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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1080 (Seat System) >> Diagnostic Information and Procedures >> DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820: Driver Seat Switch Circuit >> 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:  This step tests the seat adjuster switch for an internal fault.
  2. 4:  When the seat adjuster switch is disconnected the faulty switch signal circuit will be isolated.
DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820

Step Action Yes No
Schematic Reference: Driver Seat Schematics 
Connector End View Reference: Power Seat Systems Connector End Views 
1 Did you perform the Power Seat Systems Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Power Seat Systems 
2
  1. Install a scan tool.
  2. Verify that the DTC is current.
Is the DTC current?		 Go to Step 3  Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
3 
  1. Disconnect the seat adjuster switch connector.
  2. With a scan tool, observe the current DTCs.
Is the DTC current?		 Go to Step 4  Go to Step 5 
4  Test the switch signal circuit indicated in the previous step for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 9  Go to Step 6 
5 Inspect and repair any damage to the seat adjuster switch connector and terminals which may cause the condition. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 9  Go to Step 7 
6 Inspect and repair any damage to the memory seat module connector and terminals which may cause the condition. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 9  Go to Step 8 
7 Replace the seat adjuster switch. Refer to Seat Switch Replacement - Power .
Did you complete the replacement?		 Go to Step 9  -
8 Replace the memory seat module. Refer to Memory Seat Control Module Replacement .
Did you complete the replacement?		 Go to Step 9  -
9
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the system 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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