Diagnostic Test

CHECK FOR AN ACTIVE CHARGING DTC
1. Verify that the battery is not overcharged with a DVOM.
2. With the scan tool, compare the Battery Voltage listed under "Data" in the RFH View to that of the PCM. If the battery is overcharged, correct this condition before proceeding.
3. With the scan tool, read PCM DTCs and record on the repair order.
  Are there any active Battery or Charging system DTCs present?
  
  Yes
  - Repair PCM DTC(s) in accordance with Service Information. Refer to DIAGNOSTIC CODE INDEX .
  No
  - Go To 2
CHECK THE RFHM
1. With the scan tool, read Radio Frequency Hub Module (RFHM) DTCs and record on the repair order.
2. Start the engine and run for two minutes.
3. With the scan tool, read RFHM DTCs.
  Is the DTC active?
  
  Yes
  - Replace the Radio Frequency Hub (RFHM) in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL AND INSTALLATION .
  - Perform the RADIO FREQUENCY HUB VERIFICATION TEST. Refer to RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST .
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .