OBD-II code · Powertrain (generic)

P0976 Shift Solenoid B Control Circuit Low

TCM detects voltage on shift solenoid B control circuit below threshold, indicating short to ground.

Is it safe to drive with P0976?

Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.

Common causes

  • Most likelyShort to ground
  • Less likelyConnector pins corroded - high contact resistance
  • Less likelyHarness chafing through insulation

Symptoms

  • Check engine or transmission warning light on
  • Harsh, delayed, or missing shifts
  • Possible limp mode (locked in one gear)
  • Slipping or shuddering during gear changes

Repair at a glance

Difficulty
Hard
DIY friendly
Best left to a mechanic
Typical labour
1.5–6 h
Emissions test
Usually unaffected
Parts involved
Shift Solenoid B, Wiring Harness

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.