What causes P1221 on a Ford?

Failed wheel speed sensor shared with ABS Faulty traction control switch ABS module fault disabling traction Steering angle sensor fault Low system voltage during the self-check

How do I fix P1221 on a Ford?

Scan the ABS module for companion codes first Test wheel speed signals on a roll test Check the traction switch operation Verify charging voltage Repair the ABS fault — traction usually returns with it

P1221 Traction Control System Malfunction

Q: What does P1221 mean on a Ford?

P1221 — Traction Control System Malfunction. Applies to Explorer, Expedition, Mustang with traction control.

Category: Chassis
Severity: Check Engine Light
Applies to: Explorer, Expedition, Mustang with traction control

What does P1221 mean on a Ford?

P1221 — Traction Control System Malfunction. This Ford-enhanced code applies to Explorer, Expedition, Mustang with traction control.

Common causes of P1221

Failed wheel speed sensor shared with ABS
Faulty traction control switch
ABS module fault disabling traction
Steering angle sensor fault
Low system voltage during the self-check

How to fix P1221

Scan the ABS module for companion codes first
Test wheel speed signals on a roll test
Check the traction switch operation
Verify charging voltage
Repair the ABS fault — traction usually returns with it