Operation CHARM: Car repair manuals for everyone.

Left Front Door Module






B25AC - Door Module Front Left - Window Not Calibrated/Lost Calibration

For a complete wiring diagram, refer to.

Theory of Operation

This code will always set anytime the battery or 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.






If there are any other power window DTCs, repair them before continuing.

Test Step 1 - Test for an Intermittent Condition

Turn the ignition ON.

With the scan tool, erase all DTCs.

Try to operate the driver window UP and DOWN several times.

Wait 30 seconds.

With the scan tool, check for DTCs.

Does the scan tool display this DTC?

Yes

Go to Test Step 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 correct pin tension.

Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Window Module Not Calibrated

Run the window to the full up position and continue to hold the switch for an additional two seconds.

Run the window to the full down position and continue to hold the switch for an additional two seconds.

Again run the window to the full up position and continue to hold the switch for an additional two seconds.

Lower the window to the full down position then press and release the switch to the express up position.

Did the window move to the full up position?

Yes

Test complete.

No

Go to Test Step 3

Test Step 3 - Power Window Switch

Turn the ignition OFF.

Move the express power window 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 door module.

Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

Replace the power window switch.

Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior