Engine-Codes - Ford - B104D FORD

B104D FORD - Crash Zone Sensor And Other Sensor Circuits Short To Power Supply

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B104D FORD Possible Causes

  • Faulty Front Crash Sensor
  • Front Crash Sensor harness is open or shorted
  • Front Crash Sensor circuit poor electrical connection
  • Faulty Air Bag Control Module

How is the B104D FORD code repair?

Start by checking 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.

What is the cost to diagnose the B104D FORD code

Labor: 1.0

The cost to diagnose the B104D FORD code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Air Bag Warning Light ON

B104D FORD Meaning

The Air Bag Control Module monitors the Front Crash Sensor. The Air Bag Control Module sets the OBDII code when the Front Crash Sensor is not to factory specifications.

More Information

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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.