Airbag Signal Test Failed
Table of contents
B273F RAM Possible Causes
- Faulty Radio (RRM)
- Radio harness is open or shorted
- Radio circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How do I fix code B273F RAM?
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 B273F RAM code
The cost of diagnosing the B273F RAM 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
B273F RAM Description
This diagnostic runs continuously when the following conditions are met: Ignition on and Radio on. This Diagnostic Trouble Code (DTC) is a Loss of communication fault for the serial interface between the Radio (RRM) and the Occupant Restraint Controller (ORC). It looks for heartbeat signal and sets fault if it disappears for more than 65 seconds.