P0858

Traction Control Input Signal Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check engine light is on
Disabling the traction control system
Reduced braking performance
Wheel slipping during acceleration

Causes

Open or short circuit in the traction control system circuit
Malfunction of wheel speed sensors
Problems with the TCS module
Bad contacts in connectors
Engine control unit malfunction

How to Fix

Check the integrity of wiring and connections
Diagnose wheel speed sensors
Check TCS module for faults
Clean connector contacts
Scan the engine control unit for errors

Related codes

P0856 P0857 P0859