dh0501a00a23ux

5.1 - Convenience Feature (CF) 23 - Electrical Test Program, Test Model 140

Type dh · topic 80.45 · version 9546 · 1995-11-16

Applies to:

Where it sits

Function group 3 Body › 80 Central locking system, convenience operation, drive authorization systems › 80.45 Convenience feature (CF)/Convenience locking system — Series 140

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

1.0

Voltage supply

Circuit 30A

N57

10 21

(A.10) (A.21)

Ignition: OFF

11 - 14 V

1.1,

Circuit 31A.

1.1

Circuit 30A

N57

21

(A.21)

Ignition: OFF

11 - 14 V

Circuit 30A.

2.0

Voltage supply

Circuit 30B

N57

62 53

(B.21) (B.12)

Ignition: OFF

11 - 14 V

2.1,

Circuit 31B.

2.1

Circuit 30B

N57

53

(B.12)

Ignition: OFF

11 - 14 V

Circuit 30B.

3.0

Voltage supply

Circuit 30E

N57

11 16

(A.11) (A.16)

Ignition: OFF

11 - 14 V

3.1,

Circuit 31E.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

3.1

Circuit 30E

N57

16

(A.16)

Ignition: OFF

11 - 14 V

Circuit 30E.

4.0

Voltage supply

Circuit 15R

N57

10 8

(A.10) (A.8)

Ignition lock in position 1

11 - 14 V

Circuit 15R,

Circuit 31A.

5.0

Front door contact switches (S17/3, S17/4) circuit

N57

10 9

(A.10) (A.9)

Pull fuse (F3-17)

Ignition: OFF

Front doors: Closed

Left front door: OPEN

(right front door closed).

Right front door: OPEN

(left front door closed).

11 - 14 V

<2 V

<2 V

Wiring,

Left door switch (S17/3),

Right door switch (S17/4),

CF control module (N57),

ATA control module (N26),

PSE control module (A37 or A37/1).

Wiring,

5.1.

Wiring,

5.1.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

5.1

S17/3, S17/4

N57

10 9

(A.10) (A.9)

Ignition: OFF

Overhead console: all switches in OFF position.

Disconnect connector 1

of A37 or A37/1.

Disconnect connector A

of N57.

All doors: CLOSED

11 - 14 V

Wiring,

5.2,

5.3.

5.2

S17/3

N57

10 9

(A.10) (A.9)

See 5.1

Disconnect S17/4 connector.

11 - 14 V

Wiring,

S17/3.

5.3

S17/4

N57

10 9

(A.10) (A.9)

See 5.1

Disconnect S17/3 connector.

11 - 14 V

Wiring,

S17/4.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

6.0

Sliding/pop-up roof

circuit (S13/2)

Function:

Closing sliding/pop-up roof

N57

10 30

(A.10) (C.3)

Ignition: ON

S13/2:

Rest position.

Press and hold in close position.

<1 V

11 - 14 V


Sliding/pop-up roof closes.

Wiring,

6.1,

6.2.

Wiring,

6.1,

6.2.

Sliding/pop-up roof motor (M12m1),

Sliding/pop-up roof relay (M12k1).

6.1

S13/2

N57

28 30

(C.1) (C.3)

Ignition: OFF

Disconnect connector C from N57.

S13/2:

Rest position.

Press and hold sun roof in close position.

Press and hold pop-up roof in close position.

>20 kW

<1 W

<1 W

Wiring,

S13/2.

Wiring,

S13/2.

Wiring,

S13/2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

6.2

S13/2,

N57

N57

10 28

(A.10) (C.1)

Ignition: ON

11 - 14 V

Wiring,

6.3.

6.3

N57

N57

10 28

(A.10) (C.1)

Ignition: OFF

Disconnect connector C of sliding/pop-up roof wiring harness from test cable

( 22, Figure 1).

Ignition: ON

11 - 14 V

N57.

7.0

Sliding/pop-up roof

circuit (S13/2)

Function:

Opening sliding roof

N57

10 31

(A.10) (C.4)

Ignition: ON

S13/2:

Rest position.

Press and hold sliding roof in open position.

<1V

11 - 14 V

Sliding roof opens.

Wiring,

7.1,

7.2.

Wiring,

7.1,

7.2.

Sliding/pop-up roof motor (M12m1),

Sliding/pop-up roof relay (M12k1).

Electrical Test Program - Test

Test step

DTC

Scope of test

Test connection

Test condition

Nominal value

Possible cause/remedy

7.1

S13/2

N57

28 31

(C.1) (C.4)

Ignition: OFF

Disconnect connector C from N57.

S13/2:

Rest position.

Press and hold sliding roof in open position.

>20 kW

<1 W

Wiring,

S13/2.

Wiring,

S13/2.

7.2

S13/2,

N57

N57

10 28

(A.10) (C.1)

Ignition: ON

11 - 14 V

Wiring,

7.3.

7.3

N57

N57

10 28

(A.10) (C.1)

Ignition: OFF

Disconnect connector C of sliding/pop-up roof wiring harness from test cable

( 22, Figure 1).

Ignition: ON

11 - 14 V

N57.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

8.0

Sliding/pop-up roof

circuit (S13/2)

Function:

Opening pop-up roof

N57

10 29

(A.10) (C.2)

Ignition: ON

S13/2:

Rest position.

Press and hold pop-up roof in open position.

<1 V

11 - 14 V


Pop-up roof opens.

Wiring,

8.1,

8.2.

Wiring,

8.1,

8.2.

Sliding/pop-up roof motor (M12m1),

Sliding/pop-up roof relay (M12k1).

8.1

S13/2

N57

28 29

(C.1) (C.2)

Ignition: OFF

Disconnect connector C from N57.

S13/2:

Rest position.

Press and hold pop-up roof in open position.

>20 kW

<1 W

Wiring,

S13/2.

Wiring,

S13/2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

8.2

S13/2,

N57

N57

10 28

(A.10) (C.1)

Ignition: ON

11 - 14 V

Wiring,

8.3.

8.3

N57

N57

10 28

(A.10) (C.1)

Ignition: OFF

Disconnect connector C of sliding/pop-up roof harness from test cable

( 22, Figure 1).

Ignition: ON

11 - 14 V

N57.

9.0

USA/ECE model recognition 1)

N57

33 34

(D.2) (D.3)

Ignition: OFF

Disconnect connector D from N57.

Code USA:

<1 W

Code ECE:

>20 kW

Wiring.

Wiring.

1) ECE = European version.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

10.0

Left front window

circuit (S21/1)

Function:

Opening

N57

10 24

(A.10) (E.3)

Ignition: ON

S21/1:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

9 - 14 V


<1 V

<1 V

Wiring,

10.1,

CF control module (N57).

Wiring,

10.1.

Wiring,

10.1.

10.1

S21/1

N57

10 24

(A.10) (E.3)

Ignition: OFF

Disconnect connector E from (N57).

S21/1:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW

<2 W

<2 W

Wiring,

S21/1.

Wiring,

S21/1.

Wiring,

S21/1.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

11.0

Left front window

circuit (S21/1)

Function:

Closing

N57

10 26

(A.10) (E.5)

Ignition: ON

S21/1:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

9 - 14 V

<1 V

<1 V

Wiring,

11.1,

CF control module (N57).

Wiring,

11.1.

Wiring,

11.1.

11.1

S21/1

N57

10 26

(A.10) (E.5)

Ignition: OFF

Disconnect connector E from N57.

S21/1:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

>20 kW

<2 W

<2 W

Wiring,

S21/1.

Wiring,

S21/1.

Wiring,

S21/1.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

12.0

Left front window

circuit (S21/1)

Function:

One-touch operation

N57

10 27

(A.10) (E.6)

Ignition: ON

S21/1:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

9 - 14 V

9 - 14 V

<1 V

Wiring,

12.1,

CF control module (N57).

Wiring,

12.1.

Wiring,

12.1.

12.1

S21/1

N57

10 27

(A.10) (E.6)

Ignition: OFF

Disconnect connector E from N57.

S21/1:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW

>20 kW

<2 W

Wiring,

S21/1.

Wiring,

S21/1.

Wiring,

S21/1.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

13.0

Left front window

circuit (S21/1)

Function:

One-touch operation

N57

10 27

(A.10) (E.6)

Ignition: ON

S21/1:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

9 - 14 V

9 - 14 V

<1 V

Wiring,

13.1,

CF control module (N57).

Wiring,

13.1,

N57.

Wiring,

13.1.

13.1

S21/1

N57

10 27

(A.10) (E.6)

Ignition: OFF

Disconnect connector E from N57.

S21/1:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

>20 kW


>20 kW

<2 W

Wiring,

S21/1.

Wiring,

S21/1.

Wiring,

S21/1.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

14.0

Right front window

circuit (S21/2)

Function:

Opening

N57

10 38

(A.10) (F.3)

Ignition: ON

S21/2:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

9 - 14 V

<1 V

<1 V

Wiring,

14.1,

CF control module (N57).

Wiring,

14.1.

Wiring,

14.1.

14.1

S21/2

N57

10 38

(A.10) (F.3)

Ignition: OFF

Disconnect connector F

from N57.

S21/2:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW

<2 W

<2 W

Wiring,

S21/2.

Wiring,

S21/2.

Wiring,

S21/2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

15.0

Right front window

circuit (S21/2)

Function:

Closing

N57

10 36

(A.10) (F.1)

Ignition: ON

S21/2:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

9 - 14 V

<1 V

<1 V

Wiring,

15.1,

CF control module (N57).

Wiring,

15.1.

Wiring,

15.1.

15.1

S21/2

N57

10 36

(A.10) (F.1)

Ignition: OFF

Disconnect connector F

from N57.

S21/2:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

>20 kW

<2 W

<2 W

Wiring,

S21/2.

Wiring,

S21/2.

Wiring,

S21/2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

16.0

Right front window

circuit (S21/2)

Function:

One-touch operation

N57

10 37

(A.10) (F.2)

Ignition: ON

S21/2:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

9 - 14 V

9 - 14 V

<1 V

Wiring,

16.1,

CF control module (N57).

Wiring,

16.1,

N57.

Wiring,

16.1.

16.1

S21/2

N57

10 37

(A.10) (F.2)

Ignition: OFF

Disconnect connector F

from N57.

S21/2:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW

>20 kW

<2 W

Wiring,

S21/2.

Wiring,

S21/2.

Wiring,

S21/2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

17.0

Right front window

circuit (S21/2)

Function:

One-touch operation

N57

10 37

(A.10) (F.2)

Ignition: ON

S21/2:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

9 - 14 V

9 - 14 V

<1 V

Wiring,

17.1,

CF control module (N57).

Wiring,

17.1,

N57.

Wiring,

17.1.

17.1

S21/2

N57

10 37

(A.10) (F.2)

Ignition: OFF

Disconnect connector F

from N57.

S21/2:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

>20 kW

>20 kW

<2 W

Wiring,

S21/2.

Wiring,

S21/2.

Wiring,

S21/2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

18.0

Left rear window switch (S21/3) and front console switch (S21/5) circuit

Function:

Opening

S21/3

N57

10 39

(A.10) (F.4)

Ignition: ON

Rear power window safety switch (S21/7): OFF

S21/3 and S21/5:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

9 - 14 V

<1 V

<1 V

Wiring,

18.1,

18.2,

CF control module (N57).

Wiring,

18.1,

30.0.

Wiring,

18.1.

S21/5

Press and hold to open

(position 1).

Press and hold to open

(position 2).

<1 V

<1V

Wiring,

18.2.

Wiring,

18.2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

18.1

S21/3

N57

10 39

(A.10) (F.4)

Ignition: OFF

Disconnect connector F from N57.

S21/3 and S21/5:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW


<3 W


<3 W

Wiring,

S21/3,

S21/5.

Wiring,

S21/3.

Wiring,

S21/3.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

18.2

S21/5, (center console)

N57

10 39

(A.10) (F.4)

Ignition: OFF

Disconnect connector F

from N57. Disconnect left rear door plug connection (X35/3) (Figure 6).

S21/5:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW


<2 W


<2 W

Wiring,

S21/5.

Wiring,

S21/5.

Wiring,

S21/5.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

19.0

Left rear window switch (S21/3) and front console switch (S21/5) circuit

Function:

Closing

S21/3

N57

10 41

(A.10) (F.6)

Ignition: ON

Rear power window safety switch (S21/7): OFF

S21/5 and S21/3:

Rest position.

Press and hold to close

(position 1).

Press and hold to open

(position 2).

9 - 14 V

<1 V

<1 V

Wiring,

19.1,

19.2.

Wiring,

19.1,

26.0.

Wiring,

19.1.

S21/5

Press and hold to close

(position 1).

Press and hold to close

(position 2).

<1 V

<1V

Wiring,

19.2.

Wiring,

19.2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

19.1

S21/3

N57

10 41

(A.10) (F.6)

Ignition: OFF

Disconnect connector F

from N57.

S21/5 and S21/3:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

>20 kW


<3 W


<3 W

Wiring,

S21/3,

S21/5.

Wiring,

S21/3.

Wiring,

S21/3.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

19.2

S21/5, (center console)

N57

10 41

(A.10) (F.6)

Ignition: OFF

Disconnect connector F

from N57. Disconnect left rear door plug connection (X35/3) (Figure 6).

S21/5:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

>20 kW


<2 W


<2 W

Wiring,

S21/5.

Wiring,

S21/3.

Wiring,

S21/5.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

20.0

Left rear window switch (S21/3) and front console switch (S21/5) circuit

Function:

One-touch operation

S21/3

N57

10 40

(A.10) (F.5)

Ignition: ON

Rear power window safety switch (S21/7): OFF

S21/5 and S21/3:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

9 - 14 V

9 - 14 V

<1 V

Wiring,

20.1,

20.2,

CF control module (N57).

Wiring,

20.1,

N57.

Wiring,

20.1,

26.0.

S21/5

Press and hold to open

(position 1).

Press and hold to open

(position 2).

9 - 14 V

<1V

Wiring,

20.2,

N57.

Wiring,

20.2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

20.1

S21/3

N57

10 40

(A.10) (F.5)

Ignition: OFF

Disconnect connector F

from N57.

S21/5 and S21/3:

Rest position

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW


>20 kW


<3 W

Wiring,

S21/3,

S21/5.

Wiring,

S21/3.

Wiring,

S21/3.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

20.2

S21/5, (center console)

N57

10 40

(A.10) (F.5)

Ignition: OFF

Disconnect connector F

from N57. Disconnect left rear door plug connection (X35/3) (Figure 6).

S21/5:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW


>20 kW


<2 W

Wiring,

S21/5.

Wiring,

S21/5.

Wiring,

S21/5.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

21.0

Left rear window switch (S21/3) and front console switch (S21/5) circuit

Function:

One-touch operation

S21/3

N57

10 40

(A.10) (F.5)

Ignition: ON

Rear power window safety switch (S21/7): OFF

S21/5 and S21/3:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

9 - 14 V

9 - 14 V

<1 V

Wiring,

21.1,

21.2,

CF control module (N57).

Wiring,

21.1,

N57.

Wiring,

21.1.

S21/5

Press and hold to close

(position 1).

Press and hold to close

(position 2).

9 - 14 V

<1 V

Wiring,

21.2,

N57.

Wiring,

21.2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

21.1

S21/3

N57

10 40

(A.10) (F.5)

Ignition: OFF

Disconnect connector F

from N57.

S21/5 and S21/3:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

>20 kW


>20 kW


<3 W

Wiring,

S21/3,

S21/5.

Wiring,

S21/3.

Wiring,

S21/3.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

21.2

S21/5, (center console)

N57

10 40

(A.10) (F.5)

Ignition: OFF

Disconnect connector F

from N57. Disconnect left rear door plug connection (X35/3) (Figure 6).

S21/5:

Rest position.

Press and hold to close

(position 1).

Press and hold to close

(position 2).

>20 kW


>20 kW


<2 W

Wiring,

S21/5.

Wiring,

S21/5.

Wiring,

S21/5.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

22.0

Right rear window circuit

(S21/4, S21/6)

Function:

Opening

S21/4

N57

10 23

(A.10) (E.2)

Ignition: ON

Rear power window safety switch (S21/7): OFF

S21/4 and S21/6:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

9 - 14 V

<1 V

<1 V

Wiring,

22.1,

22.2,

CF control module (N57).

Wiring,

22.1,

26.0.

Wiring,

22.1.

S21/6

Press and hold to open

(position 1).

Press and hold to open

(position 2).

<1V

<1V

Wiring,

22.2.

Wiring,

22.2.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

22.1

S21/4

N57

10 23

(A.10) (E.2)

Ignition: OFF

Disconnect connector E from N57.

S21/4 and S21/6:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW


<3 W


<3 W

Wiring,

S21/4,

S21/6.

Wiring,

S21/4.

Wiring,

S21/4.

Electrical Test Program - Test

Test step

DTC

Test scope

Test connection

Test condition

Nominal value

Possible cause/Remedy

22.2

S21/6, (center console)

N57

10 23

(A.10) (E.2)

Ignition: OFF

Disconnect connector E from N57. Disconnect right rear door plug connection (X35/4) (Figure 6).

S21/6:

Rest position.

Press and hold to open

(position 1).

Press and hold to open

(position 2).

>20 kW


<2 W


<2 W

Wiring,

S21/6.

Wiring,

S21/6.

Wiring,

S21/6.

Referenced documents