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P0959: Auto Shift Manual Mode Circuit Intermittent

Severity
High
System
Transmission

What Does P0959 Mean?

P0959 is a diagnostic trouble code indicating: Auto Shift Manual Mode Circuit Intermittent. This code relates to the transmission system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0959

Common Causes

Frequently Asked Questions

What does P0959 mean?
P0959 indicates: Auto Shift Manual Mode Circuit Intermittent. The vehicle's computer has detected that the Auto Shift Manual Mode is not operating within its expected parameters and stored this diagnostic trouble code.
Can I drive with code P0959?
Only short distances if absolutely necessary. P0959 affects a critical system and should be diagnosed within a few days to avoid further damage.
How much does it cost to fix P0959?
Repair costs for P0959 typically range from $30 to $500, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

  • 🔧 Inspect and reseat all Auto Shift Manual Mode connectors
  • 🔧 Repair chafed or damaged wiring in Auto Shift Manual Mode circuit
  • 🔧 Replace Auto Shift Manual Mode if failing intermittently
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

P0900 Clutch A Actuator Control Circuit/Open P0901 Clutch A Actuator Control Circuit Range/Performance P0902 Clutch A Actuator Control Circuit Low P0903 Clutch A Actuator Control Circuit High P0904 Gate Select Position Circuit A P0905 Gate Select Position Circuit A Range/Performance P0906 Gate Select Position Circuit A Low P0907 Gate Select Position Circuit A High P0908 Gate Select Position Circuit A Intermittent P0909 Gate Select Control Error