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Home >> Jeep >> 2011 >> Compass Base, 2.0 A, Automatic CVT >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P198A-AWD System Performance >> Diagnostic Test
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Diagnostic Test

  1. CHECK IF THE DTC IS ACTIVE 
    1. With the scan tool, read Transmission DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go to 2.

      No 

      • Go to 6.
  2. CHECK FOR AWD MODULE DTCS 
    1. With the scan tool, read DTCs.

      Does the AWD module have any DTCs present?

      Yes 

      No 

      • Go to 3.
  3. CHECK FOR TIPM DTCS 
    1. With the scan tool, read DTCs.

      Does the TIPM have any DTCs present?

      Yes 

      • Perform the appropriate symptom.
      • Perform CVT VERIFICATION TEST. Refer to Standard Procedure .

      No 

      • Go to 4.
  4. REPLACE THE AWD MODULE 
    1. Using the schematics as a guide, check the All Wheel Drive Module (AWD) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for any Service Bulletins for possible causes that may apply. If no problems are found, replace the AWD module per the Service Information.
    2. Perform CVT VERIFICATION TEST. Refer to Standard Procedure .

      Did the DTC P198A reset?

      Yes 

      • Go to 5.

      No 

      • Test complete.
  5. REPLACE THE TIPM 
    1. Using the schematics as a guide, check the Totally Integrated Control Module (TIPM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for any Service Bulletins for possible causes that may apply. If no problems are found, replace the TIPM per the Service Information.
    2. Perform CVT VERIFICATION TEST. Refer to Standard Procedure .

      Did the DTC P198A reset?

      Yes 

      • Using the schematics as a guide, check the Transmission Control Module (TCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for any Service Bulletins for possible causes that may apply. If no problems are found, replace the TCM per the Service Information.
      • Perform CVT VERIFICATION TEST. Refer to Standard Procedure .

      No 

      • Test complete.
  6. CHECK THE WIRING AND CONNECTORS 
    1. The conditions necessary to set this DTC are not present at this time.
    2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
    3. Wiggle the wires while checking for shorted and open circuits.
    4. Check for any Service Bulletins that may apply.

      Were there any problems found?

      Yes 

      No 

      • Test Complete.