B1787
Rear Occupant Classification Sensor Left Collision Detection
B1787 is an OBD-II diagnostic trouble code meaning: Rear Occupant Classification Sensor Left Collision Detection. Common causes: passenger classification sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $22–111.
Symptoms
- Security System (SRS) indicator light is on
- Disabling the airbag system
- Error during self-diagnosis of the SRS system
Causes
- Passenger classification sensor malfunction
- Open or short circuit in wiring harness
- Damage to contacts or connectors
- SRS control module malfunction
- Problems with the collision detection system
How to Fix
- Diagnose the SRS system using a scanner
- Check the integrity of the wiring harness and contacts
- About zd3_known_dangerouscheck passenger classification sensor
- Replace damaged components if necessary
- Reset errors and check again
Related codes
FAQ
What does the B1787 code mean?
B1787 is an OBD-II diagnostic trouble code that indicates: Rear Occupant Classification Sensor Left Collision Detection
What causes a B1787 error code?
The most common causes of B1787 include: Passenger classification sensor malfunction; Open or short circuit in wiring harness; Damage to contacts or connectors; SRS control module malfunction.
How do I fix a B1787 diagnostic trouble code?
To fix B1787: Diagnose the SRS system using a scanner. Check the integrity of the wiring harness and contacts. About zd3_known_dangerouscheck passenger classification sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1787?
Do not drive — repair immediately
How much does it cost to fix B1787?
The estimated repair cost for B1787 is $22–111. Actual cost depends on your vehicle, location, and labor rates.
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