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Home >> Cadillac >> 2004 >> Escalade EXT >> Repair and Diagnosis >> Body & Frame >> Windows >> Door System, Mirror System & Window System >> Diagnostic Information and Procedures >> DTC B3823: Right Rear Window Down Control Circuit >> Test Description
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Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. 2:  Listen for an audible click when the right rear power window relay operates. Command both the ON and OFF states. Repeat the commands as necessary.
  2. 3:  Tests for voltage at the coil side of the right rear power window down relay.
  3. 4:  Verifies that the BCM is providing ground to the right rear power window down relay.
  4. 5:  Tests if ground is constantly being applied to the right rear power window down relay.
DTC B3823

Step Action Yes No
Schematic Reference:  Power Window Schematics  
Connector End View Reference:  Power Door Systems Connector End Views  
1 Did you perform the Door Systems Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Door Systems 
2 
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, command the right rear power window down relay ON and OFF.
Does the right rear power window down relay turn ON and OFF with each command?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 
  1. Turn OFF the ignition.
  2. Disconnect the right rear power window switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Probe the battery positive voltage circuit of the right rear power window switch with a test lamp that is connected to a good ground.
Does the test lamp illuminate?		 Go to Step 4  Go to Step 10 
4 
  1. Connect a test lamp between the control circuit of the right rear power window down relay and the battery positive voltage circuit of the right rear power window switch.
  2. With a scan tool, command the right rear power window down relay ON and OFF.
Does the test lamp turn ON and OFF with each command?		 Go to Step 8  Go to Step 5 
5  Does the test lamp remain illuminated with each command? Go to Step 7  Go to Step 6 
6 Test the control circuit of the right rear power window down relay for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 13  Go to Step 9 
7 Test the control circuit of the right rear power window down relay for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 13  Go to Step 9 
8 Inspect for poor connections at the right rear power 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 13  Go to Step 11 
9 Inspect for poor connections at the harness connector of the Body Control Module. 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 13  Go to Step 12 
10 Repair the battery positive voltage circuit of the right rear power window switch. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?		 Go to Step 13  -
11 Replace the right rear power window switch.
Did you complete the replacement?		 Go to Step 13  -
12
IMPORTANT: Perform the set up procedure for the Body Control Module.
Replace the Body Control Module. Refer to Body Control Module Replacement in Body Control System.Did you complete the replacement?		 Go to Step 13  -
13
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 Go to Step 2  System OK
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