Air Bag Tone Warning Indicator Circuit Short to Battery
Table of contents
B1891 MAZDA Possible Causes
- Faulty Instrument Cluster Module
- Instrument Cluster Module harness is open or shorted
- Instrument Cluster Module circuit poor electrical connection
- Faulty Restraints Control Module (RCM)
How do I fix code B1891 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 B1891 MAZDA code
The cost of diagnosing the B1891 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
B1891 MAZDA Description
The connection between the Instrument Cluster Module and Restraints Control Module (RCM) is used to signal a chime if the primary air bag indicator is inoperative and another Supplemental Restraint System (SRS) fault exists. The RCM monitors this connection to the Instrument Cluster Module. If the RCM detects a circuit failure on the connection to the cluster, it will store diagnostic trouble code (DTC) B1891 in memory and flash lamp on the air bag indicator.