C280 Powerseat not moving
#1
C280 Powerseat not moving
The power seats of my 1999 C280
- will move after ten minutes of driving;
- will NOT move immediately after engine start; and
- will move after going over a big bump.
Both driver and passenger side behave exactly the same (move or not move) at any given time.
Wiring - Checked. Perfect like new visually.
Fuse Box - Checked front & back. Nothing blown.
Jiggled wires - No Difference.
All moving power seats will fail immediately when the engine is turned off. They won't work for a good ten minutes even the key is turned back on (any position) immediately.
Could this be a RELAY problem? A computer problem? Or somethingelse? A known issue or I am the first victim?
Thanks,
A.
- will move after ten minutes of driving;
- will NOT move immediately after engine start; and
- will move after going over a big bump.
Both driver and passenger side behave exactly the same (move or not move) at any given time.
Wiring - Checked. Perfect like new visually.
Fuse Box - Checked front & back. Nothing blown.
Jiggled wires - No Difference.
All moving power seats will fail immediately when the engine is turned off. They won't work for a good ten minutes even the key is turned back on (any position) immediately.
Could this be a RELAY problem? A computer problem? Or somethingelse? A known issue or I am the first victim?
Thanks,
A.
#5
#6
RE: C280 Powerseat not moving
Seems like a loose connection somewhere. Shake down the wiring (again) while an assistant holds the switches, one at a time. If none of the motors works in either seat then it is a component or wire that is common to the entire system.
Check ground connections:
A7 - in trunk rt side, beneath large cover and near relays.
W18 - under drivers seat.
W19 - under pass seat near door sill.
Check relay K24 (convenience relay module) - rt side of trunk.
check module A37 (PSE control module) - rt side of trunk.
Also, it looks like a bad door switch could effect the system?
Check ground connections:
A7 - in trunk rt side, beneath large cover and near relays.
W18 - under drivers seat.
W19 - under pass seat near door sill.
Check relay K24 (convenience relay module) - rt side of trunk.
check module A37 (PSE control module) - rt side of trunk.
Also, it looks like a bad door switch could effect the system?
#7
RE: C280 Powerseat not moving
Not a bad door switch because cabin lights responds fine to door status.
Which one is K24 and which one is A37?
I have recently replaced the one located left to the trunk fuse box.
Thanks.
A
Which one is K24 and which one is A37?
I have recently replaced the one located left to the trunk fuse box.
Thanks.
A