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2013 NISSAN ALTIMA
3.5L V6 VQ35DE•FWD•CVT•gas•VQ35DE
12 active safety recalls on this vehicle — view recalls
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Repairs0Labor466Torque654Fluid7DTC1969Battery1Maintenance0Recalls12
P0678low severityPowertrain

Cylinder 8 Glow Plug Circuit

on 2013 Nissan Altima 3.5L V6 VQ35DE · FWD

What this code means

The PCM detected a fault in the glow plug control circuit for cylinder 8. Failed glow plugs cause difficult cold starts and excessive smoke.

Symptoms

  • Difficult cold starting
  • White smoke when cold
  • Warning light active

Common causes

  • Faulty glow plug cylinder 8
  • Corroded glow plug harness
  • Bad glow plug control module
  • Blown fuse

Diagnostic steps

  1. Scan module for fault codes
  2. Measure cylinder 8 glow plug resistance
  3. Check wiring for damage
  4. Test control module command signal
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