Error code

OBD2 P0963

OBD2P0963
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Pressure Control Solenoid 'A' Control Circuit High.

Severity

moderateYou can still drive the vehicle, but it will be uncomfortable and may cause further damage.

Summary

P0963 indicates that there is an issue with the Pressure Control Solenoid 'A' control circuit being high in voltage, typically located within the transmission.

Symptoms

  • Harsh shifting or banging into gear
  • Missing gears or limited performance

Common Causes

  • Wiring issues such as damage from road debris or chafing
  • Corrosion or water entry in connectors and pins
  • Faulty pressure control solenoid valve (PCS Valve)
  • Short circuit causing excessive voltage input

Diagnosis

  1. Inspect wire harness for physical damage
  2. Check connectors for corrosion or water entry
  3. Measure resistance across terminals to diagnose circuit issues

Fixes

  • Repair damaged wiring and ensure proper connector seating
  • Replace faulty pressure control solenoid valve if necessary

FAQ

What should I do if my transmission is bang-shifting?

You should have it repaired immediately to prevent further and more expensive damage.

Can this issue be fixed by a DIYer or does it require professional help?

DIY repairs may involve opening the transmission, which can be complicated. Some prefer to visit professionals for internal transmission work.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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