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HOMESERVICE MANUALSJEEP2010LIBERTY SPORT, 4WD, PART TIMEREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSPOWERTRAIN CONTROL MODULE (PCM) - ELECTRICAL DIAGNOSTICS - 42RLE AUTOMATIC TRANSMISSIONSTANDARD PROCEDURE42RLE TRANSMISSION VERIFICATION TESTNOTES
2010 Jeep Liberty Sport, 4WD, Part Time

42RLE Transmission Verification Test: Notes

2010 Jeep Liberty Sport, 4WD, Part TimeSECTION Notes

Perform the following after completion of a diagnostic repair: 

NOTE: After completion of the Transmission Verification Test, the Powertrain Verification Test must be performed. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing .
  1. Reconnect any disconnected components.
  2. With the scan tool, erase all Transmission and Engine DTCs.
  3. With the scan tool check pinion factor (if equipped) for proper tire identification and program or reprogram if necessary.
  4. Erase DTC P0700 under engine to turn the MIL off after completion of transmission repairs.
  5. Perform a PRNDL FAULT CLEARING PROCEDURE after completion of repairs for P0706-TRANSMISSION RANGE SENSOR RATIONALITY. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure 
  6. If the Powertrain Control Module or the Transmission has been repaired or replaced, it is necessary to perform the scan tool Quick Learn Procedure.
  7. If the Torque converter has been replaced, with the scan tool perform TCC BREAK-IN.
  8. If the Powertrain Control Module or the Totally Integrated Power Module (Front Control Module if equipped) has been replaced you must reset the Pinion Factor in the Totally Integrated Power Module (Front Control Module if equipped).
  9. With the scan tool, display Transmission Temperature. Start and run the engine until the Transmission Temperature is HOT, above 43° C or 110° F.
  10. Check the transmission fluid and adjust if necessary. Refer to the Service Information for the Fluid Fill procedure.
  11. Road test the vehicle. With the scan tool, monitor the engine RPM. Make 15 to 20 1-2, 2-3, 3-4 upshifts. Perform these shifts from a standing start to 72 km/h (45 mph) with a constant throttle opening of 20 to 25 degrees.
  12. With speeds below 40 km/h (25 mph), make 5 to 8 wide open throttle kickdowns to 1st gear. Allow at least five seconds each in 2nd and 3rd gear between each kickdown.
  13. For a specific DTC, drive the vehicle to the Symptom's When Monitored/When Set conditions to verify the DTC is repaired.
  14. If equipped with AutoStick®, upshift and downshift several times using the AutoStick® feature during the road test.
    NOTE: Use the OBDII task manager to run a Good Trip in each gear, this will confirm the repair and to make sure that the DTC has not re-matured.
  15. Check for any Diagnostic Trouble Codes (DTCs) during and after the road test.

Did any Diagnostic Trouble Codes set during the road test?

Yes 

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.