LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1080 (Seat System) >> Diagnostic Information and Procedures >> DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415: Driver Seat Motor Position 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. 2:  Verify that the DTC is current or history by attempting to operate the seat adjuster motor for which the code is set.
  2. 3:  Tests the adjuster motor supply circuits for proper operation.
DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

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. With a scan tool, operate the seat adjuster motor through the full range of adjustment in both directions.
Does the seat adjuster motor operate through the full range of adjustment?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 
  1. Disconnect the seat adjuster motor assembly connector.
  2. Connect a test lamp between the affected adjuster motor control circuit terminals in the seat harness connector.
  3. With a scan tool, command the adjuster motor active in both directions.
Does the test lamp turn ON and OFF with each command?		 Go to Step 5  Go to Step 4 
4 Test and repair the adjuster motor control circuits for the following conditions:
  • Short to ground
  • Open or high resistance
  • 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 for poor connections at the adjuster motor assembly connector. 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 7 
6 Inspect for poor connections at the harness connector of the memory seat module. 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 8 
7 Replace the seat adjuster motor assembly. Refer to Seat Adjuster Replacement - Front .
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 in order to verify the repair.
Does the DTC reset?		 Go to Step 2  System OK
scientia non olet · About LEMON Manuals