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2006 MAZDA MPV
3.0L V6•FWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor486Torque3100Fluid7DTC1789Battery1Maintenance0Recalls2
P0940moderate severityPowertrain

Hydraulic Oil Temperature Sensor Circuit Low

on 2006 Mazda MPV 3.0L V6 · FWD

What this code means

The hydraulic oil temperature sensor signal is lower than expected. This usually results from an open circuit or grounded wiring.

Symptoms

  • Transmission warning light on
  • Poor shift performance
  • Incorrect temperature data

Common causes

  • Faulty oil temperature sensor
  • Open or grounded wiring
  • Loose connector
  • Control module fault

Diagnostic steps

  1. Retrieve diagnostic codes
  2. Inspect wiring for open or ground fault
  3. Check connector integrity
  4. Measure sensor resistance
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