Diagnostic Test

CHECK FOR OTHER TRANSMISSION DTCS
1. With the scan tool, check for other transmission DTCs.
  Are any gear ratio and/or speed sensor DTCs present in addition to DTC P0219?
  
  Yes
  - Refer to DIAGNOSTIC CODE INDEX .
  No
  - Go To 2
CHECK FOR ENGINE DTCS
1. With the scan tool, check for engine DTCs.
  Are any engine DTCs present?
  
  Yes
  - Refer to the DTC INDEX article .
  No
  - Go To 3
CHECK IF ENGINE MECHANICAL PROBLEMS ARE PRESENT
1. Determine if any Engine mechanical problems are present.
  Are any Engine mechanical problems present?
  
  Yes
  - Repair engine as necessary. Refer to the applicable ENGINE-SERVICE INFORMATION for the appropriate repair procedures.
  - Perform TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
CHECK IF TRANSMISSION MECHANICAL PROBLEMS ARE PRESENT
1. Check transmission fluid level and check for leaks if necessary.
2. Determine if any Transmission mechanical problems are present.
3. Turn the ignition OFF.
4. Remove the Transmission Oil Pan and inspect for excessive debris or a plugged Transmission Oil Filter.
  Is there any fluid leaks, debris, plugged Transmission Oil Filter, or signs of an internal transmission problem?
  
  Yes
  - Repair Transmission as necessary.
  - Perform TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 5
TEST DRIVE THE VEHICLE
NOTE:
The Engine and Transmission must not have mechanical problems and be operating normally before proceeding with this test.
1. With the scan tool, erase Transmission DTCs.
2. Road test the vehicle.
3. With the scan tool, read Transmission DTCs.
  Did DTC P0219-ENGINE OVERSPEED reset?
  
  Yes
  
  NOTE:
  If this Electronic Control Unit (ECU) 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.
  - Using the schematics as a guide, check the Transmission Control Module (TCM) terminals and connectors for corrosion, damage or pushed out terminals. Pay particular attention to the power and ground circuits. If no problems are found, replace the TCM and perform programming and PROXI Configuration Alignment procedures. Refer to MODULE, TRANSMISSION CONTROL, REMOVAL .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test Complete.
  - Perform TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .