LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1571 (Power Seat System) >> Diagnostic Information and Procedures >> DTC B1785 or B2030 >> Diagnostic Aids

Diagnostic Aids

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.

If the DTC is only found in history, the fault may be intermittent. Refer to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems.

DTC B1785 or B2030

Step Action Yes No
Schematic Reference:  Power Seats Schematics  
1 Did you perform the Power Seat Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Power Seat Systems 
2
  1. Install a scan tool.
  2. Observe the seat adjuster switch parameter for which the DTC has set in the DSM data list.
Does the scan tool display inactive?		 Go to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems Go to Step 3 
3
  1. Disconnect the seat adjuster switch connector.
  2. Observe the seat adjuster switch parameter in the DSM data list.
Does the scan tool display inactive?		 Go to Step 5  Go to Step 4 
4 Test the seat switch signal circuits which set the DTC for an open, a short to ground or a short to battery voltage. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
Did you find and correct the condition?		 Go to Step 7  Go to Step 6 
5 Replace the seat adjuster switch. Refer to Seat Switch Replacement - Power .
Is the repair complete?		 Go to Step 7  -
6 Replace the seat module. Refer to Memory Seat Control Module Replacement .
Did you complete the replacement?		 Go to Step 7  -
7
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the system in order to verify the repair.
Does the DTC reset?		 Go to Step 2  System OK
scientia non olet · About LEMON Manuals