 |
 |
Test scope |
Test connection |
Test condition |
Nominal value |
Possible cause/Remedy |
| 1.0 |
|
IRCL control module (N54)
circuit 30, circuit 15
Voltage supply
|
27 
|
N54
|
 9
|
Ignition: OFF
|
11 - 14 V
|
1.1,
Circuit 31.
|
| |
|
|
27 |
N54
|
14
|
Ignition: OFF
Ignition: ON
|
< 1 V
11 - 14 V |
1.1,
Circuit 31. |
| 1.1 |
|
Circuit 30
|
|
|
N54
9
|
Ignition: OFF
|
11 - 14 V
|
Circuit 30.
|
| |
|
Circuit 15 |
|
|
N54
14
|
Ignition: OFF
Ignition: ON |
< 1 V
11 - 14 V
|
Circuit 15. |
| 2.0 |
|
Vehicles up to11/93 only
Left front door
actuator (S47)
Resistance
|
27
|
N54
|
6
|
Disconnect IRCL control module
(N54) from .
Disconnect ATA control module (N26).
Central locking:
Locked manually
with key
Unlocked manually
with key
|
< 5 
> 20 k |
Wiring,
S47.
Wiring,
S47.
|
| 3.0 |
|
Sedans up to11/93 only
Left rear rotary tumbler
microswitch (S87/2)
Resistance
|
27
|
N54
|
15
|
Disconnect N54 from .
Rest position
(Left rear door closed)
Operate left rear catch by opening door.
|
>20 k
<5 |
Wiring,
S87/2.
Wiring,
S87/2.
|
| 4.0 |
|
Sedans up to 11/93 only
Right rear door rotary tumbler microswitch (S87/3)
Resistance
|
27
|
N54
|
7
|
Disconnect N54 from .
Rest position
(Right rear door closed)
Operate right rear tumbler by opening door.
|
> 20 k
< 5
|
Wiring,
S87/3.
Wiring,
S87/3.
|
| 5.0 |
|
Vehicles up to 11/93 only
Right front door rotary tumbler microswitch (S87/6)
Resistance
|
27
|
N54
|
17
|
Disconnect N54 from .
Rest position
(Right front door closed)
Operate right front catch by opening door.
|
>20 k
<5 |
Wiring,
S87/6.
Wiring,
S87/6.
|
| 6.0 |
 |
Vehicles up to 11/93 only
Ignition/starter
switch (S2/1)
Warning buzzer contact
|
16
|
N54
|
9
|
Disconnect N54 from .
Remove key from ignition.
Ignition key in position "1".
|
11 - 14 V
< 1 V
|
Wiring,
3.1 PSE 
23 4.0, 5.0.
Wiring,
3.1 PSE
23 4.0, 5.0.
|
| 7.0 |
|
Vehicles up to 11/93 only
Rotary tumbler/trunk lid microswitch (S88/1)
Resistance
|
26
|
N54
|
9
|
Disconnect N54 from .
Close tumbler by hand.
Open trunk lid tumbler. |
< 1 V
11 - 14 V |
Wiring,
3.1 PSE/RTG
23 1.0.
Wiring,
3.1 PSE/RTG
23 1.0.
3.1 PSE/CL
23 8.0.
Closing assist supply
pump (M14/3).
|
| 8.0 |
 |
IRCL control module (N54)
Left front door lock
switch (S86/1)
Voltage supply
|
27
|
N54
|
11
|
All doors closed and locked manually with key. |
11 - 14 V
|
Wiring,
3.1 PSE/CL
23 4.0.
(on vehicles up to 11/93).
N54. |
| |
|
|
|
|
|
Unlock vehicle via
left front door with IR transmitter and hold button. |
<1 V
Green indicator lamp flashes.
|
Wiring,
9.0 to 12.0,
N54. |
| |
|
|
27
|
N54
|
23
|
All doors closed and unlocked manually with key. |
11 - 14 V
|
Wiring,
3.1 PSE/CL
23 4.0.
(on vehicles up to 11/93).
N54.
|
| |
|
|
|
|
|
Lock vehicle via left
front door with IR transmitter and hold button. |
<1 V
Red indicator lamp flashes.
|
Wiring,
9.0 - 12.0,
N54. |
| 9.0 |
|
Left front door IR
receiver (A26/1)
Voltage supply
|
13
|
N54
|
12
|
|
11 - 14 V |
Wiring,
9.1,
N54. |
| 9.1 |
|
A26/1
Voltage supply
|
2
|
A26/1
|
3
|
Remove A26/1. |
11 - 14 V |
Wiring,
N54.
|
| 10.0 |
|
Left front door IR
receiver (A26/1)
Infrared signal control circuit |
27
|
N54
|
18
|
Lock vehicle using IR transmitter
at left front door and keep button depressed.
After completion of the locking process, read value.
Afterwards, release button and read second value.
|
Difference of values between
button depressed and button released approx.
+0.3 - +0.5 V. |
Wiring,
A26/1. |
| 11.0 |
 |
Left front door IR
receiver (A26/1)
Red indicator lamp
|
|
|
|
Disconnect N54 from .
No bridge connected.
|
Red indicator lamp off.
|
Wiring,
A26/1,
N54.
|
| |
|
|
27
3 |
|
13
9
|
Both bridges connected. |
Red indicator lamp lights. |
Wiring,
A26/1. |
| 12.0 |
  |
Left front door IR
receiver (A26/1)
Green indicator lamp
|
|
|
|
Disconnect N54 from .
No bridge connected.
|
Green indicator lamp off.
|
Wiring,
A26/1,
N54.
|
| |
|
|
27
10 |
|
13
9
|
Both bridges connected. |
Green indicator lamp lights. |
Wiring,
A26/1. |
| 13.0 |
|
IRCL control module (N54)
Right front door lock
switch (S87/1)
Voltage supply
|
27
|
N54
|
11
|
All doors closed and locked manually with key. |
11 - 14 V
|
Wiring,
3.1 PSE/CL
23 2.0.
(vehicles up to 11/93 only).
N54. |
| |
|
|
|
|
|
Unlock vehicle via
right front door with IR transmitter and hold button. |
<1 V
Green indicator lamp flashes.
|
Wiring,
14.0 - 17.0,
N54. |
| |
|
|
27
|
N54
|
23
|
All doors closed and unlocked manually with key. |
11 - 14 V
|
Wiring,
3.1 PSE/CL
23 2.0
(vehicles up to 11/93 only).
N54.
|
| |
|
|
|
|
|
Lock vehicle via right
front door with IR transmitter and hold button. |
<1 V
Red indicator lamp flashes.
|
Wiring,
14.0 - 17.0,
N54. |
| 14.0 |
|
Right front door IR
receiver (A26/2)
Voltage supply
|
13
|
N54
|
22
|
|
11 - 14 V |
Wiring,
14.1,
N54. |
| 14.1 |
|
A26/2
Voltage supply
|
2
|
A26/2
|
3
|
Remove A26/2. |
11 - 14 V |
Wiring,
N54.
|
| 15.0 |
|
Right front door IR
receiver (A26/2)
Infrared signal control circuit |
27
|
N54
|
8
|
Lock vehicle using IR transmitter
at right front door and keep button depressed.
After completion of the locking process, read value.
Afterwards, release button and read second value.
|
Difference of values between
button depressed and button released approx.
+0.3 - +0.5 V. |
Wiring,
A26/2. |
| 16.0 |
|
Right front door IR
receiver (A26/2)
Red indicator lamp
|
|
|
|
Disconnect N54 from .
No bridge connected.
|
Red indicator lamp off.
|
Wiring,
A26/2,
N54.
|
| |
|
|
27
1 |
|
13
9
|
Both bridges connected. |
Red indicator lamp lights. |
Wiring,
A26/2. |
| 17.0 |
|
Right front door IR
receiver (A26/2)
Green indicator lamp
|
|
|
|
Disconnect N54 from .
No bridge connected.
|
Green indicator lamp off.
|
Wiring,
A26/2,
N54.
|
| |
|
|
27
2 |
|
13
9
|
Both bridges connected. |
Green indicator lamp lights. |
Wiring,
A26/2. |
| 18.0 |
|
IRCL control module (N54)
Trunk lid lock
switch (S88/2)
Voltage supply
|
27
|
N54
|
11
|
All doors closed and locked manually with key. |
11 - 14 V
|
Wiring,
3.1 PSE/CL
23 3.0
(vehicles up to 11/93 only).
N54. |
| |
|
|
|
|
|
Unlock vehicle via
trunk lid with IR transmitter and hold button. |
<1 V
Green indicator lamp flashes.
|
Wiring,
19.0 - 22.0,
N54. |
| |
|
|
27
|
N54
|
23
|
All doors closed and unlocked manually with key. |
11 - 14 V
|
Wiring,
3.1 PSE/CL
23 3.0
(vehicles up to 11/93 only).
N54.
|
| |
|
|
|
|
|
Lock vehicle via trunk
lid with IR transmitter and hold button. |
<1 V
Red indicator lamp flashes.
|
Wiring,
19.0 - 22.0,
N54. |
| 19.0 |
|
Trunk lid IR
receiver (A26/3)
Voltage supply
|
24
|
N54
|
5
|
|
11 - 14 V |
Wiring,
19.1,
N54. |
| 19.1 |
|
A26/3
Voltage supply
|
2
|
A26/3
|
3
|
Remove A26/3. |
11 - 14 V |
Wiring,
N54.
|
| 20.0 |
|
Trunk lid IR
receiver (A26/3)
Infrared signal control circuit |
27
|
N54
|
4
|
Lock vehicle using IR transmitter
at trunk and keep button depressed.
After completion of the locking process, read value.
Afterwards, release button and read second value.
|
Difference of values between
button depressed and button released approx.
+0.3 - +0.5 V. |
Wiring,
A26/3. |
| 21.0 |
|
Trunk lid IR
receiver (A26/3)
Red indicator lamp
|
|
|
|
Disconnect N54 from .
No bridge connected.
|
Red indicator lamp off.
|
Wiring,
A26/3,
N54.
|
| |
|
|
27
21 |
|
24
9
|
Both bridges connected. |
Red indicator lamp lights. |
Wiring,
A26/2. |
| 22.0 |
|
Trunk lid IR
receiver (A26/3)
Green indicator lamp
|
|
|
|
Disconnect N54 from .
No bridge connected.
|
Green indicator lamp off.
|
Wiring,
A26/3,
N54.
|
| |
|
|
27
2 |
N54
 |
13
9
|
Both bridges connected. |
Green indicator lamp lights. |
Wiring,
A26/2. |
| 23.0 |
 |
Vehicles as of 12/93
only
Immobilization output
|
25 |
N54
|
9
|
Unlock vehicle by pointing
IR transmitter toward one of the three IR receivers.
Open driver's window.
Lock vehicle by pointing IR transmitter toward one of the three
IR receivers.
Ignition: ON
|
11 - 14 V
< 1 V |
Wiring,
1.0, 8.0 - 22.0,
N54. |
| 24.0 |
|
Diagnosis output |
27 |
N54
|
19
|
|
10 - 14 V |
Wiring,
N54. |
Printable
version
