 |
 |
Test scope |
Test connection |
Test condition |
Nominal value |
Possible cause/Remedy |
| 1.0 |
   |
ESP/SPS control
module (N47-5)
Circuit 87
Voltage supply
|
57 
(2.23)
81
(2.47) |
|
 14
(1.14)
14
(1.14)
|
Ignition: ON |
11 - 14 V |
1.1,
1.2
|
| 1.1 |
|
Voltage supply from:
Models 129, 140
Base module (N16/1)
Model 210
Relay module (K40)
|
W15/1
|
|
N47-5
14
(1.14) |
Ignition: ON |
11 - 14 V |
Fuse (F3) on N16/1,
DM, Chassis & Drivetrain, Vol. 1, sections 1.1 >23,
Wiring. |
| 1.2 |
|
Ground wire
Model 129
Model 140
Model 210
Model 129
Model 140
Model 210 |
W27
W15/1
W16/3
W27
W15/1
W16/3
|
|
N47-5
57
(2.23)
81
(2.47)
|
Ignition: OFF |
< 1  |
Wiring,
Model 129: bracket ground (W27) (control module box/module box).
Model 140: electronics- right footwell ground (W15/1).
Model 210: output ground - left wheel housing ground (W16/3). |
| 2.0 |
|
ESP/SPS control
module (N47-5)
Circuit 30
Voltage supply |
57
(2.23)
57
(2.23) |
|
58
(2.24)
82
(2.48)
|
Ignition: OFF |
11 - 14 V |
Wiring.
|
| 3.0 |
|
Instrument cluster data bus (for vehicles without CAN connection to instrument cluster) |
57
(2.23) |
N47-5
 |
9
(1.9)
|
Ignition: ON
|
3 - 4 V
A1e6, A1e7, A1e17, A1e41, A1e42: ON.
|
Wiring,
N47-5. |
| 4.0 |
|
Diagnosis output |
57
(2.23) |
N47-5
|
13
(1.13)
|
Ignition: ON |
10 - 14 V
|
Wiring,
N47-5. |
| 5.0 |
|
Engine speed (rpm) |
|
|
|
Engine: at Idle
|
        |
DM Engines Vol. 4, section 9 |
| 6.0 |
 |
Stop lamp switch (S9/1)
N.O. contact
N.C. contact |
|
|
|
Brakes not applied.
Brakes applied.
Brakes not applied.
Brakes applied.
|
 
|
6.1,
Wiring,
S9/1.
|
| 6.1 |
|
Circuit 15
Voltage supply |
|
|
|
Brakes not applied.
Brakes applied.
|
< 
-  |
Wiring.
|
| 7.0 |
|
Parking brake switch (S12) |
|
|
|
Engine: at Idle
Apply parking brake.
Release parking brake.
|
Parking brake indicator lamp (A1e7): ON
A1e7: OFF
|
Wiring,
S12,
A1e7. |
| 8.0 |
 |
Master brake cylinder switchover valve (Y61)
(Models 129.067/076,
140 only)
|
|
|
|
Press button.
Press button. |
Y61 audibly switches over.
|
8.1,
N47-5. |
| 8.1 |
|
Internal resistance |
44
(2.10) |
N47-5
 |
43
(2.9)
|
Ignition: OFF
Disconnect control
module (N47-5). |
7 - 8 |
Wiring,
Y61. |
| 9.0 |
|
ASR/ESP charging
pump (M15) |
|
|
|
Activate M15.
Brake pressure sensor.
|
M15 audibly runs.
-     |
Wiring,
M15. |
| 10.0 |
|
ASR/ETS/ESP hydraulic unit, high-pressure/return pump (A7/3m1)
|
|
|
|
Activate A7/3m1. |
A7/3m1 audibly runs. |
Wiring,
11.0 |
| 11.0 |
|
High-pressure/return pump relay (K20/1)
Model 129, 140: K20/1
Model 210: N65k4
Voltage supply
|
57
(2.23) |
N47-5
|
47
(2.13)
|
Ignition: ON |
11 - 14 V |
Wiring,
7.1 |
| 11.1 |
|
Coil resistance |
46
(2.12) |
N47-5
|
47
(2.13)
|
Ignition: OFF
Disconnect control
module (N47-5). |
40 - 80 |
Wiring,
Models 129, 140: K20/1 (relay box).
Model 210: Pulse module (N65).
|
| 12.0 |
|
SPS P-valve (Y10)
Voltage supply |
|
|
|
Engine: at Idle
Press    key
Press key |
>  
steering is light
<
steering is heavy
|
12.1,
N47-5.
|
| 12.1 |
|
Coil resistance |
35
(2.1) |
N47-5
|
36
(2.2)
|
Ignition: OFF
Disconnect control
module (N47-5).
|
3 - 8 |
Wiring,
Y10.
|
| 13.0 |
|
Left front axle VSS
sensor (L6/1) |
|
|
|
Raise front of vehicle.
Ignition: ON
Rotate left front tire by hand (> 1 rev./sec.).
|
> 
(   ) |
13.1,
13.2
|
| 13.1 |
|
Internal resistance |
77
(2.43) |
N47-5
|
78
(2.44)
|
Ignition: OFF
Disconnect control
module (N47-5).
|
0.8 - 2.3 k |
Wiring,
L6/1.
|
| 13.2 |
|
Insulation resistance |
57
(2.23) |
N47-5
|
77
(2.43) |
Ignition: OFF
Disconnect control
module (N47-5).
|
> 20 k |
Wiring,
L6/1.
|
| 14.0 |
|
Left front axle VSS
sensor (L6/1) output |
57
(2.23) |
N47-5
 |
1
(1.1)
|
Raise front of vehicle.
Ignition: ON
Rotate left front tire by hand (> 1 rev./sec.).
|
> 3 V ~ |
Wiring,
14.1,
N47-5.
|
| 14.1 |
|
Load with control modules connected
|
57
(2.23) |
N47-5
|
1
(1.1)
|
Ignition: OFF
Disconnect control
module (N47-5).
|
> 5 k |
Wiring,
Connected control modules (N3/12, etc.),
13.0
|
| 15.0 |
|
Right front axle VSS
sensor (L6/2) |
|
|
|
Raise front of vehicle.
Ignition: ON
Rotate right front tire by hand (> 1 rev./sec.).
|
>
( ) |
15.1,
15.2
|
| 15.1 |
|
Internal resistance |
52
(2.18) |
N47-5
|
51
(2.17)
|
Ignition: OFF
Disconnect control
module (N47-5).
|
0.8 - 2.3 k |
Wiring,
L6/2.
|
| 15.2 |
|
Insulation resistance |
57
(2.23) |
N47-5
|
52
(2.18) |
Ignition: OFF
Disconnect control
module (N47-5).
|
> 20 k |
Wiring,
L6/2.
|
| 16.0 |
|
Right front axle VSS
sensor (L6/2) output |
57
(2.23) |
N47-5
|
2
(1.2)
|
Raise front of vehicle.
Ignition: ON
Rotate right front tire by hand (> 1 rev./sec.).
|
> 3 V ~ |
Wiring,
16.1,
N47-5.
|
| 16.1 |
|
Load with control modules connected
|
57
(2.23) |
N47-5
|
2
(1.2)
|
Ignition: OFF
Disconnect control
module (N47-5).
|
> 5 k |
Wiring,
Connected control modules,
15.0
|
| 17.0 |
|
Left rear axle VSS
sensor (L6/3) |
|
|
|
Raise rear of vehicle.
Ignition: ON
Rotate left rear tire by hand (> 1 rev./sec.).
|
>
( ) |
17.1,
17.2
|
| 17.1 |
|
Internal resistance |
26
(1.26) |
N47-5
|
25
(1.25)
|
Ignition: OFF
Disconnect control
module (N47-5).
|
0.6 - 1.6 k |
Wiring,
L6/3.
|
| 17.2 |
|
Insulation resistance |
57
(2.23) |
N47-5
|
26
(1.26) |
Ignition: OFF
Disconnect control
module (N47-5).
|
> 20 k |
Wiring.
|
| 18.0 |
|
Left rear axle VSS
sensor (L6/3) output |
57
(2.23)
|
N47-5
|
3
(1.3)
|
Raise rear of vehicle.
Ignition: ON
Rotate left rear tire by hand (> 1 rev./sec.).
|
> 3 V ~ |
Wiring,
18.1,
N47-5.
|
| 18.1 |
|
Load with control modules connected
|
57
(2.23)
|
N47-5
|
3
(1.3) |
Ignition: OFF
Disconnect control
module (N47-5).
|
> 5 k |
Wiring,
Connected control modules,
17.0
|
| 19.0 |
|
Right rear axle VSS
sensor (L6/4) |
|
|
|
Raise rear of vehicle.
Ignition: ON
Rotate right rear tire by hand (> 1 rev./sec.).
|
>
( ) |
19.1,
19.2
|
| 19.1 |
|
Internal resistance |
28
(1.28) |
N47-5
|
27
(1.27)
|
Ignition: OFF
Disconnect control
module (N47-5).
|
0.6 - 1.6 k |
Wiring,
L6/4.
|
| 19.2 |
|
Insulation resistance |
57
(2.23) |
N47-5
|
28
(1.28) |
Ignition: OFF
Disconnect control
module (N47-5).
|
> 20 k |
Wiring.
|
| 20.0 |
|
Right rear axle VSS
sensor (L6/4) output |
57
(2.23) |
N47-5
|
4
(1.4)
|
Raise rear of vehicle.
Ignition: ON
Rotate right rear tire by hand (> 1 rev./sec.).
|
> 3 V ~ |
20.1,
N47-5.
|
| 20.1 |
|
Load with control modules connected
|
57
(2.23) |
N47-5
|
4
(1.4)
|
Ignition: OFF
Disconnect control
module (N47-5).
|
> 5 k |
Wiring,
Connected control modules,
19.0
|
| 21.0 |
|
VSS sensor output status
Signal: Vehicle stationary |
57
(2.23) |
N47-5
|
5
(1.5)
|
Ignition: ON |
> 3 V ~ |
Wiring,
N47-5.
|
| 22.0 |
|
ASR/ETS/ESP hydraulic unit (A7/3)
Solenoid valve
voltage supply |
57
(2.23) |
N47-5
|
80
(2.46) |
Ignition: ON |
11 - 14 V |
Wiring,
N47-5. |
| 23.0 |
-
|
ASR/ETS/ESP hydraulic unit (A7/3)
Solenoid valves (A7/3y6 - A7/3y13) |
|
|
|
Raise vehicle. Activate all solenoid valves, one after the other.
and apply brakes.
and apply brakes. |
Wheels not braked.
Wheels braked. |
Wiring,
23.1 - 23.8 |
| 23.1 |
|
ASR/ETS/ESP hydraulic unit, left front axle solenoid valve (hold) (A7/3y6)
Internal resistance
|
80
(2.46) |
N47-5
|
73
(2.39) |
Ignition: OFF
Disconnect control
module (N47-5).
|
5.4 - 12.6 |
Wiring,
A7/3.
|
| 23.2 |
|
ASR/ETS/ESP hydraulic unit, left front axle solenoid valve (release) (A7/3y7)
Internal resistance
|
80
(2.46) |
N47-5
|
72
(2.38) |
Ignition: OFF
Disconnect control
module (N47-5).
|
2.8 - 6.6 |
Wiring,
A7/3.
|
| 23.3 |
|
ASR/ETS/ESP hydraulic unit, right front axle solenoid valve
(hold) (A7/3y8)
Internal resistance |
80
(2.46) |
N47-5
|
74
(2.40) |
Ignition: OFF
Disconnect control
module (N47-5).
|
5.4 - 12.6 |
Wiring,
A7/3.
|
| 23.4 |
|
ASR/ETS/ESP hydraulic unit, right front axle solenoid valve (release) (A7/3y9)
Internal resistance
|
80
(2.46) |
N47-5
|
71
(2.37) |
Ignition: OFF
Disconnect control
module (N47-5).
|
2.8 - 6.6 |
Wiring,
A7/3.
|
| 23.5 |
|
ASR/ETS/ESP hydraulic unit, left rear axle solenoid valve (hold) (A7/3y10)
Internal resistance
|
80
(2.46) |
N47-5
|
69
(2.35) |
Ignition: OFF
Disconnect control
module (N47-5).
|
5.4 - 12.6 |
Wiring,
A7/3.
|
| 23.6 |
|
ASR/ETS/ESP hydraulic unit, left rear axle solenoid valve (release) (A7/3y11)
Internal resistance
|
80
(2.46) |
N47-5
|
70
(2.36) |
Ignition: OFF
Disconnect control
module (N47-5).
|
2.8 - 6.6 |
Wiring,
A7/3.
|
| 23.7 |
 |
ASR/ETS/ESP hydraulic unit, right rear axle solenoid valve
(hold) (A7/3y12)
Internal resistance |
80
(2.46) |
N47-5
|
64
(2.30) |
Ignition: OFF
Disconnect control
module (N47-5).
|
5.4 - 12.6 |
Wiring,
A7/3.
|
| 23.8 |
|
ASR/ETS/ESP hydraulic unit, right rear axle solenoid valve
(release) (A7/3y13)
Internal resistance
|
80
(2.46) |
N47-5
|
65
(2.31) |
Ignition: OFF
Disconnect control
module (N47-5).
|
2.8 - 6.6 |
Wiring,
A7/3.
|
| 24.0 |
|
ASR/ETS/ESP hydraulic unit(A7/3)
Solenoid valves (A7/3y16 - A7/3y19) |
|
|
|
Raise vehicle. Activate all solenoid valves, one after the other.
and apply service brake.
and apply service brake. |
Wheel not braked.
Wheel braked. |
Wiring,
24.1 - 24.4 |
| 24.1 |
|
ASR/ETS/ESP hydraulic unit, front axle precharge solenoid valve (A7/3y16)
Internal resistance
|
80
(2.46) |
N47-5
|
61
(2.27) |
Ignition: OFF
Disconnect control
module (N47-5).
|
2.8 - 6.6 |
Wiring,
A7/3.
|
| 24.2 |
 |
ASR/ETS/ESP hydraulic unit, rear axle precharge solenoid valve (A7/3y17)
Internal resistance |
80
(2.46) |
N47-5
|
63
(2.29) |
Ignition: OFF
Disconnect control
module (N47-5).
|
2.8 - 6.6 |
Wiring,
A7/3.
|
| 24.3 |
|
ASR/ETS/ESP hydraulic unit, front axle switchover
valve (A7/3y18)
Internal resistance
|
80
(2.46) |
N47-5
|
60
(2.26) |
Ignition: OFF
Disconnect control
module (N47-5).
|
5.4 - 12.6 |
Wiring,
A7/3.
|
| 24.4 |
|
ASR/ETS/ESP hydraulic unit, rear axle switchover
valve (A7/3y19)
Internal resistance
|
80
(2.46) |
N47-5
|
62
(2.28) |
Ignition: OFF
Disconnect control
module (N47-5).
|
5.4 - 12.6 |
Wiring,
A7/3.
|
| 25.0 |
|
ESP Off switch (S76/6) |
|
|
|
Press and hold switch S76/6: ON
Release switch
Press and hold switch S76/6: OFF
|
-
 -
< |
Wiring,
S76/6,
N47-5. |
| 26.0 |
|
ABS lateral accelration sensor (B24/2)
Static sensor signal (off)
Dynamic sensor signal (on) |
|
|
|
Vigorously rock vehicle from side to side. |
±
>
Value changes with movement of vehicle. |
Wiring,
B24/2,
26.1
|
| 26.1 |
|
Voltage suppply to sensor |
24
(1.24) |
N47-5
|
22
(1.22)
|
Ignition: ON
|
4.75-5.25 V
|
N47-5.
|
| 27.0 |
|
ESP brake pressure
sensor (B34)
Dynamic sensor signal (on) |
|
|
|
Apply service brake.
|
 - 
Value increase when service brake is applied.
|
27.1,
B34. |
| 27.1 |
|
Voltage supply
|
48
(2.14) |
N47-5
|
50
(2.16)
|
Ignition: ON
|
4.75-5.25 V |
N47-5.
|
| 28.0 |
|
ESP yaw rate
sensor (N64)
Static sensor signal (off)
Dynamic sensor signal (on) |
|
|
|
Vigorously rock vehicle from side to side. |
° - °
Value change
> ° |
28.1,
Wiring,
N64.
|
| 28.1 |
|
Voltage suppply |
17
(1.17) |
N47-5
|
18
(1.18)
|
Ignition: ON
|
11 - 14 V
|
N47-5.
|
| 29.0 |
|
Steering angle
sensor (N49) |
|
|
|
Engine: at Idle
Steering wheel in center position.
Slowly turn steering wheel to left stop.
Slowly turn steering wheel to right stop.
|
°
Value continuously changes.
|
Wiring,
N49 not initialized,
29.1,
N47-5. |
| 29.1 |
|
Circuit 30
Voltage supply
|
2 |
N49x1
|
4
|
Ignition: OFF
Disconnect connector N49x1.
|
11 - 14 V |
Wiring. |
| 29.2 |
|
Circuit 87
Voltage supply
|
2 |
N49x1
|
3 |
Ignition: ON
|
11 - 14 V |
Wiring. |
| 30.0 |
|
CAN data bus |
|
|
|
Engine: at Idle |
Idle speed |
Data bus,
30.1,
30.2
|
| 30.1 |
|
Engine 119
CAN element in engine control module
(ME-SFI, N3/10)
Resistance
Engine 120
CAN element in left or right engine control module (ME-SFI, N3/11 or N3/12)
Resistance
|
60
60
|
N3/10
N3/11 or
N3/12
|
61
61
|
Disconnect control module (N3/10) and test directly on control module using an ohmmeter.
Disconnect control module (N3/11 or N3/12) and test directly on control module using an ohmmeter.
|
235 - 245
235 - 245
|
N3/10,
DM, Engines, Vol. 4, sections 9.5 or 9.6 >23.
N3/11 or N3/12,
DM, Engines, Vol. 4, sections 9.5 or 9.6 >23.
|
| 30.2 |
|
CAN element in RCL control module (N54)
Resistance
|
L
|
N54
|
H
|
Disconnect 2-pole connector on control module (N54) and test directly on control module using an ohmmeter. |
115 - 125 |
N54.
|
Printable version
