The OBD code B1650 for Toyota indicates an issue with the Occupant Detection ECU in the airbag system.
Symptoms include the Airbag Warning Light being ON.
This is usually caused by a faulty Occupant Detection ECU, open/shorted harness, poor electrical connection, or a faulty Center Airbag Sensor Assembly.
It is a serious issue that requires immediate attention.
To fix it, inspect and repair any damaged wiring or connectors related to the Occupant Detection ECU.
| 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 Toyota b1650 OBD Code
Indicators of Toyota B1650 may include illuminated airbag warning light and nondeployment of airbags during a collision.
- Symptoms: Airbag Warning Light ON
Causes of the Toyota b1650 OBD Code
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Possible triggers for Toyota B1650 include faulty airbag sensors or a malfunctioning airbag control module.
- B1650 can be caused by a faulty Occupant Detection ECU.
- An open or shorted Occupant Detection ECU harness.
- A poor electrical connection in the Occupant Detection ECU circuit.
- A faulty Center Airbag Sensor Assembly.
Fixing Toyota Error Code b1650 Step By Step
Address the issue by diagnosing the airbag sensor system for fault code Toyota B1650.
- To fix the Toyota OBDII code B1650, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the airbag system.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no visible issues are found, consider resetting the airbag module using a diagnostic scan tool.
- Perform a thorough inspection of the airbag system components for any physical damage or loose connections.
- If the issue persists, it may be necessary to replace the airbag sensor or the airbag control module.
Cost Of Fixing Toyota b1650 Fault Code
The repair for Toyota fault code B1650 typically involves diagnosing and fixing the airbag sensor circuit.
The cost to diagnose and fix Toyota OBD code B1650 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
The final cost depends on shop rates, complexity of the issue, and any additional parts or labor needed for the repair.
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Details of the Toyota b1650 OBD Code
Toyota fault code B1650 relates to the occupant classification system in the vehicle.
OBD code B1650 for Toyota vehicles indicates a problem with the occupant classification system.
This system is responsible for determining whether the front passenger airbag should be activated based on the weight of the occupant in the seat.
The B1650 code is triggered by the airbag sensor assembly, which detects discrepancies or malfunctions in the system that could potentially affect airbag deployment.
Mechanic’s Tech Notes
For Toyota B1650, refer to detailed information on diagnosis, causes, and repair procedures for this fault code.
To diagnose and fix OBDII code Toyota B1650, start by visually inspecting the wiring harness and connectors related to the airbag system.
Look for any damaged components or signs of corrosion on connector pins.
Use a multimeter to check for proper power and ground to the airbag control module (ACM).
Additionally, scan tools can help verify communication over the Controller Area Network (CAN) network.
If no issues are found during these checks, consider reprogramming or replacing the ACM as needed.
FAQ
OBD code B1650 in a Toyota means the Occupant Detection ECU issue. Symptoms include Airbag Warning Light ON. Check ECU, harness, and connections for faults.
Diagnose a B1650 code in a Toyota by checking for a faulty Occupant Detection ECU, open/shorted harness, poor connections, or issues with the Center Airbag Sensor Assembly.
Common symptoms of a B1650 code in a Toyota include the Airbag Warning Light being ON. Causes may include issues with the Occupant Detection ECU or related wiring.
Wrap Up
If your Toyota is showing OBDII code B1650, you may experience issues with the occupant classification system, such as the airbag warning light staying on, indicating a problem with the airbag sensor assembly, wiring harness, or connectors.
To address Toyota OBDII code B1650, check the wiring harness and connectors for any damage, ensure proper connections, and inspect the airbag sensor assembly for faults.
Replace any faulty components and clear the code to reset the system.
