Engine-Codes - Generic - B1187

B1187 - Short To Ground In Passenger Side Air Bag Module Second Stage Squib Circuit

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

B1187 Possible Causes

  • Faulty Passenger Side Air Bag Second Stage Squib
  • Passenger Side Air Bag Second Stage Squib harness is open or shorted
  • Passenger Side Air Bag Second Stage Squib circuit poor electrical connection
  • Faulty Air Bag Sensor Assembly

How is the B1187 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 B1187 code

Labor: 1.0

The cost to diagnose the B1187 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

B1187 Meaning

The Passenger Side Air Bag Second Stage Squib Circuit consists of the Air Bag Sensor Assembly and Passenger Side Air Bag Module. The squib circuit causes the Passenger Side Air Bag to deploy when deployment conditions are satisfied.

More Information

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Information for specific makes

  • B1187 ACURA Gauge Control Module Lost Communication With The SRS Unit
  • B1187 HONDA Gauge Control Module Lost Communication With The SRS Unit
  • B1187 LEXUS Short To Ground In Passenger Side Air Bag Module Second Stage Squib Circuit
  • B1187 SCION Short To Ground In Passenger Side Air Bag Module Second Stage Squib Circuit
  • B1187 TOYOTA Short To Ground In Passenger Side Air Bag Module Second Stage Squib Circuit

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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.