What causes C1233 on a Ford?

Failed left front wheel speed sensor Damaged sensor wiring chafed by the suspension or tire Cracked or missing tone ring tooth on the hub or axle Excessive wheel bearing play changing the sensor gap Corroded ABS module connector pins

How do I fix C1233 on a Ford?

Read all four wheel speeds on a scan tool during a slow roll test Inspect the left front sensor wiring along its full suspension routing Check the tone ring for cracks, missing teeth and debris Test wheel bearing play — replace the hub if loose Replace the sensor after confirming its air gap and circuit

C1233 Left Front Wheel Speed Input Signal Missing

Q: What does C1233 mean on a Ford?

C1233 — Left Front Wheel Speed Input Signal Missing. Applies to Focus, F-150, Explorer, Ranger with ABS wheel speed monitoring.

Category: Chassis
Severity: Check Engine Light
Applies to: Focus, F-150, Explorer, Ranger with ABS wheel speed monitoring

What does C1233 mean on a Ford?

C1233 — Left Front Wheel Speed Input Signal Missing. This Ford-enhanced code applies to Focus, F-150, Explorer, Ranger with ABS wheel speed monitoring.

Common causes of C1233

Failed left front wheel speed sensor
Damaged sensor wiring chafed by the suspension or tire
Cracked or missing tone ring tooth on the hub or axle
Excessive wheel bearing play changing the sensor gap
Corroded ABS module connector pins

How to fix C1233

Read all four wheel speeds on a scan tool during a slow roll test
Inspect the left front sensor wiring along its full suspension routing
Check the tone ring for cracks, missing teeth and debris
Test wheel bearing play — replace the hub if loose
Replace the sensor after confirming its air gap and circuit