OBD code B1291 indicates an issue with Park Assist Sensor 4 circuit.
Symptoms include the Engine Light being ON.
The cause could be a faulty Park Assist Sensor 4, open/shorted harness, poor electrical connection, or a faulty Park Assist Module.
This is a moderate issue.
To fix, inspect wiring harness, connectors, and components for damage, and check connector pins for any issues.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the b1291 OBD Code
The vehicle displays an airbag warning light on the dashboard with fault code B1291 stored.
- Symptoms: Service Engine Soon Warning Light ON.
- Vehicle may experience intermittent starting issues.
- Radio or other electrical components may not work properly.
- Horn may not function.
- Power windows may not operate correctly.
Causes of the b1291 OBD Code
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Possible triggers for fault code B1291 include issues with the airbag system or seat belt pretensioner.
- B1291 can be caused by a faulty Park Assist Sensor 4.
- A Park Assist Sensor 4 harness that is open or shorted.
- A Park Assist Sensor 4 circuit with a poor electrical connection.
- Or a faulty Park Assist Module.
Fixing Error Code b1291 Step By Step
Address the issue by inspecting the airbag module power supply circuit for fault code B1291.
- To fix OBDII code B1291, first, review the possible causes related to the code.
- Visually inspect the wiring harness and connectors associated with the code.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Repair or replace any damaged wiring or connectors found during the inspection.
- Clear the fault code from the vehicle’s computer using a scan tool.
- Test drive the vehicle to verify if the code returns.
- If the code persists, further diagnosis may be needed to pinpoint the exact cause of the issue.
Cost Of Fixing b1291 Fault Code
Diagnosing and repairing fault code B1291 may involve inspecting and replacing the airbag module.
The cost to diagnose and fix OBD code B1291 depends on the estimated 1. 0hour repair time.
Labor rates range from $75 to $150 per hour, so the total cost could be between $75 and $150. Factors like shop rates and complexity of the repair can influence the final cost.
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Details of the b1291 OBD Code
B1291 code indicates a low battery voltage condition in the vehicle’s sensor module.
OBD code B1291 means a low battery voltage condition has been detected by the body control module (BCM).
This code is triggered by the BCM monitoring the voltage level from the vehicle’s battery.
The BCM is responsible for managing various electrical functions in the vehicle, such as interior lighting, power windows, and door locks.
When the BCM detects that the battery voltage is below a specified threshold, it will set code B1291 to indicate a potential issue with the battery or charging system.
Mechanic’s Tech Notes
Code B1291 indicates a low battery voltage condition in the vehicle’s airbag control module.
OBDII code B1291 indicates a fault with the transmission control module (TCM) power source.
To diagnose, use a voltmeter to check TCM power and ground connections for proper voltage levels.
Utilize a scan tool to confirm TCM communication over the Controller Area Network (CAN) network.
Visually inspect wiring harnesses and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.
If necessary, consider reprogramming or reflashing the TCM.
This comprehensive approach will help pinpoint the issue and guide you towards an effective repair strategy.
FAQ
OBD code B1291 indicates an issue with Park Assist Sensor 4. Symptoms include Engine Light ON. Fix: Check sensor, harness, connections for faults.
Common symptoms of OBD code B1291 include Engine Light ON. Causes may be a faulty Park Assist Sensor 4 or related wiring issues. Inspect and repair as needed.
Diagnose OBD code B1291 by checking Park Assist Sensor 4 and its wiring for faults. Inspect connectors for damage or corrosion. Repair as needed.
Wrap Up
If your vehicle displays OBD code b1291, you may experience issues with the airbag system, such as an airbag warning light staying on.
This code typically indicates a fault with the airbag control module or a related sensor, possibly due to a wiring problem or a faulty component within the system.
To address OBD code b1291, start by inspecting the wiring harness and connectors associated with the airbag control module.
Check for any signs of damage, corrosion, or loose connections.
If the wiring appears intact, consider testing the airbag control module and relevant sensors for proper functionality
