Test plan for the lumbar adjustment device
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
In the case of the complaint "lumbar support does not function", proceed according to the following work instruction. As the seat functions vary, the test plan principally complies with the seat version with seat memory adjustment. Work aids: Use wiring diagram and multimeter. SeeTOOLS .
TEST PLAN FOR LUMBAR ADJUSTMENT DEVICE
| Work instruction | Correct result | Incorrect result | |
|---|---|---|---|
| 1 | Actuate switch positions on seat for lumbar support. Compressor for the lumbar is audible. | Step 2 | Step 4 |
| 2 | Actuate switch positions on seat for lumbar support. Valve block switches. | Step 3 | Step 4 |
| 3 | Take cover off backrest, check connections for air hose, lumbar support and valve block. | Check pressure switch and hose routing and replace if necessary. -> End | |
| 4 | Check fuse in the fuse box for the lumbar. | Step 5 | Replace fuse and perform function test. -> End |
| 5 | Measure the battery voltage on plug X 16/ X 17 without memory or terminals 30 and 31 on the memory SG (see wiring diagram) using a multimeter. | > 11V Step 6 | Check plug connection and wiring. -> End |
| 6 | When actuating the switch for the lumbar, clicking noises are audible from the control module for the seat memory. | Switch reacts. Step 7 | Step 8 |
| 7 | Remove cover from backrest, check battery voltage of compressor plug connection using multimeter. | > 11V Replace compressor. -> End | Check wiring and plug connection. -> End |
| 8 | Control module for the seat memory. | Replace -> End | |