P1305high severityPowertrain

Igniter Circuit Malfunction No. 2

on 2012 Toyota Highlander 3.5L V6 · AWD

What this code means

The ECM is not receiving the IGF signal from ignition coil No. 2.

Symptoms

  • CEL
  • Misfire cylinder 2
  • Rough idle
  • Power loss

Common causes

  • Faulty ignition coil
  • Damaged wiring
  • Corroded boot
  • Bad spark plug

Diagnostic steps

  1. Test coil resistance
  2. Swap coils
  3. Check spark plug
  4. Inspect wiring

Repair notes

Replace ignition coil No. 2.

Other Powertrain codes on this vehicle

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