C0240

Powertrain Control Module Traction Control Not Allowed

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Traction control system disabled
Reduced engine efficiency
Acceleration problems

Causes

Faulty wheel sensors (ABS)
Problems with the traction control wiring harness
Engine control module (PCM) malfunction
Software errors in PCM
Problems with wheel speed sensors

How to Fix

Carry out diagnostics of the ABS and TCS systems
Check wiring harness and sensor connections
Read error codes from ABS control unit
Check and, if necessary, replace wheel speed sensors
Update or reflash PCM software
Replace PCM if necessary

Related codes

C0241 C0242 C0243 P0700