B1124
Diagnosis Sensor Unit
B1124 is an OBD-II diagnostic trouble code meaning: Diagnosis Sensor Unit. Common causes: malfunction of the srs diagnostic unit, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- The SRS/airbag indicator on the dashboard is on
- Restraint system inactive
- The error persists after being reset by the scanner
Causes
- Malfunction of the SRS diagnostic unit
- Open or short circuit in wiring harness
- Problems with power supply to the unit (blown fuse)
- Corroded contacts or damaged connectors
How to Fix
- Check SRS fuses
- Inspect the wiring harness and connectors of the diagnostic unit
- Check the power and ground of the diagnostic unit
- Read fault codes with SRS scanner
- If necessary, replace the diagnostic unit
Related codes
FAQ
What does the B1124 code mean?
B1124 is an OBD-II diagnostic trouble code that indicates: Diagnosis Sensor Unit
What causes a B1124 error code?
The most common causes of B1124 include: Malfunction of the SRS diagnostic unit; Open or short circuit in wiring harness; Problems with power supply to the unit (blown fuse); Corroded contacts or damaged connectors.
How do I fix a B1124 diagnostic trouble code?
To fix B1124: Check SRS fuses. Inspect the wiring harness and connectors of the diagnostic unit. Check the power and ground of the diagnostic unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1124?
Limited driving only, diagnose soon
How much does it cost to fix B1124?
The estimated repair cost for B1124 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat