b1650 occupant classification system malfunction
What it means:
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OBD2 Code: B1650
Description: Occupant Classification System Malfunction
Definition: This code indicates a malfunction in the occupant classification system, which is responsible for detecting the presence and weight of a passenger in the front seat to control airbag deployment.
Common Causes:
OBD2 Code: B1650
Description: Occupant Classification System Malfunction
- Faulty occupant classification system sensor
- Poor electrical connection in the occupant classification system circuit
- Damaged or corroded wiring harness related to the occupant classification system
- Defective control module for the occupant classification system
- Software issues within the vehicle’s electronic control unit (ECU)
- Improperly calibrated or installed seat weight sensors
Common Misdiagnosis:
OBD2 Code: B1650
Description: Occupant Classification System Malfunction
Common Misdiagnosis: Faulty seat weight sensor or incorrect calibration of the occupant classification system.
Common Diagnostic Steps:
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OBD2 Code: B1650
Description: Occupant Classification System Malfunction
- Check for any stored codes in the vehicle’s computer system using an OBD2 scanner.
- Inspect the wiring and connectors related to the occupant classification system for any signs of damage or corrosion.
- Verify that all connectors are properly seated and secure.
- Test the occupant classification sensor for proper operation using a multimeter or specialized diagnostic tool.
- Examine the seat cushion and ensure it is not damaged or improperly installed, as this can affect sensor readings.
- If applicable, recalibrate the occupant classification system according to manufacturer specifications.
- Clear the code from the vehicle’s computer and perform a test drive to see if the code returns.