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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1523 (Body Rear End) >> Diagnostic Information and Procedures >> DTC B2567 >> Test Description

Test Description

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The number(s) below refer to the step number(s) on the diagnostic table.

  1. 2:  Tests for the normal state of the folding top release switch using a scan tool. The scan tool will display the normal state as INACTIVE, and ACTIVE when the switch is activated.
  2. 3:  Tests if the BCM is able to detect a change in folding top release switch state. The scan tool will display the normal state as INACTIVE, and ACTIVE when the switch is activated.
  3. 4:  Tests for a stuck or shorted folding top release switch. If the folding top release switch is stuck or shorted, the state will change from ACTIVE to INACTIVE when the folding top release switch is disconnected.
  4. 5:  Tests for a short to ground in the folding top release switch signal circuit.
  5. 8:  When the BCM is replaced, use a scan tool to perform the BCM RPO Reprogram procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.
DTC B2567

Step Action Yes No
1 Did you perform the BCM Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Body Rear End 
2 
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Folding Top Release Switch parameter in the BCM data list.
Does the scan tool display INACTIVE?		 Go to Step 3  Go to Step 4 
3 
  1. Activate the folding top release switch.
  2. With the scan tool, observe the Folding Top Release Switch parameter.
Does the Folding Top Release Switch parameter change state?		 Go to Diagnostic Aids Go to Step 4 
4 
  1. Turn OFF the ignition.
  2. Disconnect the folding top release switch.
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the Folding Top Release Switch parameter.
Does the scan tool display INACTIVE?		 Go to Step 7  Go to Step 5 
5  Test the signal circuit of the folding top release switch 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 10  Go to Step 6 
6 Inspect for poor connections at the harness connector of the BCM. 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 10  Go to Step 8 
7 Inspect for poor connections at the harness connector of the folding top release 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 10  Go to Step 9 
8 
IMPORTANT: Perform the BCM RPO Reprogram procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.
Replace the BCM. Refer to Body Control Module Replacement in Body Control System.Did you complete the replacement?		 Go to Step 10  -
9 Replace the folding top release switch. Refer to Folding Top Stowage Compartment Lid Switch Replace in Roof.
Did you complete the replacement?		 Go to Step 10  -
10
  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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