No | The system is operating correctly at this time. INSPECT both rear wheel speed sensor electrical connectors and the ABS module electrical connector. REPAIR or CLEAN the connector as necessary. ADDRESS the root cause of any connector or pin issues. |
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L2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OUTPUT USING THE ROTUNDA ACTIVE WHEEL SPEED SENSOR TESTER
Ignition OFF. Disconnect the suspect wheel speed sensor electrical connector. Connect the Rotunda Active Wheel Speed Sensor Tester to the wheel speed sensor connectors. Ignition ON. Select the correct system polarity on the Rotunda Active Wheel Speed Sensor Tester and turn the power switch to the ON position.
Is the tester output LED illuminated?
Yes | GO to L3 |
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No | GO to L5 |
L3 CHECK THE WHEEL SPEED SENSOR FOR A SHORT TO VOLTAGE WITH THE ROTUNDA ACTIVE WHEEL SPEED SENSOR TESTER
Observe the current overload LED on the Rotunda Active Wheel Speed Sensor Tester.
Is the current overload LED illuminated?
Yes | REPAIR the suspect wheel speed sensor circuit for a short to voltage. |
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No | GO to L4 |
L4 CHECK THE WHEEL SPEED SENSOR OUTPUT WITH THE ROTUNDA ACTIVE WHEEL SPEED SENSOR TESTER
Raise the suspect wheel until it can spin freely. REFER to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation). While monitoring the Rotunda Active Wheel Speed Sensor Tester, slowly spin the suspect wheel.
Do the sensor output Light-emitting Diodes (LEDs) illuminate and flash?
Yes | The system is operating correctly at this time. INSPECT all wheel speed sensor electrical connectors and the ABS module electrical connectors. REPAIR or CLEAN the connector as necessary. ADDRESS the root cause of any connector or pin issues. |
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No | INSTALL a new wheel speed sensor. REFER to: Rear Wheel Speed Sensor (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation). |
L5 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO BATTERY VOLTAGE
Ignition OFF. Disconnect ABS module C135. Disconnect the suspect wheel speed sensor electrical connector. Ignition ON. For the LH rear wheel speed sensor, measure:
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.