 |
 |
Test scope |
Test connection |
Test condition |
Nominal value |
Possible cause/Remedy |
| 1.0 |
|
CC/ISC control module (N4/3)
Voltage supply
Circuit 87 U |
3 
4
|
|
 51
52 |
Ignition: ON |
11 - 14 V |
1.1 ,
Wiring
Model 124, 202
Fuse from K1/2,
Overvoltage protection relay (K1/2).
Models 129, 140
Base module (N16/1),
DM, Chassis & Drivetrain, Vol. 1.
Model 210
Relay module (K40),
DM, Chassis & Drivetrain, Vol. 1.
|
| 1.1 |
|
Ground
Model 124
Main ground (W1)
Below instrument cluster
Model 202
Ground, right or left component compartment
(W16/3 or W16/4)
|
|
|
X11/4
16
X11/4
3 |
Ignition: ON
Ignition: OFF |
11 - 14 V |
Wiring,
Model 124: W1
Model 202: W16/3 or W16/4 |
| [1.1] |
|
Ground
Model 129
Module box bracket (W27)
Model 140
Right footwell (W15)
Model 210
Right footwell (W15/1)
|
|
|
X11/4
3
X11/4
3
X11/4
3
3
|
Ignition: OFF
Ignition: OFF
Ignition: OFF
|
11 - 14 V |
Model 129: W27
Model 140: W15
Model 210: W15/1 |
2.0 |
   |
CC switch (S40)
V Decelerate/Set
SP Resume
B Accelerate/Set
A Off
Control switch contact |
|
|
|
Ignition: ON
CC switch not activated
Position: DECEL/SET
Position: RESUME
Position: ACCEL/SET
CC switch not activated
Position: OFF
CC sontrol switch contact in position: DECEL/SET, ACCEL/SET, RESUME, OFF
|
< 1 V
11 - 14 V
11 - 14 V
11 - 14 V
11 - 14 V
< 1 V
11 - 14 V
|
Wiring,
CC switch (S40). |
| 3.0 |
 |
CC/ISC actuator (M16/2)
Voltage supply,
throttle valve actual value potentiometer (M16/2r1) and drive actual value potentiometer (M16/2r2)
|
41 |
N4/3
 |
40 |
Ignition: ON |
4.7 - 5.3 V
Reference value for tables I , II and III . |
Wiring,
CC/ISC actuator (M16/2),
CC/ISC control module (N4/3). |
4.0 |
|
CC/ISC actuator (M16/2)
Drive actual value potentiometer (M16/2r2) signal |
|
|
|
Ignition: OFF
Disconnect ABS control module (N30)
Connect first signal generator.
(front axle speed simulation)
U=set to 10 V
f=value from tabel IV
Connect second signal generator.
(rear axle speed simulation)
U=set to 10 V
f=value from tabel IV
Ignition: ON
Accelerator pedal position: Closed throttle position
Activate CC switch in position "Accel/Set" until a constant voltage value can be read.
|
Table I ,
column " a ".
Table I ,
column " b ". |
Wiring,
CC/ISC actuator (M216/2),
CC/ISC control module (N4/3).
Note:
Upon completion of test, erase DTC's stored in ASD control
module (N30/2),
DM, Chassis & Drivetrain, Vol. 1, sections 4.1 to 4.3
|
5.0 |
|
CC/ISC actuator (M16/2)
Throttle valve actual value potentiometer (M16/2r1) signal
|
3 |
N4/3
|
63 |
Ignition: ON
Accelerator pedal position:
Closed throttle position
Wide open throttle or
Kickdown
|
Table II
column " e "
column " f " |
Wiring,
CC/ISC actuator (M16/2),
CC/ISC control module (N4/3). |
| 6.0 |
 |
CC/ISC actuator (M16/2)
Voltage supply
Safety contact switch (M16/2s1) and CTP switch (M16/2s2)
|
3 |
N4/3
|
20 |
Ignition: ON
Accelerator pedal position:
Closed throttle position |
6 - 12 V
(value jumps)
|
Wiring,
CC/ISC actuator (M16/2). |
| 7.0 |
|
CC/ISC actuator (M16/2)
CTP switch (M16/2s2) switching point |
3 |
N4/3
|
37 |
Ignition: ON
Accelerator pedal position:
Closed throttle position
Slowly depress accelerator until switching point occurs.
|
6 - 12 V
(value jumps)
 1 V |
Wiring,
CC/ISC actuator (M16/2). |
8.0 |
|
CC/ISC actuator (M16/2)
Safety contact switch (M16/2s1) switching point
To reference the correct voltage value in Table III , columns "h" and "i", observe the reference value obtained in test
step 3.0. |
|
|
|
Ignition: OFF
Disconnect ABS control module (N30)
Connect first signal generator.
(front axle speed simulation)
U= set to 10 V
f=value from tabel IV
Connect second signal generator.
(rear axle speed simulation)
U= set to 10 V
f=value from tabel IV
Connect first multimeter |
|
Wiring,
CC/ISC actuator (M16/2).
|
[8.0] |
|
|
3 |
N4/3
|
59 |
Connect 2nd multimeter
Ignition: ON
Read voltage value from first multimeter (drive actual value potentiometer)
Read voltage value from second multimeter (safety contact switch)
Activate CC switch in position "Accel/Set" until voltage value on first multimeter does not decrease
Simultaneously read voltage value from second multimeter
|
Tabel III
column " h "
6 - 10 V (value jumps, safety contact switch closed)
Tabel III
column " i "
1 V
(safety switch open) |
1.1 ,
W15 Masse Federdom rechts,
Leitungen.
|
[8.0] |
|
|
|
|
|
Note:
If voltage does not drop, release CC switch, adjust frequency on second signal generator and repeat test procedure
|
|
|
| 9.0 |
|
CC/ISC actuator (M16/2)
Actuator motor (M16/2m1) resistance |
15
16 |
|
17
18
|
Ignition: OFF |
< 10  |
Wiring,
CC/ISC actuator (M16/2). |
| 10.0 |
|
CC/ISC actuator (M16/2)
Magnetic clutch (M16/2k1) |
56 |
N4/3
|
34
|
Ignition: ON |
7.0 - 10 V |
Wiring,
CC/ISC actuator (M16/2),
CC/ISC control module (N4/3). |
| 11.0 |
|
Starter lock-out/backup lamp switch (S16/1)
P/N recognition |
4 |
N4/3
|
26
|
Ignition: ON
Transmission range: P/N
R/D/3/2
|
0 V
11 - 14V
|
Wiring,
Starter lock-out/backup lamp
switch (S16/1),
CC/ISC control module (N4/3),
Ignition/starter switch (S2/1).
|
12.0 |
|
CC/ISC control module (N4/3)
A/C compressor signal |
4 |
N4/3
|
27
|
Engine: Start
Accelerator pedal position:
Closed throttle position
Set temperature selector wheel to MIN and blower to highest speed
|
<1 V
11 - 14 V |
Wiring,
Model 124: A/C compressor control module (N6)
Models 129, 140: Base module (N16/1)
Model 202, 210: A/C pushbutton control module (N22). |
| 13.0 |
|
CC/ISC control module (N4/3)
Engine speed signal (TN) from engine control
module (N3/4)
|
4 |
N4/3
|
7 |
Engine: Start
Accelerator pedal position:
Closed throttle position |
6 - 12 V
|
15.0 ,
Engine control module (N3/4),
Instrument cluster,
CC/ISC control module (N4/3). |
| 14.0 |
 |
Left front axle VSS
sensor (L6/1)
Speed signal
|
4 |
N4/3
 |
5
|
Raise front of vehicle.
ABS (N30) or ETS/SPS (N47-2) control module connected.
Ignition: ON
Turn left front wheel by hand
|
2 - 5 V ~ |
Wiring,
ABS control module (N30), see
DM, Chassis & Drivetrain, Vol. 2, sections 6.1 to 6.3.
ETS/SPS control module (N47-2), see DM, Chassis & Drivetrain,
Vol. 3.
|
15.0 |
|
Rear axle VSS
sensor (L6)
Speed signal (ABS) |
4 |
N4/3
|
9
|
Raise rear of vehicle.
ABS control module (N30) connected.
Ignition: ON
Turn left rear wheel by hand
|
2 - 5 V ~ |
15.1
Wiring,
ABS control module (N30), see
DM, Chassis & Drivetrain, Vol. 2, sections 6.1 to 6.3. |
| 15.1 |
|
Left rear axle VSS
sensor (L6/3)
Speed signal (ETS) |
4 |
N4/3
|
9
|
Raise rear of vehicle.
ETS/SPS control module (N47-2) connected.
Ignition: ON
Turn left rear wheel by hand
|
2 - 5 V ~ |
Wiring,
ETS/SPS control module (N47-2), see DM, Chassis & Drivetrain,
Vol. 3. |
| 16.0 |
|
Stop lamp switch (S9/1)
Signal (N.C. contact)
Signal (N.O. contact) |
4
4 |
|
24
23 |
Ignition: ON
Brake pedal not applied
Brake pedal applied
Ignition: ON
Brake pedal not applied
Brake pedal applied |
< 1 V
11 - 14 V
11 - 14 V
< 1 V
|
Wiring,
S9/1 |
17.0 |
|
CC/ISC control module (N4/3)
Fuel safety shut-off signal to engine control module (N3/4)
|
4 |
N4/3
|
42 |
Ignition: ON |
2.0 - 11 V
(value jumps). |
Wiring,
CC/ISC actuator (M16/2),
N4/3 |
| 18.0 |
|
CC/ISC control module (N4/3)
Closed throttle position recognition signal to engine control module (N3/4) |
4 |
N4/3
|
25 |
Ignition: ON
Accelerator pedal position:
Closed throttle position
Accelerator pedal applied
|
4.8 V
 5.5 V |
Wiring,
N4/3 |
| 19.0 |
 |
Serial data bus (CAN) |
45
(CAN-L) |
N4/3
 |
44
(CAN-H) |
Ignition: OFF
Disconnect CC/ISC control module (N4/3)
|
Models 124, 202, 210:
55 - 65
Models 129, 140:
115 - 125
|
Wiring,
Engine control module (N3/4), see DM, Engines, Vol. 2, section 1.1. |
| 20.0 |
|
ETS signal |
4 |
N4/3
|
6 |
Ignition: ON
Engine: at Idle
|
< 1 V
11 - 14 V |
Wiring,
ETS/SPS control module (N47-2). |
Printable version
