B1788
Rear Occupant Classification Sensor Right Collision Detection
B1788 is an OBD-II diagnostic trouble code meaning: Rear Occupant Classification Sensor Right Collision Detection. Common causes: passenger classification sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Airbag light is on
- Error B1788 in diagnostic memory
- Incorrect operation of airbags
- Error message on display
Causes
- Passenger classification sensor malfunction
- Open or short circuit in wiring harness
- Damage to the sensor connector
- Problems with the airbag control module
- Contact corrosion
- Software error in the system
How to Fix
- Diagnostics of the airbag system using a scanner
- Visual inspection of the wiring harness and connectors
- Checking OCS Sensor Resistance
- Replace the sensor if necessary
- Repair or replacement of damaged wires
- Cleaning contacts from corrosion
- Module flashing (if required)
- Resetting the error and checking the system operation
Related codes
FAQ
What does the B1788 code mean?
B1788 is an OBD-II diagnostic trouble code that indicates: Rear Occupant Classification Sensor Right Collision Detection
What causes a B1788 error code?
The most common causes of B1788 include: Passenger classification sensor malfunction; Open or short circuit in wiring harness; Damage to the sensor connector; Problems with the airbag control module.
How do I fix a B1788 diagnostic trouble code?
To fix B1788: Diagnostics of the airbag system using a scanner. Visual inspection of the wiring harness and connectors. Checking OCS Sensor Resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1788?
Do not drive — repair immediately
How much does it cost to fix B1788?
The estimated repair cost for B1788 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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