Data Communications

DTC B1016

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 B1016
- Vehicle Identification Number Not Programmed




Circuit/System Description

The body control module (BCM) performs a self test and vehicle identification number (VIN) verification. This DTC indicates that a VIN is not programmed or that the BCM has an internal fault. The internal fault detection is handled inside the control module, no external circuits are involved.


Conditions for Running DTC

The only requirements are that voltage and ground are supplied to the BCM.


Conditions for Setting the DTC

The BCM has detected that the VIN is not programmed.


Action Taken When DTC Sets

The vehicle will not start.


Conditions for Clearing the DTC

* The condition for setting the DTC is no longer present.
* The history DTC will clear after 50 fault-free ignition cycles.
* The DTC can be cleared using a scan tool.



Reference Information

Schematic Reference

Body Control System Schematics (Electrical Diagrams)

Connector End View Reference

Component Connector End Views (Connector Views)

Scan Tool Reference

Control Module References (Programming and Relearning)


Circuit/System Testing

1. Ignition OFF, wait for 30 seconds.
2. Ignition ON, using the scan tool, select the DTC display function.

• If DTC B1016 is set to current, ensure that the BCM VIN is programmed, to achieve this perform a 'Module/ECU Presence Check/VIN Check' using the scan tool. The VIN can also be visually verified by reading the 'Additional Functions/Read ECU Identification' data display.
• If the VIN is not programmed refer to Body Control Module Programming and Setup (Programming and Relearning) for BCM replacement, setup and programming.
• If the BCM fails to transmit the VIN or VIN is not present after setup/programming, replace the BCM, refer to Body Control Module Programming and Setup (Programming and Relearning) for BCM replacement, setup and programming.




Repair Instructions

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


Body Control Module Programming and Setup (Programming and Relearning) for BCM replacement, setup and programming.