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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 220 (Theft Deterrent System) >> Diagnostic Information and Procedures >> DTC B3031 >> Test Description

Test Description

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

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

  1. 3:  Tests for the proper operation of the 12v sensor power circuit, sensor ground circuit, and Passlock™ data circuit. Troubleshoot the appropriate DTC prior to diagnosing DTC B3031.
DTC B3031

Step Action Yes No
Schematic Reference: Theft Deterrent System Schematics 
Connector End View Reference: Theft Deterrent System Connector End Views 
1 Did you perform the Theft Deterrent 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 display DTCs function on the scan tool.
Does the scan tool display DTC B3031 as a current DTC?		 Go to Step 3  Go to Step 4 
3  Does the scan tool display DTC B2947, B2948, B2957, B2958, B2960 or B3033? Go to Diagnostic Trouble Code (DTC) List  -
4
  1. Use the scan tool in order to clear the DTCs.
  2. Turn OFF the ignition
  3. Start the vehicle.
  4. 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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