Anti-Lock Brake System (ABS) and Stability Control — 2016 workshop reference 2957

B5 CHECK THE WHEEL SPEED SENSOR FOR DAMAGE

Ignition OFF. With the transmission in NEUTRAL, position the vehicle on a hoist. REFER to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation). Disconnect the suspect wheel speed sensor electrical connector. Inspect the wheel speed sensor and harness for abrasions, broken connector tabs or water intrusion.

Is the wheel speed sensor and harness OK?

Yes	GO to B6
No	INSTALL a new wheel speed sensor. REFER to: Front Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation). REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation).

B6 CHECK WHEEL SPEED SENSOR ENCODER FOR DAMAGE

Remove the suspect wheel speed sensor. REFER to: Front Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation). REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation). Inspect the wheel speed sensor encoder for abnormal wear, deformation or contamination.

Is the wheel speed sensor encoder OK?

Yes	GO to B7
No	INSTALL a new wheel hub as necessary. REFER to: Front Wheel Bearing and Wheel Hub (204-01 Front Suspension, Removal and Installation). REFER to: Wheel Bearing and Wheel Hub (204-02 Rear Suspension, Removal and Installation).

B7 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OUTPUT

NOTE: Make sure all test connections are made at the wheel speed sensor before the ignition is set to ON.

NOTE: Use a meter with a min-max feature or recording capabilities to obtain accurate measurements. The ABS module disables the voltage output immediately if the wheel speed sensor is not present.

Disconnect the suspect wheel speed sensor electrical connector. Connect the meter to the suspect wheel speed sensor electrical connector, harness side. Set the meter to measure DC voltage. Set the meter range to greater than 15 volts. Enable the min-max or recording feature on the meter. Ignition ON. For the LH front wheel speed sensor, measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C150-1		C150-2

For the RH front wheel speed sensor, measure:

Source reference 2957

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.