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2010 HONDA CROSSTOUR
3.5L V6 J35•FWD•AUTOMATIC•gas
1 active safety recall on this vehicle — view recalls
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Repairs0Labor478Torque684Fluid7DTC1900Battery1Maintenance0Recalls1
P1486moderate severityPowertrain

Thermostat Range/Performance Problem

on 2010 Honda Crosstour 3.5L V6 J35 · FWD

What this code means

The engine coolant isn't reaching or holding the expected temperature, pointing to a thermostat issue. Similar to OBD generic P0128.

Symptoms

  • Check engine light on
  • Slow engine warm-up
  • Poor heater output

Common causes

  • Stuck-open thermostat
  • Faulty coolant temp sensor
  • Low coolant level
  • Cooling system fault

Diagnostic steps

  1. Scan and confirm P1486
  2. Monitor coolant temp during warm-up
  3. Inspect thermostat operation
  4. Verify coolant temp sensor readings
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