ECU Configuration Mismatch
Table of contents
B2204 RAM Possible Causes
- Faulty Radio Frequency Hub (RF-Hub)
- Radio Frequency Hub (RF-Hub) harness is open or shorted
- Radio Frequency Hub (RF-Hub) circuit poor electrical connection
How do I fix code B2204 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 B2204 RAM code
The cost of diagnosing the B2204 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
- Engine Light ON (or Service Engine Soon Warning Light)
B2204 RAM Description
The Radio Frequency Hub (RF-Hub) must be configured for various parameters such as model year and vehicle line, after a service replacement. The RF-Hub checks for the proper configuration by comparing the values stored to those sent out on the serial data bus. The repair of this fault does not involve any external circuitry and centers on verifying the module is configured correctly. The RF-Hub checks the feature configuration at power up during the initialization process, and continuously through the ignition cycle.
This Diagnostic Trouble Code (DTC) sets when the RF-Hub detects a mismatch of Model Year, vehicle line, body style or market country between the current vehicle configuration of the module and the information sent out on the CAN bus. Once set, this DTC is latched for the entire ignition cycle.