Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSJEEP2009LIBERTY LIMITED, 4WD, PART TIMEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSDRIVER DOOR MODULE (DDM) (DMFL/R) - ELECTRICAL DIAGNOSTICS - LIBERTYDTC TROUBLESHOOTINGB2578-DRIVER WINDOW NOT CALIBRATED/LOST CALIBRATIONDIAGNOSTIC TEST

2009 Jeep Liberty Limited, 4WD, Part Time

Diagnostic Test

2009 Jeep Liberty Limited, 4WD, Part TimeSECTION Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase the DTCs.
3. Operate the Driver Window up and down several times.
4. Wait 30 seconds.
5. With the scan tool, read the active DTCs.
  Does the scan tool display B2578-DRIVER WINDOW NOT CALIBRATED/LOST CALIBRATION ?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
WINDOW MODULE NOT CALIBRATED
1. Run the window to the full up position and continue to hold the switch for an additional 2 seconds.
2. Run the window to the full down position and continue to hold the switch for an additional 2 seconds.
3. Again run the window to the full up position and continue to hold the switch for an additional 2 seconds.
4. Lower the window all the way down then press and release the switch to the express up position.
  Did the window move to the full up position?
  
  No
  - Go to step 3
  Yes
  - Test complete.
EXPRESS WINDOW SWITCH
1. Turn the ignition off.
2. Move the Driver Express Switch from the idle position to the up position and then to the express up position.
  Is there two definite detent positions felt?
  
  Yes
  - Replace the Driver Door Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Driver Express Window Switch assembly.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.