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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1852 (Immobilizer System) >> Diagnostic Information and Procedures >> DTC B3033 >> Test Description

Test Description

WARNING: This page is about a different car, the 2007 Saturn Vue. 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 a magnetic field near the ignition lock cylinder.
DTC B3033

Step Action Yes No
Schematic Reference: Immobilizer Schematics 
Connector End View Reference: Immobilizer Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle i
2
  1. Install a scan tool.
  2. 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 (BCM) display DTCs function on the scan tool.
Does the scan tool display DTC B3033 as a current DTC?
Go to Step 3  Go to Testing for Intermittent Conditions and Poor Connections
Inspect the area around the ignition lock cylinder for any device which could create a magnetic field such as an audio speaker, magnet, etc.
Is there a magnetic device near the ignition lock cylinder?
Go to Step 4  Go to Step 5 
4 Remove the device creating the magnetic force.
Did you complete the repair?
Go to Step 8  -
5 Inspect for poor connections at the Passlock™ sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
Go to Step 8  Go to Step 6 
6 Replace the Passlock™ sensor. Refer to Ignition Lock Cylinder Case Replacement .
Did you complete the replacement?
Go to Step 7  -
7 Perform the Programming Immobilizer System Components  procedure.
Is the repair complete?
Go to Step 8  -
8
IMPORTANT: You may have to wait up to 10 minutes in order to reset the BCM and synchronize all of the Passlock™ components.
  1. Use the scan tool in order to clear the DTCs.
  2. Turn OFF the ignition.
  3. IMPORTANT: Do not start the vehicle.
  4. Momentarily rotate the ignition switch to CRANK.
  5. Release the ignition switch to ON.
  6. Select the body control module display DTCs function on the scan tool.
Does the DTC reset?
Go to Step 3  System OK