|
|
Test scope |
Test connection
|
Test condition |
Nominal value |
Possible cause/remedy |
1.0 |
P 0 5 6 0
|
Engine control
module (N3/10)
Voltage supply
circuit 30
|
3
(3a) |
N3/10
|
12
(4b)
|
Ignition: ON |
11 - 14 V |
1.1 - 1.2 |
1.1 |
|
Ground wire |
3
(3a)
7
(7A)
112
(8F)
119
(15F) |
|
X11/4
2
X11/4
2
X11/4
2
X11/4
2
|
Ignition: ON |
11 - 14 V |
Wiring,
Model 170 and 202:
Output ground (W16/6),
Right component compartment.
|
1.2 |
|
Voltage supply
circuit 30 |
X11/4
1 |
N3/10
|
12
(4b)
|
Ignition: ON |
11 - 14 V |
Wiring,
Model 170:
Relay module (K40),
Model 202:
Passenger-side fuse and relay module box (K40/4).
|
2.0 |
P 0 5 6 0
|
Engine control
module (N3/10)
Voltage supply
circuit 87
|
8
(8a) |
N3/10
|
2
(2a)
|
Ignition: ON |
11 - 14 V |
2.1 - 2.2 |
2.1 |
|
Electronics ground |
8
(8a)
|
N3/10
|
X11/4
2
|
Ignition: ON |
11 - 14 V |
Wiring,
Model 170 and 202:
Output ground (W16/6),
Right component compartment.
|
2.2 |
|
Voltage supply
circuit 87 |
X11/4
1 |
N3/10
|
2
(2a)
|
Ignition: ON
Ignition: OFF |
11 - 14 V
< 1 V |
Wiring,
Model 170:
Relay module (K40).
Model 202:
Passenger-side fuse and relay module box (K40/4).
|
3.0 |
|
Ignition coil (T1/1)
Cylinder 1 and 4
Voltage supply
|
3
(3a)
|
N3/10
|
124
(20F)
|
Ignition: ON
Starter: Crank |
11 - 14 V
> 10 V |
Wiring,
Fuses:
Model 170: fuse 11
Model 202: fuse and relay module box fuse 6
Ignition coil (T1/1)
|
4.0 |
|
Ignition coil (T1/2)
Cylinder 2 and 3
Voltage supply
|
3
(3a)
|
N3/10
|
117
(13f)
|
Ignition: ON
Starter: Crank |
11 - 14 V
> 10 V |
Wiring,
Fuses:
Model 170: fuse 11
Model 202: fuse and relay module box fuse 6
Ignition coil (T1/2)
|
5.0 |
P 0 3 3 5
|
CKP sensor (L5)
Signal
Voltage |
93
(37e)
93
(37e) |
|
94
(38e)
94
(38e)
|
Test with oscilloscope.
Starter: Crank
Engine: at Idle
Test with multimeter only
if oscilloscope is
unavailable.
Starter: Crank
Engine: at Idle
|
Signal, see
Figure 1 and 3.
> 2.5 V~
> 5 V~
Voltage increases with increasing rpm.
|
5.1 ,
Teeth on starter ring gear. |
5.1 |
|
Resistance of CKP sensor (L5) |
93
(37e) |
N3/10
|
94
(38e)
|
Ignition: OFF
Unplug connector E on
engine control
module (N3/10).
|
700 - 1400
(at 20°C):
600 - 1200 |
Wiring,
L5 |
6.0 |
P 0 3 4 1
|
Camshaft Hall-effect sensor (B6/1)
Hall-effect signal |
95
(39e)
96
(40e) |
|
96
(40e)
2
(2a)
|
Test with oscilloscope.
Engine: at Idle
Test with multimeter only
if oscilloscope is
unavailable.
Engine: at Idle |
Signal: see
Figure 2 and 3
1.2 - 1.7 V
Value changes. |
6.1 ,
Wiring
B6/1 |
6.1 |
|
Voltage supply to camshaft Hall-effect sensor (B6/1) |
1
|
B6/1
|
3
|
Ignition: ON
Disconnect connector from Hall-effect sensor (B6/1) and test directly on sockets 1 and 3 of connector.
|
11 - 14 V |
Wiring. |
7.0 |
P 0 3 0 0
P 0 3 0 1
P 0 3 0 4 |
Primary voltage
Ignition coil (T1/1),
Cylinders 1 and 4
|
124
(20F)
|
N3/10
|
2
(2a) |
Test connection
Individual primary pattern
Range 400 V
Duration 5 milliseconds
Starter: Crank
|
200 - 350 V |
7.1 |
7.1 |
|
Primary winding of T1/1 and T1/2
|
124
(20F)
|
N3/10
|
117
(13f) |
Ignition: OFF
|
0.9 - 1.6
The resistance
of a single coil
at 20°C is
approx. 0.6 .
|
Wiring
T1/1 or T1/2
|
8.0 |
P 0 3 0 0
P 0 3 0 2
P 0 3 0 3 |
Primary voltage
Ignition coil (T1/2)
Cylinders 2 and 3 |
117
(13f)
|
N3/10
|
2
(2a) |
Test connection
Individual primary pattern
Range 400 V
Duration 5 milliseconds
Starter: Crank
|
200 - 350 V |
8.1
|
8.1 |
|
Primary winding of T1/2 and T1/1
|
117
(13f)
|
N3/10
|
124
(20F) |
Ignition: OFF
|
0.9 - 1.6
The resistance
of a single coil
at 20°C is
approx. 0.6 .
|
Wiring
T1/2 or T1/1
|
9.0 |
P 0 3 0 0
P 0 3 0 1
P 0 3 0 2
P 0 3 0 3
P 0 3 0 4 |
Firing voltage
Ignition coil (T1/1) and (T1/2)
|
|
Engine analyzer
|
|
Test connection
Individual secondary pattern
Range 20 kV
Duration 5 milliseconds
Connect kV pick-ups successively to T1/1 and T1/2.
Starter: Crank
|
8 - 20 kV |
9.1 ,
Spark plugs,
N3/10 |
9.1 |
|
Secondary winding of T1/1 or T1/2 |
cir. 4a |
T1/1
T1/2
|
cir. 4b
|
Disconnect both ignition cables on T1/1 or T1/2 |
6 - 8.5 k |
T1/1 or T1/2 |