Engine-Codes - Generic - B1157

B1157 Code - Front Airbag Sensor RH Malfunction

- Code Popularity: 4,235 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1157?

  • Faulty Front Airbag Sensor (Right Side)
  • Front Airbag Sensor harness is open or shorted
  • Front Airbag Sensor circuit poor electrical connection
  • Faulty Airbag Sensor Assembly

|How to Fix the B1157 Code?

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 Code B1157?

Labor: 1.0

The cost to diagnose the B1157 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Does your Car have Safety Recalls? → Check here

|What are Code B1157 Possible Symptoms?

  • Air Bag Warning Light ON

|What Does the B1157 Code Mean?

The Front Airbag Sensor (Right Side) circuit consists of the Airbag Sensor Assembly and Front Airbag Sensor RH. The Diagnostic Trouble Code (DTC) B1157 is recorded when a malfunction is detected in the Front Airbag Sensor RH circuit.

B1157 Code - Front Airbag Sensor RH Malfunction

|Need more Information on the B1157 Code?

Need more information on how to fix the B1157 code? Get Access to Factory Service Manuals

|Code B1157 Information for Specific Makes

  • B1157 Acura Gauge Control Module Lost Communication With Multiplex Integrated Control Unit
  • B1157 Honda Gauge Control Module Lost Communication With Multiplex Integrated Control Unit
  • B1157 Lexus Front Airbag Sensor RH Malfunction
  • B1157 Scion Front Airbag Sensor RH Malfunction
  • B1157 Toyota Front Airbag Sensor RH Malfunction

|Need Help with the B1157 Code?

Get the B1157 code diagnosed by a professional: Find a repair shop in your area

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.