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C1142high severityChassis

Pressure Sensor Signal Abnormal

on 1993-2001 Subaru Impreza 2.2L H4 · AWD

What this code means

The ABS module sees an implausible signal from the brake pressure sensor. Often caused by sensor drift or a wiring problem.

Symptoms

  • ABS/VDC warning light on
  • Inconsistent brake assist
  • Stability control inactive

Common causes

  • Faulty pressure sensor
  • Loose or corroded connector
  • Wiring short or open
  • Faulty ABS module

Diagnostic steps

  1. Scan for ABS codes
  2. Inspect pressure sensor connector
  3. Monitor live sensor data during braking
  4. Replace sensor if signal invalid

Other Chassis codes on this vehicle

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