Code result
C0800
Control Module Power Circuit
Moderate severity
What it means
The chassis control module has detected that the supply voltage is below the operating threshold required for ABS, ESP or steering systems. Many chassis functions are limited or disabled until the voltage returns to a normal range.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Battery weak or discharged
highOne of the most commonly reported causes for this code — check this first.
Alternator output fault
mediumA plausible cause — test and verify before replacing parts.
High-resistance ground or supply connection
lowLess common, but worth ruling out after the more likely causes.
Related help
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