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2017 CHEVROLET IMPALA

2.5L I4 EcotecAWDAUTOMATICgas
Repairs0Labor990Torque7715Fluid15DTC1938Battery2Maintenance0Recalls0
C0040moderate severityChassis

Right Front Wheel Speed Sensor Circuit

on 2017 Chevrolet Impala 2.5L I4 Ecotec · AWD

What this code means

Malfunction in the right front ABS wheel speed sensor.

Symptoms

  • ABS light on
  • Traction control light on
  • ABS inactive

Common causes

  • Faulty sensor
  • Tone ring damage
  • Wiring issue
  • Wheel bearing failure

Diagnostic steps

  1. Test sensor
  2. Inspect tone ring
  3. Check wiring
  4. Check bearing

Repair notes

Replace sensor. Check bearing and tone ring.

Other Chassis codes on this vehicle

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