PIC6512
Service Bulletin Details
Public Details for: PIC6512
This preliminary information communicates instructions for a dealership technician to properly diagnose a service headlamp system message.
Models from 2023
2023 CHEVROLET CORVETTE |
Models from 2022
2022 CHEVROLET CORVETTE |
Models from 2021
2021 CHEVROLET CORVETTE |
Models from 2020
2020 CHEVROLET CORVETTE |
Bulletin No.: PIC6512 Published date: 07/17/2023 Preliminary Information PIC6512 Diagnostic Aid: Service Headlamp System message displayed in the DIC Models Brand: Chevrolet Model: Model Years: Corvette 2020 - 2023 VIN: from All Engine: to All All Transmissions: All Involved Region or North America Country Additional E60 RPO Some customers may comment on a "Service Headlamp System" message displayed on the DIC. This Condition may be displayed without any noticeable symptoms on the vehicle itself. All headlamp and exterior lighting functions may be working correctly and no DTCs will be found by the servicing technician. If this concern is encountered while working on one of the vehicles listed, dealership technicians should closely inspect all areas of LIN bus 13 / circuit 2859 that runs in between the headlamp capsules and the Body Control Module (BCM). The purpose of this circuit is to command the leveling portion of the headlamps up and down in response to the front suspension lift system activation (RPO E60) that certain vehicles are equipped with. When the vehicle is rst started, the BCM sends out a test signal to Concern each headlamp to con rm the LIN bus is working correctly. If the message is not received and responded to, the message is displayed in the DIC. There is no way to tell where in this circuit a problem may exist. To correctly diagnose this concern, the technician must physically inspect the entire circuit, on both sides of the vehicle, looking for any opens or ground out concerns. Warranty Information Because the repair will depend on what is actually found, please use the labor op that most closely matches the repair procedure that was performed. Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. Version History Version 1 Modi ed 07/17/2023 - Created on. © 2023 General Motors. All Rights Reserved.