C116A FORD - ABS Pressure Transducer/Brake Switch Mismatch

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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C116A FORD Possible Causes

  • Faulty Hydraulic Control Unit (HCU)
  • Hydraulic Control Unit (HCU) harness is open or shorted
  • Hydraulic Control Unit (HCU) circuit poor electrical connection

First diagnose C116A FORD code

    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 terminals.

Cost of diagnosing the C116A FORD code

    Labor: 1.0

    The cost of diagnosing the C116A FORD 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.

C116A FORD Possible Symptoms

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

C116a Ford Description

The pressure transducer is integral to the Hydraulic Control Unit (HCU). The pressure transducer sends a signal to the ABS module that varies in relation to the amount of pressure applied to the brake pedal. The more pressure that is applied, the greater the signal sent to the Anti-Lock Brake System (ABS) module. If a new pressure transducer is needed, then a new HCU must be installed.

When the brake pedal is pressed, the stop lamp switch closes and a voltage is sent to the Powertrain Control Module (PCM). The PCM then sends a message over the High-Speed Controller Area Network (HS-CAN) to the ABS module indicating that the brake pedal has been pressed. DTCs set in the ignition cycle can only be cleared by cycling the ignition off and on once the fault has been corrected.

This DTC sets in every ignition cycle if during normal operation, the stop lamp switch message does not match the HCU transducer, both signals have to agree about whether the brakes are being applied or not.

OBDII Code C116a Ford - ABS Pressure Transducer/Brake Switch Mismatch - AutoCodes.com

C116A FORD More Information

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