Code result
P0956
Auto-Manual Sport Mode Switch Circuit/Open
Moderate severity
What it means
The auto-shift manual mode circuit reports a range/performance 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
Switch contacts aged
highOne of the most commonly reported causes for this code — check this first.
High-resistance contact
mediumA plausible cause — test and verify before replacing parts.
Sensor element aged beyond calibration window
lowLess common, but worth ruling out after the more likely causes.
Related help
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