B1210 - Side Collision Detection

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Air Bag Diagnosis Sensor Unit (ACU)
  • Air Bag Diagnosis Sensor Unit (ACU) harness is open or shorted
  • Air Bag Diagnosis Sensor Unit (ACU) circuit poor electrical connection

Tech notes

After a side collision, all the deployed components and the Air Bag Diagnosis Sensor Unit (ACU) must need to be replaced. If there is no collision, then the problem is with the Air Bag Diagnosis Sensor Unit (ACU)

Possible symptoms

  • Air Bag Warning Light ON

B1210 Description

Detects component damage resulting from a side collision, brinks or illuminates the air bag warning lamp to inform the driver.

The side air bag and curtain air bag are operated by the decision of the Air Bag Diagnosis Sensor Unit (ACU) signal of the side collision.

The Side Collision Detection consists of the satellite sensor, Air Bag Diagnosis Sensor Unit (ACU), front side air bag and side curtain air bag.

OBDII Code B1210 - Side Collision Detection - AutoCodes.com

B1210 Information for specific makes

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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B1210 Comments

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