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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1082 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC B1327: Device Power Circuit Low >> Test Description

Test Description

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

The numbers below refer to the step numbers on the diagnostic table.

  1. 3:  Tests for the proper operation of the complete circuit.
  2. 4:  Tests for the proper operation of the signal input circuit.
DTC B1327

Step Action Value(s) Yes No
Schematic Reference: Theft Deterrent System Schematics in Theft Deterrent
Connector End View Reference: Body Control System Connector End Views in Body Control Systems
1 Did you perform the Engine Electrical Diagnostic System Check? - Go to Step 2  Go to Diagnostic System Check - Engine Electrical 
2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Electronic Battery FD in the BCM data list.
Does the scan tool indicate the battery voltage is greater than the specified value?		 9.0 volts Go to Step 3  Go to Charging System Test 
3  Replace the VTD. Refer to Theft Deterrent Control Module Replacement in Theft Deterrent.
Did you complete the replacement?		 - Go to Step 4  -
4 
  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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