Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read RF Hub DTCs and record on the repair order.
3. Attempt to start the engine and run for one minute (if possible).
4. With the scan tool, read RF Hub DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - 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 and repair as necessary. If no problems are found, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE VEHICLE IDENTIFICATION NUMBER (VIN) STORED IN THE POWERTRAIN CONTROL MODULE (PCM)
1. With the scan tool, access the VIN number stored in the PCM.
  NOTE:
  Make sure that a VIN has been programmed into the PCM. If a VIN is not displayed, attempt to program the PCM with the correct VIN before continuing.
2. Compare the VIN displayed, with the VIN of the vehicle.
  Does the VIN recorded in the PCM match the VIN of the vehicle?
  
  Yes
  - Go To 4
  No
  - Go To 3
CHECK PCM STARTING DTCS
1. With the scan tool, perform the PCM Replaced Procedure to update the VIN in the PCM
2. With the scan tool erase all DTCs in the RF Hub and PCM.
3. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
4. Try to start the engine. If the engine starts, allow it to run for one minute and then turn the engine off (ignition on).
5. Wait one minute, and read the active PCM DTCs.
  Does the scan tool display any Starting related DTCs?
  
  Yes
  - Repair the PCM DTC(s). Refer to DTC INDEX .
  No
  - Go To 4
CHECK THE VEHICLE IDENTIFICATION NUMBER (VIN) STORED IN THE RADIO FREQUENCY HUB (RF HUB)
1. With the scan tool, access the VIN number stored in the RF Hub.
2. Compare the VIN displayed, with the VIN of the vehicle.
  Does the VIN recorded in the RF Hub match the VIN of the vehicle?
  
  Yes
  - Go To 5
  No
  - Replace and program the Radio Frequency Hub (RF Hub) in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
  - Perform the RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST. Refer to RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST .
CHECK PCM PROGRAMMING
1. Use the scan tool and erase all DTCs in the RF Hub and PCM.
2. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
3. Wait one minute, and read the active DTCs.
  Is the DTC active?
  
  Yes
  - Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST - 3.6L , POWERTRAIN VERIFICATION TEST - 5.7L , POWERTRAIN VERIFICATION TEST - 6.2L or POWERTRAIN VERIFICATION TEST - 6.4L .
  No
  - Repair is complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .