OBD Guide

P2776

Upshift Switch Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Problems with upshifting
  • Check Engine light comes on
  • The car may remain in a lower gear
  • Unstable transmission operation
  • Possible jerking when trying to switch

Causes

  • Overdrive switch malfunction
  • Open or short circuit in the circuit
  • Poor connection or corroded contacts
  • Wiring harness damage
  • Transmission control module (TCM) malfunction

How to Fix

  1. Check the condition of the overdrive switch
  2. Inspect the chain for damage and corrosion
  3. Check connections and terminal tightness
  4. Test circuit resistance
  5. If necessary, replace the switch or repair the wiring

Related codes

Error P2776 by Vehicle Brand