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.
Power Window Motor Test: Test
How to use this service information .
NOTICE:Ā
When working with a vehicle equipped with the electronic air suspension, be sure to set it to the leveling off mode to prevent unexpected operation. Refer to the Electronic Air Suspension System Service Precautions - Refer to: Electronic Air Suspension System Connector Fitting Precautions or Electronic Air Suspension System Service Precautions for the procedure.
If the door control unit is replaced, reset the power window control unitĀ . If the original door control unit is installed, confirm that the power window works properly.
Driver'sĀ
- Driver's Power Window Motor - Test
PreconditionsĀ
- Front Door Panel Removed
- Power Window Motor Circuit Normal Condition
Procedure/SpecificationsĀ
1. Test the motor in each direction by connecting 12 volt battery power and ground to the connector according to the table. When the motor stops running, disconnect 12 volt battery power immediately. (Figure 1 and 2)
- If the motor does not run or fails to run smoothly, then go to step 2.
Figure 1Ā
Figure 2Ā
Figure 3Ā
Figure 4Ā
2. Test the motor by connecting 12 volt battery power and ground according to the table. When the motor stops running, disconnect 12 volt battery power immediately. (Figure 3 and 4)
ResultĀ
- If the motor does not run or fails to run smoothly, the driver's power window motor is faulty; replace the driver's door regulator .
- If the motor runs smoothly, replace the wire harnesses or adjust the driver's door glassĀ .
After TestĀ
Front Passenger'sĀ
- Front Passenger's Power Window Motor - Test
PreconditionsĀ
- Front Door Panel Removed
- Power Window Motor Circuit Normal Condition
Procedure/SpecificationsĀ
1. Test the motor in each direction by connecting 12 volt battery power and ground to the connector according to the table. When the motor stops running, disconnect 12 volt battery power immediately. (Figure 1 and 2)
- If the motor does not run or fails to run smoothly, then go to step 2.
Figure 1Ā
Figure 2Ā
Figure 3Ā
Figure 4Ā
2. Test the motor by connecting 12 volt battery power and ground according to the table. When the motor stops running, disconnect 12 volt battery power immediately. (Figure 3 and 4)
ResultĀ
- If the motor does not run or fails to run smoothly, the front passenger's power window motor is faulty; replace the front passenger's door regulator .
- If the motor runs smoothly, replace the wire harnesses or adjust the front passenger's door glassĀ .
After TestĀ
RearĀ
- Rear Power Window Motor - Test
PreconditionsĀ
- Rear Door Power Window Switch Panel Removed
- Power Window Motor Circuit Normal Condition
Procedure/SpecificationsĀ
1. Test the motor in each direction by connecting 12 volt battery power and ground to the connector according to the table. When the motor stops running, disconnect 12 volt battery power immediately. (Figure 1 and 2)
- If the motor does not run or fails to run smoothly, then go to step 2.
Figure 1Ā
Figure 2Ā
Figure 3Ā
Figure 4Ā
2. Test the motor by connecting 12 volt battery power and ground according to the table. When the motor stops running, disconnect 12 volt battery power immediately. (Figure 3 and 4)
ResultĀ
- If the motor does not run or fails to run smoothly, the rear power window motor is faulty; replace the rear door regulator .
- If the motor runs smoothly, replace the wire harnesses or adjust the rear door glassĀ .
After TestĀ
NO RELATED
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.
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.