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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1433 (Sunroof System) >> Diagnostic Information and Procedures >> DTC B3611, B3612, B3613, B3614, B3615 and B3616 >> Test Description

Test Description

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

  1. 2:  Tests for the normal state of the appropriate switch using a scan tool. The scan tool will display the normal state as Inactive or Idle.
  2. 3:  Tests for a shorted switch. If a switch is shorted, the state will change to Inactive or Idle when the switch is disconnected.
  3. 4:  Tests for a short to ground in the switch signal circuit.
DTC B3611, B3612, B3613, B3614, B3615 and B3616 Diagnostic Test

Step Action Yes No
Schematic Reference: Power Sunroof Schematics 
Connector End View Reference: Power Roof Systems Connector End Views 
1 Did you perform the Power Roof Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Power Roof 
2 
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the appropriate switch parameter in the power roof module data list.
Does the scan tool display Inactive or Idle?		 Go to Step 5  Go to Step 3 
3 
  1. Turn OFF the ignition.
  2. Disconnect the appropriate switch.
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the appropriate switch parameter in the power roof module data list.
Does the scan tool display Inactive or Idle?		 Go to Step 6  Go to Step 4 
4  Test the appropriate switch signal circuit 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 9  Go to Step 5 
5 Inspect for poor connections at the harness connector of the power roof 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 9  Go to Step 7 
6 Inspect for poor connections at the harness connector of the appropriate 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 9  Go to Step 8 
7
  1. Perform the power roof relearn procedure. Refer to Power Roof Relearn .
  2. Replace the power roof module. Refer to Moveable Roof Panel Control Module Replacement .
Did you complete the replacement?		 Go to Step 9  -
8 Replace the appropriate switch. Refer to Switch Assembly Replacement - Endgate Window, Midgate Window and Rear Moveable Roof - Overhead Console .
Did you complete the replacement?		 Go to Step 9  -
9
  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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