To the top of the document
Orlando
   
GMDE Start Page Load static TOC Load dynamic TOC Help?

Glass Breakage Sensor Malfunction

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    • Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description

The glass breakage sensors are located on the rear side windows. The rear window defogger grid is also used as a glass breakage sensor. The body control module (BCM) monitors the glass breakage sensor signal circuit. If the rear side glass or the rear window is broken, the glass breakage sensor signal circuit will open and the BCM will no longer see ground on the circuit.

Reference Information

Schematic Reference

Theft Deterrent System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Content Theft Deterrent (CTD) Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing
  1. Ignition OFF, disconnect the X6 harness connector at the K9 Body Control Module.
  2. Test for less than 10 Ω between the signal circuit terminal 13 X6 and ground.
    3. [ARW-LISTFAIL]

  3. If greater than 10 Ω

    4. [/ARW-LISTFAIL]
    2.1. Disconnect the harness connector at the E18 Rear Defogger Grid.
    2.2. Test for less than 5 Ω between the ground circuit terminal 1 X2 and ground.
    [ARW-LISTFAIL]

  4. If greater than 5 Ω, repair the open/high resistance in the circuit.

    5. [/ARW-LISTFAIL][ARW-LISTPASS]

  5. If less than 5 Ω

    6. [/ARW-LISTPASS]
    2.3. Disconnect the harness connector at the B159L Glass Breakage Sensor - Left.
    2.4. Test for less than 5 Ω between the control circuit terminal 1 X1 at the E18 Rear Defogger Grid and the signal circuit terminal 1 X1 at the B159L Glass Breakage Sensor - Left.
    [ARW-LISTFAIL]

  6. If greater than 5 Ω, repair the open/high resistance in the circuit.

    7. [/ARW-LISTFAIL][ARW-LISTPASS]

  7. If less than 5 Ω

    8. [/ARW-LISTPASS]
    2.5. Connect the harness connector at the E18 Rear Defogger Grid.
    2.6. Test for less than 10 Ω between the signal circuit terminal 1 X1 at the B159L Glass Breakage Sensor - Left and ground.
    [ARW-LISTFAIL]

  8. If greater than 10 Ω, replace the E18 Rear Defogger Grid.

    9. [/ARW-LISTFAIL][ARW-LISTPASS]

  9. If less than 10 Ω

    10. [/ARW-LISTPASS]
    2.7. Test for less than 5 Ω between the signal circuit terminal 1 X2 at the B159L Glass Breakage Sensor - Left and the signal circuit terminal 1 X1 at the B159R Glass Breakage Sensor - Right.
    [ARW-LISTFAIL]

  10. If greater than 5 Ω, repair the open/high resistance in the circuit.

    11. [/ARW-LISTFAIL][ARW-LISTPASS]

  11. If less than 5 Ω

    12. [/ARW-LISTPASS]
    2.8. Connect the harness connector at the B159L Glass Breakage Sensor - Left.
    2.9. Test for less than 10 Ω between the signal circuit terminal 1 X1 at the B159R Glass Breakage Sensor - Right and ground.
    [ARW-LISTFAIL]

  12. If greater than 10 Ω, replace the B159L Glass Breakage Sensor - Left.

    13. [/ARW-LISTFAIL][ARW-LISTPASS]

  13. If less than 10 Ω

    14. [/ARW-LISTPASS]
    2.10. Test for less than 5 Ω between the signal circuit terminal 1 X2 at the B159R Glass Breakage Sensor - Right and the signal circuit terminal 13 X6 at the K9 Body Control Module.
    [ARW-LISTFAIL]

  14. If greater than 5 Ω, repair the open/high resistance in the circuit.

  15. If less than 5 Ω, replace the B159R Glass Breakage Sensor - Right.

    16. [/ARW-LISTFAIL] [ARW-LISTPASS]

  16. If less than 10 Ω

    17. [/ARW-LISTPASS]
  17. Replace the K9 Body Control Module.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for BCM replacement, setup, and programming

   


© Copyright Chevrolet. All rights reserved