Code result
P05C7
Economy Mode Switch Circuit Open
Moderate severity
What it means
The economy-mode (ECO) switch input has an open circuit. The ECU cannot read whether the driver requested fuel-saving mode (changes throttle map, transmission shift points, climate strategy).
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
Open in switch or harness
highOne of the most commonly reported causes for this code — check this first.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Cracked solder joint inside the module or sensor
lowLess common, but worth ruling out after the more likely causes.
Related help
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