Radio Frequency (RF Hub) Verification Test

Perform the following after completion of a diagnostic repair:

VERIFICATION TEST 

1. If a wiring repair was completed or a component other than the RFH was replaced, perform the following actions.
   • Reconnect the previously disconnected components and connectors.
   • With the scan tool, perform an ECU Reset on the RFH. Under "Guided Diagnostics" select "Reset ECU" and from the list, highlight RFH.
   • Retest for original concern.
2. If RFH module programming is required, follow the instructions below.
   • During Module Programming it is necessary to obtain the vehicle's unique Personal Identification Number (PIN) assigned to the vehicle. This number can be obtained from the original vehicle invoice or from your Service Manager or Parts Manager.
   NOTE:

   If, during programming, the scan tool instructs to "Enter the vehicle PIN number", care should be taken because the Radio Frequency Hub Module (RFHM) will only allow 3 consecutive attempts to enter the correct PIN. If 3 consecutive incorrect PIN's are entered, the RFHM will Lock Out the scan tool. To exit Lock Mode, the ignition must remain in the On position for 25 minutes. All accessories must be off. A battery charger connected to the battery during this time period is recommended. 

   NOTE:

   The Body Control Module (BCM) stores the secret key information on the Keyless Ignition Node (KIN) only. When the RFHM needs to be replaced, the secret key information will be retrieved from the BCM and then transferred to the new RFHM for security use. 

   NOTE:

   If the BCM is also being replaced at this time, refer to the RFHM, BCM, FOBIK Replacement and Programming Guide and follow the proper order before proceeding. Refer to  STANDARD PROCEDURE  . 
3. If new FOBIKs need to be added, perform the following actions.
   • Program all FOBIKs that are to be used with this vehicle. With the scan tool, select "Misc. Functions", "Program Ignition FOBIKs" and follow the instructions on the screen.
   NOTE:

   All FOBIKs that are to be used in this vehicle must remain on the front seat near the console during programming. 

   NOTE:

   If the RFH is being replaced with a new unit, a diagnostic scan tool MUST be used to align the PROXI configuration data into the new ECU. Follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under Body Control Module (BCM) Miscellaneous Functions menu. 
4. If the RFH module was replaced, with the scan tool select "RFH", "Misc. Functions", "RFH Replace" and follow the instructions on the screen.
   • Turn the ignition on then off leaving the key in the On position.
   • With the scan tool, erase all RFH DTCs.
   • Operate all equipped RFH functions (Passive Entry, Remote Start, Ignition Positions etc.).
   • Wait four minutes.
   • With the scan tool, read the RFH DTCs.

   Are there any RFH DTCs present or any RFH functions not operating properly?

   Yes 

   • Repair not complete, and perform the appropriate diagnostic procedure. Refer to RADIO FREQUENCY MODULE (RF HUB), DIAGNOSTIC CODE INDEX .

   No 

   • Repair is complete.