P1127high severityPowertrain

ETCS Actuator Power Source Circuit

on 2002 Toyota Sequoia 4.7L V8 · 4WD

What this code means

The power source voltage for the ETCS actuator is abnormal.

Symptoms

  • CEL
  • Reduced power
  • Throttle unresponsive
  • Limp mode

Common causes

  • Low battery voltage
  • Poor ground
  • Damaged wiring
  • Blown ETCS fuse

Diagnostic steps

  1. Check battery voltage
  2. Test ground connections
  3. Inspect fuse
  4. Check wiring

Repair notes

Repair power supply or replace fuse.

Other Powertrain codes on this vehicle

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