| Test step |
Test scope |
Test connection
|
Test condition |
Nominal value |
Possible cause/Remedy |
| 1.0 |
PSE control module
(A37/4, A37/5)
Voltage supply
Circuit 30 |
2 
(C.2)
|
A37/4, A37/5
|
 8 (C.8)
|
|
11 - 14 V |
Wiring,
Circuit 30,
 1.1 |
| 1.1 |
Circuit 30 |
|
A37/4, A37/5
|
8
(C.8)
|
|
11 - 14 V |
Wiring,
Circuit 30. |
| 2.0 |
Central locking interior
control switch (S85) |
|
|
|
Left and right front door
closed, vehicle unlocked from outside.
S85:
Rest position
Press to lock
Press to unlock:
|
CL: locks.
CL: unlocks.
|
Wiring,
2.1,
 32
2.0,
32 PSE
1.0,
PSE control module (A37/4, A37/5).
Wiring,
2.1,
32
1.0,
32 PSE
2.0,
A37/4, A37/5.
|
| 2.1 |
S85 |
6
(C.6)
2 (C.2)
7
|
|
8 (C.8)
6
(C.6)
8
|
Disconnect PSE control module
(A37/4, A37/5)
from .
S85:
Rest position
Press and hold to Lock
S85:
Rest position
Press and hold to unlock |
<1 V
11 - 14 V
<1 V
11 - 14 V
|
Wiring,
S85.
|
| 3.0 |
Right front door lock
switch circuit (convenience, S87/1) |
|
|
|
Vehicle locked.
Turn key to right,
Hold to unlock:
Turn key to left,
Hold to lock.
|
CL: unlocks.
CL: locks.
|
Wiring,
3.1, 3.2,
4.1, 4.2,
5.1, 5.2,
32
1.0,
32 PSE
2.0,
PSE control module (A37/4, A37/5),
Convenience control module (N57).
Also if so equipped:
ATA control module (N26).
Wiring,
3.1, 3.2,
4.1, 4.2,
5.1, 5.2,
32
2.0,
32 PSE
1.0,
A37/4, A37/5,
N57.
Also if so equipped:
N26.
|
| 3.1 |
S87/1 |
2
(C.2)
|
A37/4, A37/5
|
1 (C.1)
|
Disconnect PSE control module
(A37/4, A37/5) from
.
Disconnect (X35/1) at left front door plug.
Disconnect (S88/2x1) at trunk lid switch connector.
S87/1:
Rest position.
Hold to unlock
|
>20 k
<40
|
Wiring,
S87/1.
|
| 3.2 |
S87/1 |
2
(C.2)
|
A37/4, A37/5
|
3
(C.3)
|
S87/1:
Rest position
Hold to lock
|
>20 k
<60
|
Wiring,
S87/1.
|
| 4.0 |
Trunk lid switch circuit
(convenience, S88/2) |
|
|
|
Turn key to left,
Hold to unlock
Turn key to right,
Hold to lock |
CL: unlocks.
CL: locks.
|
Wiring,
3.1, 3.2,
4.1, 4.2,
5.1, 5.2,
32
1.0,
32 PSE
2.0,
PSE control module (A37/4, A37/5),
Convenience control module (N57).
Also if so equipped:
ATA control module (N26).
Wiring,
3.1, 3.2,
4.1, 4.2,
5.1, 5.2,
32
2.0,
32 PSE
1.0,
A37/4, A37/5,
N57.
Also if so equipped:
N26.
|
| 4.1 |
S88/2 |
2
(C.2)
|
A37/4, A37/5
|
1 (C.1)
|
Disconnect PSE control module
(A37/4, A37/5) from
Disconnect (X35/1) left front and (X35/2) right front connectors.
S88/2:
Rest position
Hold to unlock
|
>20 k
<40
|
Wiring,
S88/2.
|
| 4.2 |
S88/2 |
2
(C.2)
|
A37/4, A37/5
|
3 (C.3)
|
S88/2:
Rest position
Hold to lock
|
>20 k
<60
|
Wiring,
S88/2.
|
| 5.0 |
Left front door lock switch
circuit (convenience, S86/1) |
|
|
|
Turn key to left.
Hold to unlock
Turn key to right.
Hold to lock
|
CL: unlocks.
CL: locks.
|
Wiring,
3.1, 3.2,
4.1, 4.2,
5.1, 5.2,
32
1.0,
32 PSE
2.0,
PSE control module (A37/4, A37/5),
Convenience control module (N57).
Also if so equipped:
ATA control module (N26).
Wiring,
3.1, 3.2,
4.1, 4.2,
5.1, 5.2,
32
2.0,
32 PSE
1.0,
A37/4, A37/5,
N57.
Also if so equipped:
N26.
|
| 5.1 |
S86/1 |
2 (C.2)
|
A37/4, A37/5
|
1 (C.1)
|
Disconnect PSE control module
(A37/4, A37/5) from
.
Disconnect (X35/2) at right front door plug.
Disconnect trunk lid lock switch (S88/2).
S86/1:
Rest position
Hold to unlock
|
>20 k
<40
|
Wiring,
S86/1.
|
| 5.2 |
S86/1 |
2
(C.2)
|
A37/4, A37/5
|
3
(C.3)
|
S86/1:
Rest position
Hold to lock
|
>20 k
<60 |
Wiring,
S86/1.
|
| 6.0 |
Left front door switch
circuit (S17/3)
Right front door switch
circuit (S17/4) |
2 (C.2)
|
A37/4, A37/5
|
5 (C.5)
|
Remove fuse F3-33.
All doors closed.
Alternately open and close front doors.
Both front doors closed.
One front door open.
|
11 - 14 V
<1 V
|
Wiring,
6.1,
6.2,
PSE control module (A37/4, A37/5),
Convenience control module (N57).
|
| 6.1 |
S17/3 |
2
(C.2)
|
A37/4, A37/5
|
5
(C.5)
|
Disconnect PSE control module
(A37/4, A37/5) from .
Disconnect right front door switch (S17/4).
Open left front door.
Close left front door.
|
<40
>20 k
|
Wiring,
S17/3.
|
| 6.2 |
S17/4
|
2
(C.2)
|
A37/4, A37/5
|
5 (C.5)
|
Disconnect PSE control module
(A37/4, A37/5) from
.
Disconnect left front door switch (S17/3).
Open right front door.
Close right front door.
|
<40
>20 k
|
Wiring,
S17/4.
|
 |
|
Printable
version
