Back to 2012 Toyota Highlander

2012 TOYOTA HIGHLANDER

3.3L V6 HybridAWDAUTOMATIChybrid
2 active safety recalls on this vehicle — view recalls
Repairs0Labor635Torque3678Fluid9DTC906Battery0Maintenance0Recalls2
P3225high severityPowertrain

Motor/Generator Coolant Pump Control Circuit

on 2012 Toyota Highlander 3.3L V6 Hybrid · AWD

What this code means

The coolant pump that provides cooling to the motor/generator has a control circuit fault.

Symptoms

  • Motor temperature rising
  • Reduced motor power output
  • Motor protection mode may activate
  • Coolant pump not running
  • Overtemperature warning

Common causes

  • Coolant pump motor failure
  • Pump control relay fault
  • Wiring damage to pump
  • Pump control module failure
  • Fuse blown for pump circuit

Diagnostic steps

  1. Command coolant pump on via scan tool
  2. Check pump motor voltage supply
  3. Test pump relay operation
  4. Measure pump motor current draw
  5. Inspect pump wiring and fuse

Repair notes

Replace motor coolant pump or repair control circuit. Verify motor temperatures return to normal after repair.

Other Powertrain codes on this vehicle

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