P0950: ASM Control Circuit [Up / Down / Auto / etc]

What does P0950 mean?

P0950 is a diagnostic trouble code indicating "ASM Control Circuit [Up / Down / Auto / etc]". This code relates to your vehicle's engine electronics and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Symptoms you may notice

• Check engine light (MIL) illuminated on dashboard
• Intermittent warning lights
• Erratic gauge readings

Common causes

• Faulty engine electronics component
• Wiring or connector issue in the related circuit
• Failed sensor providing incorrect readings
• Software/calibration issue requiring ECU update
• Related component causing secondary fault

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.