OBD Guide

P2158

Vehicle Speed Sensor B Circuit

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect operation of the speedometer
  • Disabling cruise control
  • Gear shifting problems
  • Check Engine Light Illuminates
  • Unstable speed readings on the dashboard

Causes

  • Speed sensor B fault
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • ECU malfunction

How to Fix

  1. Check the integrity of the sensor wiring
  2. Check sensor connections and connectors
  3. Test the speed sensor with a multimeter
  4. Replace the speed sensor if necessary
  5. Check and reflash the ECU if there are no other faults

Related codes

Error P2158 by Vehicle Brand