Test plan for the seat heating
WARNING: This page is about a different variant/trim than selected.
In the case of the complaint "seat heating does not function", proceed according to the following work instruction. Work aids: Use wiring diagram and multimeter. See TOOLS .
TEST PLAN FOR SEAT HEATING RESULTS
| Work instruction | Correct result | Incorrect result | |
|---|---|---|---|
| 1 | Actuate seat heating switch, LED lights up in the switch | Step 2 | Step 5 |
| 2 | See REMOVING AND INSTALLING FRONT SEAT, - AS OF MY 1996
. Switch on ignition, measure battery voltage on the plug bracket for the seat heating control module using a multimeter. Pin 5 and pin 9. |
> 11V Step 3 | Check plug connection and wiring. -> End |
| 3 | Perform heat element resistance test for the backrest and seat area using a multimeter. Pull the plug off the seat heating control module and check the resistance on the plug bracket RE/WT pin 3 and BR pin 9. | Depending on temperature, approx 2 Step 4 | Check resistance test on backrest and seat area heating elements via the respective connecting plug (approx. 1 ) and replace defect heating element ->. End |
| 4 | Seat heating control module | replace. -> End | |
| 5 | Check fuse in the fuse box for the seat heating. | Step 6 | Replace fuse and perform function test. -> End |
| 6 | Check seat heating switch lines for continuity using a multimeter. | Replace switch for the seat heating. -> End | |