OBD
C1000
Manufacturer Controlled DTC
What it means
C1000 means Manufacturer Controlled DTC.
Check these first
- A failed brake pedal switch 1
- An open or short in the brake pedal switch 1 circuit
- A poor electrical connection at the brake pedal switch 1 connector
- A failed totally integrated power module
What to do next
- Read the brake pedal switch state on a scan tool
- Inspect the brake pedal switch 1 connector and wiring
- Test the brake pedal switch 1 circuit for open and short faults
- Check the totally integrated power module for faults
- Replace the brake pedal switch 1 if the circuit tests good
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.