Complaint/Problem |
Possible cause |
Test step/Remedy 1) |
Front power seat adjustment does not function at all |
Convenience relay module (K24).
Front power seat control module (N32/1, N32/2).
Front power seat switch group (S91, S92).
|
DM Body & Accessories Vol. 2.1 section 5.1
Left seat Right seat
23 1.0 23 24.0
23 2.0 23 25.0 |
Front power seat, seat fore/aft adjustment does not function
|
Front power seat control module (N32/1, N32/2).
Front power seat switch group (S91, S92).
Fore/aft switch (S91s1, S92s1).
Fore/aft motor (M27m1,
M28m1). |
Left seat Right seat
23 1.0 23 24.0
23 2.0 23 25.0
23 3.0 23 26.0
23 4.0, 23 27.0,
23 5.0, 23 28.0,
|
Front power seat, front height adjustment does not function
|
Front power seat control module (N32/1, N32/2).
Front power seat switch group (S91, S92).
Front raise/lower switch (S91s3, S92s3).
Front raise/lower
motor (M27m3, M28m3). |
Left seat Right seat
23 1.0 23 24.0
23 2.0 23 25.0
23 6.0 23 29.0
23 7.0, 23 30.0,
23 8.0, 23 31.0,
|
|
Front power seat control module (N32/1, N32/2).
Front power seat switch group (S91, S92).
Rear raise/lower switch (S91s2, S92s2).
Rear raise/lower
motor (M27m2, M28m2). |
Left seat Right seat
23 1.0 23 24.0
23 2.0 23 25.0
23 9.0 23 32.0
23 10.0, 23 33.0,
23 11.0, 23 34.0 |
Front power seat, backrest fore/aft adjustment does not function
|
Front power seat control module (N32/1, N32/2).
Front power seat switch group (S91, S92).
Backrest fore/aft switch (S91s5, S92s5).
Backrest fore/aft
motor (M27m5, M28m5).
|
Left seat Right seat
23 1.0 23 24.0
23 2.0 23 25.0
23 12.0 23 35.0
23 13.0, 23 36.0,
23 14.0, 23 37.0
|
Front power seat, head restraint adjustment does not function
|
Front power seat control module (N32/1, N32/2).
Front power seat switch group (S91, S92).
Head restraint raise/lower switch (S91s4, S92s4).
Head restraint raise/lower motor (M27m4, M28m4). |
Left seat Right seat
23 1.0 23 24.0
23 2.0 23 25.0
23 15.0 23 38.0
23 16.0, 23 39.0,
23 17.0, 23 40.0
|
Front power seat, cushion fore/aft adjustment does not function |
Front power seat control module (N32/1, N32/2).
Front power seat switch group (S91, S92).
Seat cushion fore/aft switch (S91s10, S92s10).
Seat cushion fore/aft
motor (M27m6, M28m6). |
Left seat Right seat
23 1.0 23 24.0
23 2.0 23 25.0
23 18.0 23 41.0
23 19.0, 23 42.0,
23 20.0, 23 43.0,
|
Front power seat memory does not function
|
Front power seat control module (N32/1, N32/2).
Front power seat switch group (S91, S92).
Memory button switch (S91s9, S92s9). |
Left seat Right seat
23 1.0 23 24.0
23 2.0 23 25.0
23 21.0 23 44.0
|
Front power seat switch group illumination does not function
|
Wiring.
Illumination (S91e1, S92e1), Front power seat switch
group (S91, S92).
|
Left seat Right seat
23 22.0 23 45.0
23 23.0 23 46.0 |
Coupé only (if applicable)
Front power seat forward and head restraint down adjust (convenience) feature function does not operate with front door open and with the backrest tilted forward |
Left/right door switch (S17/3, S17/4).
Left/right front seatback microswitch (S91/1, S92/1).
Front power seat control module (N32/1, N32/2), Programming
|
Left seat Right seat
23 49.0 23 49.0
23 47.0 23 48.0
23 50.0 23 51.0 |
Coupé only (if applicable)
Front power seat backward and head restraint up adjust (convenience) feature function does not operate with front door open and with the backrest tilted backward |
Left/right door switch (S17/3, S17/4).
Left/right front seatback microswitch (S91/1, S92/1).
Front power seat control module (N32/1, N32/2), Programming
|
Left seat Right seat
23 49.0 23 49.0
23 47.0 23 48.0
23 50.0 23 51.0 |