Chevrolet C121D: Improper Shutdown
Is your scanner showing Chevrolet C121D?
No worries. We'll show you what it means and how to deal with it.
Chevrolet C121D: Improper Shutdown
OVERVIEWWhat Does The Chevrolet C121D Code Mean?
Ignition ON. The ignition voltage is greater than 10 volts. The EBCM is initializing.
What Are The Potential Causes Of The Chevrolet C121D Code?
A Key Off cycle was interrupted before completion, or power was removed from the module with the key in the ON position, vehicle moving and brake is applied.
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Dorman 599-705 Remanufactured ABS Control Module for Select Chevrolet/GMC Models (Renewed)
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Chevrolet Volt Hybrid DTC – OBDG01 HYBRID Diagnostics Document, page 588.
