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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1393 (Door System, Mirror System & Window System) >> Diagnostic Information and Procedures >> DTC B1723 >> Conditions for Clearing the DTC

Conditions for Clearing the DTC

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

When the fault is no longer present, the door module changes the current DTC to a history DTC. The door module will clear the history DTC after 50 fault free ignition cycles, or in response to a scan tool command.

DTC B1723

Step Action Yes No
1 Did you perform the Door Systems Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Door Systems 
2
  1. Turn ON the ignition, with the engine OFF.
  2. Activate the mirror switch in the down and right positions.
Does the mirror move down and right with each activation?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3
  1. Turn OFF the ignition.
  2. Disconnect the mirror from the appropriate door module.
  3. Turn ON the ignition, with the engine OFF.
  4. Probe each of the mirror motor down and right control circuit pins at the door module one at a time with a test lamp that is connected to a good ground.
Did the test lamp illuminate at either or both of the test points?		 Go to Step 6  Go to Step 4 
4
  1. Connect a test lamp between the mirror motor down control circuit pin and a good ground.
  2. Activate the mirror switch to the down position.
Does the test lamp illuminate?		 Go to Step 5  Go to Step 7 
5
  1. Connect a test lamp between the mirror motor right control circuit pin and a good ground.
  2. Activate the mirror switch to the right position.
Does the test lamp illuminate?		 Go to Step 6  Go to Step 7 
6 Inspect for poor connection at the harness connector of the appropriate door module. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Did you find and correct the conditions?		 Go to Step 9  Go to Step 8 
7
IMPORTANT: perform the set up procedure for the appropriate door module. Refer to DCM Programming/RPO Configuration .
Replace the appropriate door module. Refer to Switch Replacement - Door Lock and Side Window - Driver  or Switch Replacement - Door Lock and Side Window - Passenger .Did you complete the replacement?		 Go to Step 9  -
8 Replace the mirror. Refer to Motor Replacement - Power Mirror .
Did you complete the replacement?		 Go to Step 9  -
9
  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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