B0090 Body DTC Code

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OBD-II Trouble Code Technical Description

Left Frontal Restraints Sensor (Subfault)

What does that mean?

A B0090 trouble code refers to the restraint (seatbelt) sensor on the left front seat.

Symptoms

Aside from the DTC code being triggered, about the only other thing you may notice is if you have a seatbelt warning lamp and/or chime, it may be illuminated or flashing, even when the seatbelt is fastened.

Causes

A B0090 DTC code may be caused by a wiring or connector fault, or restraint sensor failure.

Potential Solutions

To fix the problem, first check the wiring and connections leading to the left front restraint (seatbelt) sensor. If the wiring has no obvious problems, check the wiring using the specifications from a proper service manual. Verify operation of the sensor and replace if necessary.

Need more help?

If you still need help regarding the B0090 trouble code, please post your concern in the forums.

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