OBD code B1572 indicates an issue with the Door Ajar Left Right Switch circuit in the Smart Junction Box (SJB).
Symptoms include the Engine Light being ON.
The problem is commonly caused by a faulty switch or wiring issues.
It is not a severe issue but should be addressed promptly.
To fix it, inspect the wiring harness, connectors, and switch for any damage or poor connections.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the b1572 OBD Code
The vehicle displays an airbag warning light on the dashboard.
- Symptoms: Service Engine Soon Warning Light ON.
- Possible loss of communication with the rearview mirror module.
Causes of the b1572 OBD Code
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B1572 code typically indicates a fault in the vehicle’s seat belt pretensioner circuit.
- B1572 can be caused by a Faulty Door Ajar Left Right Switch.
- A Door Ajar Left Right Switch harness that is open or shorted.
- A Door Ajar Left Right Switch circuit with poor electrical connection.
- Or a Faulty Smart Junction Box (SJB).
Fixing Error Code b1572 Step By Step
To address fault code B1572, inspect and repair the seat belt pretensioner circuit as needed.
- To fix OBDII code B1572, first, review the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the code.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no issues are found during the visual inspection, proceed to test the circuit continuity of the affected components.
- Replace any faulty wiring or connectors as necessary.
- Clear the fault code from the vehicle’s computer using a scan tool.
- Finally, perform a road test to ensure the code does not return, indicating a successful repair.
Cost Of Fixing b1572 Fault Code
Diagnosing and repairing fault code B1572 may involve inspecting and replacing faulty seat belt pretensioners.
The cost to diagnose and fix OBD code B1572 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150. Factors like shop rates and the complexity of the repair can influence the final cost.
Details of the b1572 OBD Code
B1572 indicates a fault with the rear gate unlock switch circuit in the vehicle.
OBD code B1572 means Wiper Park Switch Circuit Short to Battery.
This code is triggered by the Body Control Module (BCM) when it detects a short to battery in the wiper park switch circuit.
The wiper park switch is a component of the windshield wiper system that signals the wipers to stop in the correct position when turned off.
When a short to battery occurs in this circuit, it can cause issues with the wiper park function, leading to improper wiper operation.
Mechanic’s Tech Notes
Code B1572 indicates a fault with the seat belt pretensioner circuit resistance being too high.
OBDII code B1572 indicates a fault with the traction control module (TCM) power circuit.
To diagnose, use a multimeter to check TCM power and ground connections for proper voltage and continuity.
Utilize a scan tool to confirm TCM communication over the Controller Area Network (CAN) bus.
If the wiring harness or connectors appear damaged, inspect them closely for issues like broken, bent, or corroded pins.
Reflashing the TCM software may be necessary to resolve the fault.
FAQ
OBD code B1572 indicates a faulty Door Ajar Left Right Switch or wiring issue. Check wiring and connectors for damage or corrosion.
Common symptoms of OBD code B1572 include Engine Light ON, caused by faulty Door Ajar Left Right Switch or issues with Smart Junction Box. Inspect wiring and connectors for damage.
Diagnose OBD code B1572 by checking for faulty Door Ajar Left Right Switch or harness issues. Inspect wiring and connectors for damage or poor connections.
Wrap Up
If your vehicle displays OBD code b1572, you may experience issues with the seat belt pretensioner system, such as nondeployment during a collision.
This code could indicate a fault in the seat belt pretensioner sensor, wiring problems, or a faulty seat belt pretensioner itself.
To address OBD code b1572, start by inspecting the wiring harness and connectors related to the seat belt pretensioner system.
Check for any damaged wires, loose connections, or corrosion.
If the wiring appears intact, consider testing or replacing the seat belt pretensioner sensor to resolve
