Diagnostic Test

CHECK FOR OTHER TRANSMISSION DTCS
1. With the scan tool, check for other transmission DTCs.
  Are there any gear ratio and/or speed sensor DTCs present in addition to P0219?
  
  Yes
  - Refer to the DTC INDEX and perform the appropriate symptom. If speed sensor DTCs are present, perform their respective test first.
  No
  - Go To 2
CHECK FOR ENGINE DTCS
1. With the scan tool, check for engine DTCs.
  Are there any engine DTCs present?
  
  Yes
  - Refer to the DTC-Based Diagnostics and perform the appropriate symptom. Refer to DTC INDEX .
  No
  - Go To 3
CHECK IF ENGINE MECHANICAL OR ELECTRICAL PROBLEMS ARE PRESENT
1. Determine if any Engine mechanical or electrical problems are present.
  Are there any Engine mechanical or electrical problems present?
  
  Yes
  - Repair engine as necessary. Refer to the appropriate Engine Diagnostic article for the appropriate repair procedures.
  - Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to NAG1 TRANSMISSION VERIFICATION TEST .
  No
  - Go To 4
CHECK IF TRANSMISSION MECHANICAL PROBLEMS ARE PRESENT
1. Determine if any Transmission mechanical problems are present.
2. Turn the ignition off to the lock position.
3. Remove the Transmission Oil Pan and inspect for excessive debris or a plugged Transmission Oil Filter.
  Is there any debris, plugged Transmission Oil Filter, or signs of an internal transmission problem?
  
  Yes
  - Repair Transmission as necessary.
  - Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to NAG1 TRANSMISSION VERIFICATION TEST .
  No
  - Go To 5
TEST DRIVE VEHICLE
NOTE:
The Engine and Transmission must not have mechanical problems and be operating normally before proceeding with this test.
1. Replace and program the Powertrain Control Module (PCM) per the Service Information.
2. Reassemble any previously disconnected connectors and/or components.
3. With the scan tool, erase Transmission DTCs.
4. Road test the vehicle.
5. With the scan tool, read Transmission DTCs.
  Did DTC P0219-ENGINE OVERSPEED reset?
  
  Yes
  - Using the schematics as a guide, check the Transmission Control Module (TCM) terminals and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the TCM in accordance to the Service Information. Refer to MODULE, TRANSMISSION CONTROL (TCM), REMOVAL .
  - Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to NAG1 TRANSMISSION VERIFICATION TEST .
  No
  - Test Complete
  - Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to NAG1 TRANSMISSION VERIFICATION TEST .