Rear Anti-Lock Brake Sensor


Table of contents

C1230 MERCURY Possible Causes

  • Faulty Rear Anti-Lock Brake Sensor
  • Rear Anti-Lock Brake Sensor harness is open or shorted
  • Rear Anti-Lock Brake Sensor circuit poor electrical connection

How do I fix code C1230 MERCURY?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Tech Notes

  User Submitted Video

Cost of diagnosing the C1230 MERCURY code

  The cost of diagnosing the C1230 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C1230 MERCURY Description

  The Anti-Lock Brake System (ABS) Module monitors the Rear Anti-Lock Brake Sensor. The ABS Module sets the OBDII code when the Rear Anti-Lock Brake Sensor is not to factory specifications.

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