B22A9 – ECU Internal Performance Radio Frequency Module

B22A9 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B22A9 Possible Causes

Faulty Radio Frequency Hub (RF-HUB) Module,Radio Frequency Hub (RF-HUB) Module harness is open or shorted,Radio Frequency Hub (RF-HUB) Module circuit poor electrical connection

B22A9 Description

The Radio Frequency Hub (RF-HUB) performs an internal self test. The repair of this fault condition does not involve any external circuitry and centers on verifying the integrity of the internal circuitry and software validity.