Object Detection

DTC B1015

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.



DTC Descriptor
DTC B1015 00
- Vehicle Identification Number (VIN) Information Error




Circuit/System Description

When the ignition is turned ON, the object alarm module receives and stores the vehicle identification number (VIN) from the body control module (BCM). The BCM sends serial data messages to the object alarm module with the VIN information. The object alarm module will compare the VIN received to VIN stored in memory. If the VIN stored in memory does not match the VIN transmitted by the BCM, the object alarm module sets a DTC and commands the red indicator ON to indicate a system malfunction.


Conditions for Running the DTC

Ignition voltage is between 9-16 volts.


Conditions for Setting the DTC

* The object detection module VIN digits does not match the digits stored in the BCM.
* The VIN stored in the BCM does not match the vehicle VIN.



Action Taken When the DTC Sets

* The object alarm system is disabled.
* The object alarm module commands ON the information center telltale red indicator.
* The object alarm module will send a GMLAN serial data message to the instrument panel Cluster (IPC) to display SERVICE PARK ASSIST message on the driver information center (DIC), and the chime will sound.



Conditions for Clearing the DTC

* The DTC becomes history when the conditions for setting the DTC are no longer present. The VIN that is stored in the object alarm module matches the VIN stored in the BCM.
* The history DTC clears after 40 malfunction-free warm-up cycles.



Reference Information
Schematic Reference

Object Detection Schematics ([1][2]Collision Avoidance and Parking Assist Systems)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Object Detection Description and Operation (RPA) (Object Detection Description and Operation (RPA))Object Detection Description and Operation (PIDS) (Object Detection Description and Operation (PIDS))
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for Scan Tool Information


Circuit/System Testing

1. With a scan tool, verify the VIN stored in the BCM matches the vehicle VIN.

• If the VIN does not match, program the BCM with the correct VIN.

2. With a scan tool, verify the VIN stored in the object alarm module matches the vehicle VIN.

• If the VIN does not match, program the object alarm module with the correct VIN.




Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.


Control Module References (Programming and Relearning) for the BCM and object alarm module replacement, setup, and programming