Engine-Codes - Generic - B1877

B1877 Code - Short to Ground in Passenger Side Front Seat Cushion Squib Circuit

- Code Popularity: 35,382 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the Code B1877?

  • Faulty Front Seat Airbag Sub-Assembly (Front Seat Cushion Squib Right)
  • Front Seat Airbag Sub-Assembly harness is open or shorted
  • Front Seat Airbag Sub-Assembly circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the B1877 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.

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What is the Cost to Diagnose the Code B1877?

Labor: 1.0

The cost to diagnose the B1877 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.

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What are Code B1877 Possible Symptoms?

  • Air Bag Warning Light ON

What Does the B1877 Code Mean?

The Front Seat Cushion Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Front Seat Airbag Sub-Assembly. This circuit instructs the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected in the Front Seat Cushion Squib Right (RH).

B1877 Code - Short to Ground in Passenger Side Front Seat Cushion Squib Circuit

Need more Information on the B1877 Code?

Need more information on how to fix the B1877 code? Get Access to Factory Service Manuals

Code B1877 Information for Specific Makes

  • B1877 Ford Seat Belt Driver Pretensioner Circuit Open
  • B1877 Lexus Short to Ground in Passenger Side Front Seat Cushion Squib Circuit  📷
  • B1877 Lincoln Seat Belt Driver Pretensioner Circuit Open
  • B1877 Mazda Seat Belt Driver Pretensioner Circuit Open
  • B1877 Mercury Seat Belt Driver Pretensioner Circuit Open
  • B1877 Scion Short to Ground in Passenger Side Front Seat Cushion Squib Circuit  📷
  • B1877 Toyota Short to Ground in Passenger Side Front Seat Cushion 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.

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