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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1401 (Instrument Panel System Displays, Gauges And Console) >> Diagnostic Information and Procedures >> DTC B2961: Key In Ignition Circuit Malfunction >> Conditions for Clearing the DTC

Conditions for Clearing the DTC

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DTC B2961 Diagnostic Table

Step Action Yes No
Schematic Reference:  Audible Warnings Schematics  
Connector End View Reference:  Instrument Panel, Gages, and Console Connector End Views   or  Body Control System Connector End Views 
1 Did you perform the Audible Warnings Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Audible Warnings 
2
  1. Install a scan tool.
  2. Turn the ignition ON, with the engine OFF.
  3. With the scan tool, observe the Key In Ignition parameter in the body control module (BCM) inputs data list.
Does the Key In Ignition parameter display Yes?
Go to Step 3  Go to Step 4 
3
  1. Turn the ignition ON with the engine OFF.
  2. Observe the Ignition 1 parameter in the BCM Inputs data list.
  3. Turn the ignition OFF.
Does the Ignition 1 parameter display On with the ignition off?
Go to Step 8  Go to Step 7 
4 Test the key in ignition signal circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 11  Go to Step 5 
5 Test the ground circuit of the ignition key alarm switch for an open or a high resistance. Refer to Circuit Testing andWiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 11  Go to Step 6 
6 Inspect for poor connections at the harness connector of the ignition 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 11  Go to Step 9 
7 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 11  Go to Step 10 
8 Repair the short to voltage in the ignition 1 voltage circuit. Refer to Wiring Repairs in Wiring Systems.
Did you correct the condition?
Go to Step 11  -
9 Replace the ignition switch. Refer to Ignition Switch Replacement in Steering Wheel and Column.
Did you complete the replacement?
Go to Step 11  -
10
IMPORTANT: Perform the set up procedure for the replacement BCM.
Replace the BCM. Refer to Body Control Module Replacement in Body Control System.Did you complete the replacement?
Go to Step 11  -
11
  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