OBD code B1624 indicates a fault with the Lamp Keypad circuit in the Body Control Module (BCM).
Symptoms include the Engine Light being ON.
The issue is commonly caused by a faulty Lamp Keypad or related wiring issues.
While not a critical problem, it should be addressed promptly.
To fix it, inspect the wiring harness, connectors, and components 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) |
Symptoms of the b1624 OBD Code
The vehicle displays an airbag warning light on the dashboard.
- Symptoms: Service Engine Soon Warning Light ON.
- Vehicle may not start.
- Horn may not work.
- Power windows may not operate.
- Cruise control may be disabled.
Causes of the b1624 OBD Code
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B1624 fault code typically indicates a malfunction in the passenger airbag indicator circuit.
- B1624 can be caused by a faulty Lamp Keypad.
- A Lamp Keypad harness that is open or shorted.
- A Lamp Keypad circuit with poor electrical connection.
- A faulty Body Control Module (BCM).
Fixing Error Code b1624 Step By Step
Address the issue by inspecting the driver’s seat belt buckle switch circuit for fault code B1624.
- To fix OBDII code B1624, start by reviewing 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 with the wiring and connectors, proceed to test the component or system associated with the code, such as a sensor or module.
- Replace the faulty component if necessary.
- Clear the fault code from the vehicle’s computer using a scan tool.
- Test drive the vehicle to ensure the code does not return, indicating a successful repair.
Cost Of Fixing b1624 Fault Code
Diagnosing and repairing fault code B1624 may involve inspecting and replacing the seat belt buckle switch.
The cost to diagnose and fix OBD code B1624 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the general cost could be between $75 and $150. The final cost may vary based on shop rates and the complexity of the repair.
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Details of the b1624 OBD Code
B1624 code indicates a malfunction in the passenger airbag indicator circuit.
OBD code B1624 means Low Battery Voltage.
This code is triggered by the Body Control Module (BCM) when it detects that the voltage in the vehicle’s electrical system is below a specified threshold.
The BCM monitors the battery voltage to ensure proper operation of various electrical components and systems in the vehicle.
When the voltage drops below the threshold, the BCM sets code B1624 to indicate a potential issue with the battery or charging system.
Mechanic’s Tech Notes
Code B1624 indicates a malfunction in the passenger airbag system’s sensor circuit.
OBDII code B1624 indicates a communication error between the body control module (BCM) and the vehicle communication interface module (VCIM).
To diagnose, use a scan tool to check for BCM and VCIM communication.
Inspect wiring harnesses and connectors for damage, corrosion, or poor connections.
Test TCM power and ground with a multimeter.
Verify TCM response over the CAN network.
Reflashing the modules may be necessary.
Be thorough in your visual inspection and testing procedures to pinpoint the exact cause of the communication fault.
FAQ
OBD code B1624 indicates an issue with the Lamp Keypad circuit. Check for faulty keypad, wiring, or BCM. Inspect and repair wiring connections as needed.
Common symptoms of OBD code B1624 include Engine Light ON, caused by faulty Lamp Keypad, harness issues, or faulty Body Control Module. Inspect and repair affected components and connections.
Diagnose OBD code B1624 by checking Lamp Keypad, harness, and BCM. Inspect wiring for damage or poor connections. Repair as needed.
Wrap Up
If your airbag warning light is on and you see OBDII code b1624, it may indicate a fault in the side airbag sensor assembly circuit on the driver’s side.
This could be caused by a damaged wiring harness, a faulty side airbag sensor, or poor connections in the circuit.
To address OBDII code b1624, check the wiring harness for any visible damage, ensure connectors are securely attached, and test the side airbag sensor for proper operation.
Replace any faulty components and clear the code to resolve the issue.
