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Test Description

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The number below refers to the step number on the diagnostic table:

  1. 6:  Tests for the proper operation of the circuit in the normal voltage range.
DTC B2960

Step Action Value(s) Yes No
Schematic Reference: Theft Deterrent System Schematics 
1 Did you perform the Vehicle Theft Deterrent (VTD) Diagnostic System Check? - Go to Step 2  Go to Diagnostic System Check - Theft Deterrent 
2
  1. Install a scan tool.
  2. Momentarily rotate the ignition switch to CRANK. Do not start the vehicle.
  3. Release the ignition switch to ON.
  4. Select the body control module (BCM) display DTCs function on the scan tool.
Does the scan tool display DTC B2960 as a current DTC?		 - Go to Step 3  Go to TESTING FOR INTERMITTENT AND POOR CONNECTIONS
3 Does the scan tool display DTC B2947, B2948, B2957, or B2958? - Go to Diagnostic Trouble Code (DTC) List  Go to Step 4 
4 Have you replaced the Passlock(tm) sensor on this vehicle? - Go to Step 5  Go to Step 6 
5 Have you performed a Passlock(tm) learn procedure after replacing the Passlock(tm) sensor? - Go to Step 6  Go to Step 9 
6  With a scan tool, observe the Passlock(tm) data voltage for one minute.
Does the scan tool indicate that the Passlock(tm) data voltage is changing more than the specified value?		 +/- 0.02 V Go to Step 7  Go to Step 9 
7 Inspect for poor connections at the Passlock(tm) sensor. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS and CONNECTOR REPAIRS .
Did you find and correct the condition?		 - Go to Step 10  Go to Step 8 
8 Replace the Passlock(tm) sensor in the electronic column lock module assembly. Refer to ELECTRONIC COLUMN LOCK MODULE - DISASSEMBLE - OFF VEHICLE and ELECTRONIC COLUMN LOCK MODULE - ASSEMBLE - OFF VEHICLE .
Did you complete the replacement?		 - Go to Step 9  -
9 Perform the Programming Theft Deterrent System Components  procedure.
Is the repair complete?		 - Go to Step 10  -
10
  1. Use the scan tool in order to clear the DTCs.
  2. Turn OFF the ignition.
    3. IMPORTANT: Do not start the vehicle.
  3. Momentarily rotate the ignition switch to CRANK.
  4. Release the ignition switch to ON.
  5. Select the body control module display DTCs function on the scan tool.
Does the DTC reset?		 - Go to Step 3  System OK
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