P1320high severityPowertrain

Ignition Signal Primary

on 2016 Infiniti Q70L 3.7L V6 · RWD

What this code means

ECM not receiving proper signal from ignition power transistor.

Symptoms

  • CEL
  • Misfires
  • Rough idle
  • Stalling
  • Hesitation
  • Hard start

Common causes

  • Faulty ignition coil(s)
  • Poor ground
  • Damaged coil wiring
  • Faulty power transistor

Diagnostic steps

  1. Test each coil
  2. Check grounds
  3. Inspect wiring
  4. Test power transistor

Repair notes

Replace faulty ignition coil(s).

Other Powertrain codes on this vehicle

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