Test plan for the seat adjustment
In the case of complaint "seat adjustment does not function", proceed according to test plan. 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. See TOOLS
TEST PLAN FOR SEAT ADJUSTMENT
| Work instruction | Correct result | Incorrect result | |
|---|---|---|---|
| 1 | Actuate switch on seat for seat adjustment, observe end position. | Switch in control module is audible. Step 3 | Step 2 |
| 2 | Check fuse in the fuse box for the seat adjustment. | Step 3 | Replace fuse and perform function test. -> End |
| 3 | 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 4 If a function is not audible under step 1, replace the control module memory. | Check plug connection and wiring. -> End |
| 4 | Measure the voltage on the inserted plug for the seat adjustment (on control module memory or below the seat - without memory) using a multimeter. Actuate the seat adjuster switch with probe tip + on RE and with probe tip - on BK. | > 4 V, when switching from front - back, the voltage switches from + to - Step 5 | Replace switch. -> End |
| 5 | Remove motor and check input shaft. | Remove faulty part. -> End | |