AutoCodes
 
OBDII Code List
 
B1211 MERCURY

B1211 MERCURY - Driver Seatbelt Retractor Pretensioner Deployment Control Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

B1211 MERCURY Possible Causes

  • Faulty Driver Seatbelt Retractor Pretensioner
  • Driver Seatbelt Retractor Pretensioner harness is open or shorted
  • Driver Seatbelt Retractor Pretensioner circuit poor electrical connection
  • Faulty Restraints Control Module (RCM)

First diagnose B1211 MERCURY code

    Check 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 terminals.

B1211 MERCURY Tech Notes

B1211:11 Driver Seatbelt Retractor Pretensioner Deployment Control Circuit Short to Ground
B1211:12 Driver Seatbelt Retractor Pretensioner Deployment Control Circuit Short to Battery
B1211:13 Driver Seatbelt Retractor Pretensioner Deployment Control Circuit Open
B1211:1A Driver Seatbelt Retractor Pretensioner Deployment Control Circuit Resistance Below Threshold

Cost of diagnosing the B1211 MERCURY code

    Labor: 1.0

    The cost of diagnosing the B1211 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

B1211 MERCURY Possible Symptoms

  • Air Bag Warning Light ON

B1211 Mercury Description

The Restraints Control Module (RCM) analyzes the deployment loop resistance to determine if a fault exists. The value displayed in the PID is the deployment loop resistance measured by the RCM. If the value displayed is lower or higher than the desired range, the RCM can set a Diagnostic Trouble Code (DTC). As the deployment loop resistance drifts farther outside the desired range, the chance for a DTC increases. Small variations in resistance can occur due to the effect of road vibrations on terminal fit. Crimps and terminals can be affected by stress and harness movement and can cause an increase in resistance due to wire strain. These variables can result in an intermittent fault. For this reason, the test requires the PID value to be within the desired range before the fault is considered repaired, regardless if the module is reporting an on-demand DTC at the time of diagnosis. Following this direction helps make sure that minor changes in resistance do not create a repeat concern. The RCM sets the OBDII code when the Driver Seatbelt Buckle Pretensioner is not to factory specifications.
OBDII Code B1211 Mercury - Driver Seatbelt Retractor Pretensioner Deployment Control Circuit - AutoCodes.com

B1211 MERCURY More Information

Need more information on how to fix the B1211 MERCURY code?
Get Access to Factory Service Manuals

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.

Need more help?

Get the B1211 Mercury code diagnosed by a professional: Find a repair shop in your area

Related Information

B1211 MERCURY Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the B1211 Mercury code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧