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Where is the motor located for my rear quarter panel windows on my 05 Pontiac Montana SV6? And how do I test it?

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  • Pontiac Master
  • 15,575 Answers

Rear Quarter Window Actuator - Right (A20)
Behind the right rear interior body panel
Rear Quarter Window Actuator - Left (A20)
Behind the left rear interior body panel
Rear Quarter Window Inoperative

1

Did you review the rear quarter window description and operation?
Go to Step 2
Go to Symptoms - Body Rear End

2

Verify that the rear quarter windows are inoperative.
Do the rear quarter windows operate normally?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3

3

Are both rear quarter windows inoperative?
Go to Step 4 yes
Go to Step 6 no

4

  1. Turn OFF the ignition.
  2. Disconnect the rear quarter window switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Probe the accessory voltage circuit of the rear quarter window switch harness connector with a test lamp that is connected to a good ground.
Does the test lamp illuminate?
yes Go to Step 5
no Go to Step 7

5

Connect a test lamp between the accessory voltage circuit of the rear quarter window switch harness connector and the ground circuit of the rear quarter window switch harness connector.
Does the test lamp illuminate?
Go to Step 8
Go to Step 10

6

  1. Turn OFF the ignition.
  2. Disconnect the appropriate rear quarter window actuator.
  3. Turn ON the ignition, with the engine OFF.
  4. Connect a test lamp between the power window motor rear vents open control circuit of the rear quarter window actuator harness connector and the power window motor rear vents close control circuit of the rear quarter window actuator harness connector.
  5. Activate the rear quarter window switch to the Open and Close positions.
Does the test lamp illuminate?
yes Go to Step 9
no Go to Step 11

6

  1. Turn OFF the ignition.
  2. Disconnect the appropriate rear quarter window actuator.
  3. Turn ON the ignition, with the engine OFF.
  4. Connect a test lamp between the power window motor rear vents open control circuit of the rear quarter window actuator harness connector and the power window motor rear vents close control circuit of the rear quarter window actuator harness connector.
  5. Activate the rear quarter window switch to the Open and Close positions.
Does the test lamp illuminate?
yes Go to Step 9
no Go to Step 11

7

Test the accessory voltage circuit for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14
Go to Retained Accessory Power (RAP) Inoperative in Computer/Integrating Systems

8

Inspect for poor connections at the harness connector of the rear quarter window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
yes Go to Step 14
no Go to Step 12

9

Inspect for poor connections at the harness connector of the appropriate rear quarter window actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
yes Go to Step 14
no Go to Step 13

10

Repair the open in the ground circuit of the rear quarter window switch. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14
--

11

Repair the open in the appropriate power window motor rear vents control circuit. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14
--

12

Replace the rear quarter window switch. Refer to Quarter Window Switch Replacement .
Did you complete the replacement?
Go to Step 14
--

13

Replace the appropriate rear quarter window actuator. Refer to Body Side Window Actuator Replacement .
Did you complete the replacement?
Go to Step 14
--

14

Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2

Posted on Sep 28, 2015

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3 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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rwwood81766

Robert Wood

  • 5729 Answers

SOURCE: I have an 05 Montana sv6 and my rear quarter panel windows stop working I tried checking the fuses and all are working but don't know how to check the relays though.

Switch a known good relay from a working circuit into the non working circuit.

Posted on Sep 27, 2015

rfaber98

Richard Faber

  • 1326 Answers

SOURCE: My front power windows work but have no power to the rear. Checked my fuses and relays and all are fine why won't my windows in the rear work? On a 05 Pontiac Montana SV6.

Break-in qire, bad switch

Posted on Sep 28, 2015

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