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Home >> Jeep >> 2022 >> Gladiator Mojave, Part Time T/Case Control, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 37 (8HP75 Automatic Transmission - DTCS P0219-00 To P0776-00) >> DTC Troubleshooting >> P0634-Pcm/ECM/TCM Internal Temperature Too High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN 
    1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
    3. With the scan tool, erase all DTCs.
    4. Turn the ignition off for a minimum of 10.0 seconds.
    5. Turn the ignition on.
    6. Using the recorded Environmental Data and the When Monitored Conditions above, operate the vehicle in the conditions that set the DTC.
    7. With the scan tool, read DTCs.

    Did the DTC return?

    Yes 

    • Go To  2

    No 

  2. CHECK FOR CONDITIONS THAT COULD CAUSE OVERHEATING 
    1. Check for the following conditions:
      • Incorrect Transmission Fluid level. Refer to CHECK FLUID LEVEL .
      • Case vent plugged or damaged.
      • Transmission Cooler air flow restriction.
      • Fluid restriction in the Transmission Cooler.
      • Bad Torque Converter.

      Were any problems found?

      Yes 

      No