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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1422 (Body Rear End) >> Diagnostic Information and Procedures >> Rear Quarter Window(s) Inoperative

Rear Quarter Window(s) Inoperative

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Rear Quarter Window(s) Inoperative

Step Action Yes No
Schematic Reference: Body Rear End Schematics 
Connector End View Reference: Body Rear End Connector End Views 
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 Retained Accessory Power (RAP) Inoperative (Except XUV)Retained Accessory Power (RAP) Inoperative (XUV) in Retained Accessory Power Go to Step 4 
4
  1. Disconnect the appropriate quarter glass switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Probe the retained accessory power (RAP) fuse supply voltage circuit of the quarter glass switch harness connector with a test lamp that is connected to a good ground.
Does the test lamp illuminate?
Go to Step 5  Go to Step 10 
5 Connect a test lamp between the RAP fuse supply voltage circuit of the quarter glass switch harness connector and the ground circuit of the quarter glass switch harness connector.
Does the test lamp illuminate?
Go to Step 6  Go to Step 11 
6
  1. Disconnect the appropriate quarter glass actuator.
  2. Connect a test lamp between the appropriate power window motor rear vent open control circuit of the quarter glass actuator harness connector and the power window motor rear vent close control circuit of the quarter glass actuator harness connector.
  3. Activate the appropriate quarter glass switch to the Open and Close positions.
Does the test lamp illuminate?
Go to Step 8  Go to Step 7 
7 Test the appropriate power window motor rear vent control circuit for a short to ground or an open. Refer to Circuit Testing andWiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14  Go to Step 9 
8 Inspect for poor connections at the harness connector of the inoperative 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?
Go to Step 14  Go to Step 12 
9 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?
Go to Step 14  Go to Step 13 
10 Repair the short to ground or open in the RAP fuse supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14  -
11 Repair the open in the quarter glass switch ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14  -
12 Replace the appropriate quarter glass actuator. Refer to Actuator Replacement - Rear Quarter Window  .
Did you complete the replacement?
Go to Step 14  -
13 Replace the appropriate quarter glass switch. Refer to Power Quarter Window Switch 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