Code result
P0959
Auto-Manual Sport Mode Switch Circuit High
Moderate severity
What it means
The auto-shift manual mode circuit reports a intermittent condition. Manual mode shift requests cannot be reliably interpreted.
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
Connector not seated
highOne of the most commonly reported causes for this code — check this first.
Noisy ground reference
mediumA plausible cause — test and verify before replacing parts.
Connector with intermittent contact under vibration
lowLess common, but worth ruling out after the more likely causes.
Related help
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