B2577

B2577-PASSENGER WINDOW NOT CALIBRATED/LOST CALIBRATION



Theory of Operation

This code will always set anytime the battery or the door module connector is disconnected.

- When Monitored:
Whenever the window motor is operating.

- Set Condition:
When the Door Module has lost the parameters for window travel, this code will set.





NOTE: If there are any other Power Window DTCs, repair them before continuing.

1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Operate the Passenger Window up and down several times.
4. Wait 30 seconds.
5. With the scan tool, read DTCs.

Does the scan tool display B2577-PASSENGER WINDOW NOT CALIBRATED/LOST CALIBRATION?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and poor pin fit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. 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 3

Yes

- Test complete.

3. EXPRESS SWITCH

Is the express feature inoperative from both front door switches?

Yes

- Replace the Passenger Door Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the defective Express Window Switch assembly.
- Perform the BODY VERIFICATION TEST. Body Verification Test.