Some owners of 2014-2018 Corvettes may comment about a Service Rear Differential message displayed on the DIC (driver information center).
Some owners of 2014-2018 Corvettes may comment about a Service Rear Differential message displayed on the DIC (driver information center).
The technician may find DTC C0407 set. This condition may be caused by a software anomaly in the Rear Differential Clutch Control Module (RDCCM). The RDCCM must be updated to the latest software calibrations.
Stable battery voltage is critical during programming. Install the EL-49642 SPS Programming Support Tool #PSC-550 to maintain system voltage.
If not available, connect a fully charged 12V jumper or booster pack that is disconnected from an AC voltage supply. Do NOT connect to a battery charger.
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