OBD Guide

P2774

Four Wheel Drive (4WD) Low Switch Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Incorrect all-wheel drive operation
  • Inability to downshift
  • The all-wheel drive system goes into emergency mode

Causes

  • Short circuit to positive in the switch circuit
  • 4WD Low switch malfunction
  • Wiring harness damage
  • Switch connector problems
  • Malfunction of the four-wheel drive control unit

How to Fix

  1. Check the continuity of the 4WD Low switch circuit
  2. Check the resistance of the switch in different positions
  3. Inspect connectors and wiring harness for damage
  4. Check voltage in switch circuit
  5. If necessary, replace the switch or repair the wiring

Related codes

Error P2774 by Vehicle Brand