Radio Frequency Module (RF Hub)

B2199-16-BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
At all times.

- Set Condition:
Anytime the module senses voltage input below 8.0 Volts for over two seconds, this code will set.





1. CHECK POWERTRAIN DTCs
1. Using the scan tool, read the active PCM DTCs.

Are there any Battery or Charging System DTCs?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure for the charging system DTCs.

No

- Go To 2

2. TEST FOR INTERMITTENT CONDITION
1. Using the scan tool, record and erase the DTCs.
2. Start the engine and run for two minutes.
3. Using the scan tool, read the Active DTCs.

Does the scan tool display B2199-16-BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD as active?

Yes

- Go To 3

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. (A910) FUSED B(+) OR (Z916) GROUND CIRCUIT RESISTED




1. Disconnect the Radio Frequency Hub (RF Hub) Module C1 harness connector.
2. Test the (A910) Fused B(+) circuit for high resistance by connecting a 12-volt test light between the (A910) Fused B(+) circuit and the (Z916) Ground circuit in the RF Hub C1 harness connector. The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

- Replace the Radio Frequency Hub (RF Hub) module. Radio Frequency Module (RF Hub) - Removal.
- NOTE: If this vehicle is equipped with a Steering Column Lock Module (Export), it MUST be replaced also.

- Replace the Steering Column Lock Module. Shaft Lock Module - Removal
- Perform the RADIO FREQUENCY HUB VERIFICATION TEST. RF Hub Verification Test

No

- Test the (A910) Fused B(+) and the (Z916) Ground circuits to determine which one has the high resistance. Repair the (A910) Fused B(+) circuit or the (Z916) Ground circuit for high resistance.
- Perform the BODY VERIFICATION TEST. Body Verification Test.