Seat Belt Driver Pretensioner Circuit Short To Battery
Table of contents
B1878 MAZDA Possible Causes
- Faulty Seat Belt Driver Pretensioner
- Seat Belt Driver Pretensioner harness is open or shorted
- Seat Belt Driver Pretensioner circuit poor electrical connection
- Faulty Restraints Control Module (RCM)
How do I fix code B1878 MAZDA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B1878 MAZDA code
The cost of diagnosing the B1878 MAZDA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Air Bag Warning Light ON
B1878 MAZDA Description
The Restraints Control Module (RCM) checks all of the safety Seat Belt Pretensioners for faults. If the RCM detects a short to voltage on a Driver Safety Seat Belt Pretensioner circuit, it will store diagnostic trouble code (DTC) B1878 in memory and illuminate the air bag warning indicator.