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Engine-Codes - Generic - B004A

B004A - Third Row Right Frontal Stage 2 Deployment Control

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

B004A Possible Causes

What does this mean?
  • Faulty Third Row Right Side Airbag
  • Third Row Right Side Airbag harness is open or shorted
  • Third Row Right Side Airbag circuit poor electrical connection

How is the B004A 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 B004A code

Labor: 1.0

The cost to diagnose the B004A 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

B004A Meaning

The Air Bag Sensor Unit (Air Bag Control Module) monitors the Third Row Right Side Airbag. The Air Bag Sensor Unit sets the OBDII code when the Third Row Right Side Airbag 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.

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