Honda Insight ZE2

The 1.3L IMA hybrid system has two critical age-related weaknesses: the NiMH high-voltage battery degrades significantly from around 130,000–150,000 km. DC-DC converter failures as a consequence are typical.

• !! IMA high-voltage battery degradation — total failure possible from 130,000 km

  The NiMH high-voltage battery of the IMA system degrades over time due to cell imbalance. From around 130,000–150,000 km, capacity drops significantly. A new Honda battery costs €3,300–€5,500.

  Symptoms: IMA warning light on, reduced hybrid output, engine runs on petrol alone more frequently
  1,500–5,500 $
  Ad Honda IMA battery replacementHonda Civic Hybrid NiMH battery1D100-RMX
• !! DC-DC converter failure — 12V battery no longer charges from 130,000 km

  When the IMA high-voltage battery fails, the DC-DC converter can no longer charge the 12V battery. The vehicle becomes unable to start. Converter replacement costs around €2,150.

  Symptoms: 12V battery drains while driving, vehicle won't start, IMA warning light on
  1,500–2,500 $
  Ad Honda IMA DC-DC converterHonda Civic Hybrid DC converter1A300-RMX
• !! IMA fault code prevents MOT/vehicle inspection pass from 130,000 km

  Active IMA fault codes cause an MOT failure as the OBD readiness monitors cannot be fully set.

  Symptoms: IMA warning light permanently active, OBD readiness not set, MOT/vehicle inspection fails
  0–500 $
  Ad Honda IMA OBD fault code clearHonda Civic Hybrid MOT IMA