B3855
Rollover Sensor Performance
B3855 is an OBD-II diagnostic trouble code meaning: Rollover Sensor Performance. Common causes: rollover sensor malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.
Symptoms
- The security system malfunction indicator is on
- The passive restraint system may not engage in a rollover.
- The error is stored in the memory of the on-board computer
Causes
- Rollover sensor malfunction
- Open or shorted wiring harness
- Contact corrosion
- Problems with the security control module
How to Fix
- Conduct diagnostics of the passive safety system
- Check the condition of the rollover sensor and its fastening
- Check the integrity of the wiring harness and contacts
- If necessary, replace the sensor or wiring harness
- Clear error memory and check system operation
Related codes
Error B3855 by Vehicle Brand
FAQ
What does the B3855 code mean?
B3855 is an OBD-II diagnostic trouble code that indicates: Rollover Sensor Performance
What causes a B3855 error code?
The most common causes of B3855 include: Rollover sensor malfunction; Open or shorted wiring harness; Contact corrosion; Problems with the security control module.
How do I fix a B3855 diagnostic trouble code?
To fix B3855: Conduct diagnostics of the passive safety system. Check the condition of the rollover sensor and its fastening. Check the integrity of the wiring harness and contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3855?
Do not drive — repair immediately
How much does it cost to fix B3855?
The estimated repair cost for B3855 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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