM housing. The module does non have any serviceable components. The module may be replaced only as an assembly.

1. Disconnect the negative battery cable.

Circumspection: Refer to Battery Disconnect Caution in Service Precautions.

2. If replacing the BCM on a Chevrolet TrailBlazer EXT or GMC Envoy XL, remove the left second row seat.
3. If replacing the BCM on a Chevrolet TrailBlazer, GMC Envoy or Oldsmobile Bravada, position the left paw second seat to a cargo position.

ImageOpen In New TabZoom/Impress

four. Remove the rear electric center cover.

ImageOpen In New TabZoom/Impress

5. Press downward and hold the locking tab (1).
six. Disengage the sliding latch retaining the BCM to the rear electric center. Slide the latch inboard until fully extended, approximately twoscore mm (1.half dozen in).

ImageOpen In New TabZoom/Impress

seven. Disconnect the twoscore-manner body wiring extension (i) from the BCM.

ImageOpen In New TabZoom/Print

viii. Disconnect the 32-way tan electrical connector (ii) from the BCM.
9. Disconnect the 24-way grayness electric connector (one) from the BCM.

ImageOpen In New TabZoom/Print

x. With an upward motion, remove the BCM (1) from the rear electric eye.

INSTALLATION Process

imageOpen In New TabZoom/Print

1. Index the slots on the BCM (i) to the rear electrical eye.
2. Using a downward motion, install the BCM to the rear electrical center.

ImageOpen In New TabZoom/Impress

iii. Connect the 24-way gray electrical connector (ane) to the BCM.
4. Connect the 32-manner tan electrical connector (2) to the BCM.

ImageOpen In New TabZoom/Print

5. Connect the 40-way body wiring extension (1) to the BCM.

ImageOpen In New TabZoom/Print

half dozen. Appoint the sliding latch fastening the BCM to the rear electrical center. Slide the latch outboard until the locking tab (1) is fully seated.

ImageOpen In New TabZoom/Print

7. Install the rear electrical eye cover.
8. If replacing the BCM on a Chevrolet TrailBlazer, GMC Envoy or Oldsmobile Bravada, position the left hand 2nd seat to a rider position.
9. If replacing the BCM on a Chevrolet TrailBlazer EXT or GMC Envoy Forty, install the left second row seat.
ten. Connect the negative bombardment cable.
11. If installing a replacement BCM, program the BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration. See: Vehicle > Programming and Relearning

Image (Click to enlarge)

SPONSORED LINKS

Saturday, Feb ninth, 2022 AT five:11 PM

Source: https://www.2carpros.com/questions/2004-chevy-trailblazer-body-control-module-location

Posted by: solisentinver1973.blogspot.com

Share this post