Test
step |
DTC |
Scope of test |
Test connection
|
Test condition |
Nominal value |
Possible cause/Remedy |
| 1.0 |
 |
Power soft top control module
(N52)
Voltage supply
Circuits 30, 15 |
11  |
N52
X 
 |
 12
|
|
11 - 14 V |
1.1,
Circuit 31. |
| |
|
|
6 |
N52
Z
|
5
|
Ignition: ON |
11 - 14 V |
|
| 1.1 |
|
Voltage supply
Circuits 30, 15 |
 |
N52
X
|
12
|
|
11 - 14 V |
Circuit 30. |
| |
|
|
|
N52
Z
|
5
|
Ignition: ON |
11 - 14 V |
Circuit 15. |
| 2.0 |
 |
CST/RB hydraulic unit (A7/5) switching
circuit
Voltage supply |
1 |
A7/5x1
|
4
|
Disconnect
connector (A7/5x1). |
11 - 14 V |
Wiring. |
| |
|
|
5 |
A7/5x1
|
4
|
|
11 - 14 V
|
|
| [2.0] |
|
|
11 |
N52
X
|
12
|
Ignition: ON
Open front locks.
Press power soft top switch (S84) in opening or closing position. |
0 - 1 V
11 - 14 V
Hydraulic unit (A7/5m1) runs.
|
18.0,
18.0,
21.0,
2.1,
Relay (A7/5k1),
Wiring. |
| 2.1 |
|
A7/5m1 |
|
|
|
Unplug A7/5k1.
Bridge sockets 1 and 3 of A7/5k1 connector.
|
A7/5m1 runs
|
Wiring,
A7/5m1.
|
| 3.0 |
 |
Operating time exceeded |
|
|
|
Erase DTC's. |
DTC
|
Control module (N52).
|
| 4.0 |
 |
Limit switch signals illogical |
|
|
|
Check limit switch signals according
to chart ( 24).
|
|
Wiring,
Limit switch. |
| 5.0 |
 |
Soft top compartment cover "locked"
switch (A25/1s2) circuit
Voltage supply |
|
|
N52
Y
14 |
Control module (N52) in diagnostic
mode 22.
Soft top compartment cover:
locked |
0 - 1 V |
5.1, |
| |
|
|
|
|
|
unlocked
|
11 - 14 V
|
5.1, |
| 5.1 |
|
A25/1s2
Resistance |
|
|
N52
Y
14 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Soft top compartment cover:
locked |
0 - 5  |
A25/1s2,
Wiring,
If nominal value is obtained: N52.
|
| |
|
|
|
|
|
unlocked
|
>20 k
|
|
| 6.0 |
 |
Soft top compartment cover "closed"
switch (A25/1s1) circuit
Voltage supply |
|
|
N52
Y
13 |
Control module (N52) in diagnostic
mode 22.
Soft top compartment cover:
closed |
0 - 1 V |
6.1, |
| |
|
|
|
|
|
opened |
11 - 14 V |
6.1, |
| 6.1 |
|
A25/1s1
Resistance |
|
|
N52 Y
13 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Soft top compartment cover:
closed |
0 - 5 |
A25/1s1,
Wiring,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
opened |
>20 k |
|
| 7.0 |
 |
Soft top compartment cover "open"
switch (S84/5) circuit
Voltage supply |
|
|
N52 Y
15 |
Control module (N52) in diagnostic
mode 22.
Soft top compartment cover:
opened |
0 - 1 V |
7.1, |
| |
|
|
|
|
|
closed
|
11 - 14 V |
7.1, |
| 7.1 |
|
S84/5
Resistance |
|
|
N52 Y
15 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Soft top compartment cover:
opened |
0 - 5 |
S84/5,
Wiring,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
closed |
>20 k
|
|
| 8.0 |
 |
Soft top fabric bow "locked" switch
(S84/8) circuit
Voltage supply |
|
|
N52
Y
11 |
Control module (N52) in diagnostic
mode 22.
Fabric bow:
locked |
0 - 1 V |
8.1,
|
| |
|
|
|
|
|
unlocked |
11 - 14 V |
8.1. |
| 8.1 |
|
S84/8
Resistance |
|
|
N52
Y
11
|
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Fabric bow:
locked |
0 - 5
|
S84/8,
Wiring,
If nominal value is obtained: N52.
|
| |
|
|
|
|
|
unlocked |
>20 k |
|
| 9.0 |
 |
Soft top fabric bow "down" switch
(S84/7) circuit
Voltage supply |
|
|
N52
Y
10 |
Control module (N52) in diagnostic
mode 22.
Fabric bow:
lowered |
0 - 1 V |
9.1,
|
| |
|
|
|
|
|
raised |
11 - 14 V
|
9.1,
N52. |
| 9.1 |
|
S84/7
Resistance |
|
|
N52
Y
10 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Fabric bow:
owered |
0 - 5 |
S84/7,
Wiring,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
raised
|
>20 k
|
|
| 10.0 |
 |
Soft top fabric bow "raised" switch
(S84/6) circuit
Voltage supply |
|
|
N52
Y
12 |
Control module (N52) in diagnostic
mode 22.
Fabric bow:
raised |
0 - 1 V |
10.1, |
| |
|
|
|
|
|
lowered
|
11 - 14 V
|
10.1,
|
| 10.1 |
|
S84/6
Resistance |
|
|
N52
Y
12 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Fabric bow:
raised |
0 - 5 |
S84/6,
Wiring,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
lowered |
>20 k
|
|
| 11.0 |
|
Left front soft top "locked" switch
(S84/1) circuit
Voltage supply |
|
|
N52
Y
5 |
Control module (N52) in diagnostic
mode 22.
Front of soft top:
locked |
0 - 1 V |
11.1, |
| |
|
|
|
|
|
unlocked |
11 - 14 V |
11.1, |
| 11.1 |
|
S84/1
Resistance |
|
|
N52
Y
5 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Front of soft top:
locked |
0 - 5 |
S84/1,
Wiring,
If nominal value is obtained: N52.
|
| |
|
|
|
|
|
unlocked |
>20 k |
|
| 12.0 |
|
Right front soft top "locked"
switch (S84/2) circuit
Voltage supply |
|
|
N52
Y
6 |
Control module (N52) in diagnostic
mode 22.
Front of soft top:
locked |
0 - 1 V |
12.1, |
| |
|
|
|
|
|
unlocked |
11 - 14 V
|
12.1, |
| 12.1 |
|
S84/2
Resistance |
|
|
N52
Y
6 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Front of soft top:
locked |
0 - 5 |
S84/2,
Wiring,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
unlocked
|
>20 k
|
|
| 13.0 |
|
Soft top "open" switch (soft top
in storage compartment) (S84/3) circuit
Voltage supply |
|
|
N52
Y
9 |
Control module in diagnostic mode
22
Soft top:
opened |
0 - 1 V |
13.1, |
| |
|
|
|
|
|
closed
|
11 - 14 V
|
13.1.
|
| 13.1 |
|
S84/3
Resistance |
|
|
N52
Y
9 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52)
Soft top:
opened |
0 - 5 |
S84/3,
Wiring,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
closed |
>20 k
|
|
| 14.0 |
|
Soft top "overhead" switch (S84/4)
circuit
Voltage supply |
|
|
N52
Y
7 |
Control module (N52) in diagnostic
mode 22.
Soft top:
closed |
0 - 1 V |
14.1, |
| |
|
|
|
|
|
opened
|
11 - 14 V
|
14.1. |
| 14.1 |
|
S84/4
Resistance |
|
|
N52
Y
7
|
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Soft top:
closed |
0 - 5 |
S84/4,
Wiring,
If nominal value is obtained: N52.
|
| |
|
|
|
|
|
opened
|
>20 k
|
|
| 15.0 |
|
RB "retracted" switch (S83/5)
circuit
Voltage supply |
|
|
N52
Y
16
|
Control module (N52) in diagnostic
mode 22.
Roll bar:
retracted |
0 - 1 V |
15.1, |
| |
|
|
|
|
|
extended |
11 - 14 V
|
15.1. |
| 15.1 |
|
S83/5
Resistance |
|
|
N52
Y
16 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Roll bar:
retracted |
0 - 5 |
S83/5,
Wiring,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
extended
|
>20 k
|
|
| 16.0 |
|
RB "extended" switch (S83/6) circuit
Voltage supply |
|
|
N52
Y
17 |
Control module (N52) in diagnostic
mode 22.
Roll bar:
extended |
0 - 1 V |
16.1, |
| |
|
|
|
|
|
retracted
|
11 - 14 V
|
16.1.
|
| 16.1 |
|
S83/6
Resistance |
|
|
N52
Y
17 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Roll bar:
extended |
0 - 5 |
S83/6,
Wiring,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
retracted |
>20 k
|
|
| 17.0 |
|
Roll bar
Crash deployment |
|
|
|
Ignition: OFF, ON
Press RB switch (S83) to extend position,
(approx. 10 sec.). |
|
Crash deployment occurred. |
| |
|
|
|
|
|
Retract roll bar using RB
switch (S83).
|
Roll bar is retracted.
|
|
| 18.0 |
|
Power soft top switch (S84) circuit
Voltage supply |
|
|
N52
Y
1 |
Ignition: ON
Press switch S84 to closing position. |
11 - 14 V
0 - 1 V
|
18.1.
|
| |
|
|
|
|
N52
Y
2 |
Ignition: ON
Press switch S84 to opening position.
|
11 - 14 V
0 - 1 V
|
|
| 18.1 |
|
S84
Resistance |
|
|
N52
Y
1 |
Disconnect test cable (Y) from control
module (N52)
Switch S84 in: |
|
Wiring,
S84,
If nominal value is obtained: N52. |
| |
|
|
|
|
N52
Y
2 |
rest position
closing position
rest position
opening position
|
>20 k
0 - 5
>20 k
0 - 5
|
|
| 19.0 |
|
Vehicle speed signal |
|
|
N52
Y
35 |
Drive vehicle at approx. 25 mph (40
km/h) |
|
|
| 20.0 |
|
RB switch (S83) circuit and RB
switch (rear center console) (S83/4) circuit
Voltage supply |
|
|
N52
Y
5 |
Ignition: ON
Rear power window safety switch (S21/7) in unlocked position.
S83 and S83/4 in:
rest position |
11 - 14 V |
20.1,
20.2. |
| [20.0] |
|
|
|
|
|
Push switch S83 to extend roll
bar.
Push switch S83/4 to extend roll bar. |
0 - 1 V
0 - 1 V
|
20.1,
20.2,
22.0,
|
| |
|
|
|
|
N52
X
4 |
S83 and S83/4 in:
rest position
Push switch S83 to retract roll bar.
Push switch S83/4 to retract roll bar.
|
11 - 14 V
0 - 1 V
0 - 1 V
|
20.1,
20.2,
20.1,
20.2,
22.0.
|
| 20.1 |
|
S83
Resistance |
|
|
N52
X
3
|
Ignition: OFF
Disconnect test cable (Y) from control module.
S83 and S83/4 in:
rest position
Push switch S83 to extend roll bar. |
>20 k
0 - 5 |
Wiring,
S83,
S83/4.
|
| [20.1] |
|
|
|
|
N52
Y
4 |
S83 and S83/4 in:
rest position
Push switch S83 to retract roll bar.
|
>20 k
0 - 5 |
Wiring,
S83,
S83/4,
If nominal value is obtained: control module (N52). |
| 20.2 |
|
S83/4
Resistance |
|
|
N52
Y
3 |
Ignition: OFF
Disconnect test cable (Y) from N52.
S83 and S83/4 in:
rest position |
>20 k |
Wiring,
S83,
S83/4,
If nominal value is obtained: N52.
|
| |
|
|
|
|
|
Push switch S83/4 to extend
roll bar. |
0 - 5 |
|
| |
|
|
|
|
N52
Y
4 |
S83 and S83/4 in:
rest position |
>20 k |
|
| |
|
|
|
|
|
Push switch S83/4 to retract
roll bar. |
0 - 5
|
|
| 21.0 |
|
Rod side valve (Y57y10) circuit
Voltage supply |
11 |
N52
X
|
10
|
Ignition: ON
Operate roll bar using
switch (S83) to: |
0 - 1 V
|
S83,
Control module (N52), |
| |
|
|
|
|
|
retract
extend
|
11 - 14 V
11 - 14 V
|
21.1,
21.1. |
| 21.1 |
|
Y57y10
Resistance |
11 |
N52
X
 |
10
|
Disconnect test cable (X) from control
module (N52). |
10 - 20 |
Wiring,
Y57y10,
Relay (A7/5k1),
If nominal value is obtained: N52.
|
| 22.0 |
|
Rear power window safety switch
(S21/7) circuit
Voltage supply |
|
|
N52
Y
3 |
Ignition: ON
Hold switch (S83/4) in roll bar extend position.
Position of S21/7: |
|
|
| |
|
|
|
|
|
locked
unlocked |
9 - 14 V
0 - 1 V |
Wiring,
22.1,
Wiring,
22.1,
20.0. |
| 22.1 |
|
S21/7
Resistance |
|
|
N52
X
3 |
Ignition: OFF
Disconnect test cable (Y) from control module (N52).
Hold switch S83/4 in roll bar "extend" position.
Position of S21/7: |
|
Wiring,
S21/7,
If nominal value is obtained: N52. |
| |
|
|
|
|
|
unlocked
locked
|
0 - 5
>20 k |
|
| 23.0 |
|
Piston side valve (Y57y11) circuit
Voltage supply |
6 |
N52
Z
|
2
|
Ignition: ON
Operate roll bar using switch (S83) to: |
|
|
| |
|
|
|
|
|
extend
retract
|
11 - 14 V
0 - 1 V |
23.1,
Control module (N52).
|
| 23.1 |
|
Y57y11
Resistance |
6 |
N52
Z
|
2
|
Disconnect test cable (Z) from control
module (N52). |
5 - 15 |
Wiring,
Y57y11,
If nominal value is obtained: N52. |
| 24.0 |
|
Hydraulic unit main valve (A7/5y1)
1) circuit
Voltage supply |
6 |
N52
Z
|
1
|
Ignition: ON
Open front locks
Move soft top switch to closing or opening position roll bar
retracted. |
0 - 1 V
10 - 14 V
|
Control module (N52).
24.1. |
| 24.1 |
|
A7/5y1
Resistance |
6 |
N52
Z
|
1
|
Disconnect test cable (Z) from control
module (N52).
|
5 - 15
|
Wiring,
A7/5y1,
If nominal value is obtained: N52. |
| 25.0 |
|
Soft top compartment lock valve
(Y56y3) circuit
Voltage supply |
11 |
N52
X
|
9
|
Ignition: ON
Operate soft top compartment cover using switch (S84) to: |
|
|
| |
|
|
|
|
|
unlock
lock
|
10 - 14 V
0 - 1 V
|
25.1.
Control module (N52).
|
| 25.1 |
|
Y56y3
Resistance |
11 |
N52
X
|
9
|
Disconnect test cable (X) from control
module (N52). |
5 - 15 |
Wiring,
Y56y3,
If nominal value is obtained: Y56y3 is physically sticking or control module
(N52). |
| 26.0 |
|
Fabric bow lock valve (Y56y4),
Soft top compartment cover "closed" circuit |
11 |
N52
X
|
8
|
Ignition: ON
Operate fabric bow using power soft top switch (S84) to: |
|
|
| |
|
Voltage supply |
|
|
|
unlock
lock |
10 - 14 V
0 - 1 V |
26.1,
Control module (N52). |
| 26.1 |
|
Y56y4
Resistance |
11 |
N52
X
|
8
|
Disconnect test cable (X) from control
module (N52). |
5 - 15 |
Wiring,
Y56y4,
If nominal value is obtained: Y56y3 is physically sticking or control module
(N52). |
| 27.0 |
|
Soft top compartment cover drive
valve (Y56y5), Compartment cover "open" circuit
Voltage supply |
11 |
N52
X
|
5
|
Ignition: ON
Operate soft top compartment cover using power soft top switch (S84) to: |
|
|
| |
|
|
|
|
|
raise
lower |
10 - 14 V
0 - 1 V |
27.1,
Control module (N52). |
| 27.1 |
|
Y56y5
Resistance |
11 |
N52
X
|
5
|
Disconnect test cable (X) from control
module (N52). |
5 - 15 |
Wiring,
Y56y5,
If nominal value is obtained: N52. |
| 28.0 |
|
Soft top "open" valve (Y55y6)
circuit
Voltage supply |
11 |
N52
X
|
1
|
Ignition: ON
Operate soft top using power soft top switch (S84): |
|
|
| |
|
|
|
|
|
opening
closing |
10 - 14 V
0 - 1 V |
28.1,
Control module (N52). |
| 28.1 |
|
Y55y6
Resistance |
11 |
N52
X
|
1
|
Disconnect test cable (X) from control
module (N52). |
5 - 15 |
Wiring,
Y55y6,
If nominal value is obtained: N52. |
| 29.0 |
|
Soft top "close" valve (Y55y7)
circuit
Voltage supply |
11 |
N52
X
|
2
|
Ignition: ON
Operate soft top using power soft top switch (S84): |
|
|
| |
|
|
|
|
|
closing
opening |
10 - 14 V
0 - 1 V
|
29.1,
Control module (N52). |
| 29.1 |
|
Y55y7
Resistance |
11 |
N52
X
|
2
|
Disconnect test cable (X) from control
module (N52). |
5 - 15 |
Wiring,
Y55y7,
If nominal value is obtained: N52. |
| 30.0 |
|
Fabric bow "raise" valve (Y55y8)
circuit
Voltage supply |
11 |
N52
X
|
3
|
Ignition: ON
Operate fabric bow using power soft top switch (S84) to: |
|
|
| |
|
|
|
|
|
raise
lower |
10 - 14 V
0 - 1 V |
30.1,
Control module (N52). |
| 30.1 |
|
Y55y8
Resistance |
11 |
N52
X
|
3
|
Disconnect test cable (X) from control
module (N52). |
5 - 15 |
Wiring,
Y55y8,
If nominal value is obtained: N52.
|
| 31.0 |
|
Fabric bow "lower" valve (Y55y9)
circuit
Voltage supply |
11 |
N52
X
|
4
|
Ignition: ON
Operate fabric bow using power soft top switch (S84) to: |
|
|
| |
|
|
|
|
|
lower
raise |
10 - 14 V
0 - 1 V
|
31.1,
Control module (N52). |
| 31.1 |
|
Y55y9
Resistance |
11 |
N52
X
|
4
|
Disconnect test cable (X) from control
module (N52). |
5 - 15 |
Wiring,
Y55y9,
If nominal value is obtained: N52. |
| 32.0 |
|
Combination relay (heated rear
window, N10)
Voltage supply |
6 |
N52
Z
|
12
|
Soft top opened. |
Multimeter display blinks (approx.
2 Hz).
|
Wiring,
Soft top "overhead" switch (S84/4),
Control module (N52). |
| 33.0 |
|
CF control module (N57)
Voltage supply |
27 |
N52
Y
|
28
|
Ignition: ON
Tap power soft top switch (S84) twice and hold: |
0 - 1 V
|
Wiring,
Control module (N52),
CF control module (N57). |
| |
|
|
|
|
|
in opening position
in closing position |
-9 to -14V
9 - 14 V |
|
| 34.0 |
|
Ceiling control panel warning
buzzer |
|
N52
Y
 |
33
|
Ignition: ON
|
Tone sounds.
|
Wiring,
Dome lamp (with shut off delay) (E15). |
| 35.0 |
|
Indicator lamp power soft top
switch (S84)
Voltage supply |
4 |
S84
|
2
|
Ignition: ON |
11 - 14 V
|
Wiring. |
| 36.0 |
|
Signal to power soft top switch
indicator lamp (S84) |
|
|
|
Soft top completely closed or opened.
Ignition: ON |
Indicator lamp should light for approx.
1 s. |
Wiring,
S84,
Control module (N52). |
| 37.0 |
|
RB control module (N53) |
|
|
|
Ignition: ON |
> 2.4 V
> 2.4 V |
Wiring,
Malfunction in roll bar system (see DM, Body and Accessories, Vol. 3,
section 19.1),
Control module (N53). |
Printable
version
