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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
P1755moderate severityPowertrain

Intermediate Speed Sensor (ISS) Circuit

on 2006 Mazda MPV 3.0L V6 · FWD

What this code means

The transmission's intermediate/input speed sensor circuit is reading incorrectly or has failed. No direct generic OBD equivalent, similar to P0715 input speed sensor faults.

Symptoms

  • Harsh or erratic shifting
  • Transmission warning light on
  • Speedometer or shift issues

Common causes

  • Faulty intermediate speed sensor
  • Damaged sensor wiring or connector
  • Corroded connector terminals
  • Failed transmission control module

Diagnostic steps

  1. Scan for stored codes and freeze frame
  2. Inspect ISS wiring and connector
  3. Measure sensor resistance and signal
  4. Replace ISS if out of spec
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