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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 ((Radio Frequency (RF Hub) Module - Electrical Diagnostics)) >> DTC Troubleshooting >> B22A9-00-Ecu Internal Performance >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

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.

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