Test step
|
DTC |
Test scope
|
Test connection
|
Test condition
|
Nominal value
|
Possible cause/Remedy
|
| 1.0 |
 |
SPS control module (N49/1)
Voltage supply
Circuit 87 SA
|
10  |
N49/1
|
 31
|
Ignition: ON
|
11 - 14V |
 1.1,
Ground, electronics output ground (W15) or ground (right rear seat) (W17) with N49/1 under rear seat.
|
| 1.1 |
|
Voltage supply from Base module (N16/1)
|
W16/1 (Fig. 3) |
|
N49/1
31 |
Ignition: ON
Ignition: OFF |
11 - 14V
< 1 V
|
Fuse (F3) at base module BM, N16/1),
Volume 1, 1.1 or 1.2  23, respectively,
Wiring.
|
| 2.0 |
|
Diagnostic output |
10 |
N49/1
|
26
|
Ignition: ON
|
10 - 14V |
Wiring,
SPS control module (N49/1).
|
3.0
(Models 140.0 [up to 05/93], and 140.1 [diesel up to 01/93])
|
|
Circuit 61 voltage |
10 |
N49/1
|
6
|
Ignition: ON
Engine: Start
|
< 1 V
11 - 14V |
Wiring,
Generator (G2).
|
4.0
|
 |
Speed-sensitive power steering P-valve (Y10)
Voltage supply |
19 |
N49/1
|
18
|
Engine: Start
|
5 - 7 V~
|
4.1,
SPS control module (N49/1).
|
| 4.1 |
|
Coil resistance |
19 |
N49/1
|
18
|
Ignition: OFF
Pull SPS control module (N49/1) out of contact box.
|
3 - 5  |
Wiring,
SPS P-valve (Y10).
|
5.0
(Models 140.0 up to 05/93, and 140.1 up to 01/93)
|
|
Transmission inductive speed sensor (L2) |
8 |
N49/1
|
9
|
Ignition: OFF
Pull SPS control module (N49/1) out of contact box.
|
1.6 - 2.1 k
|
Wiring,
L2,
SPS control module (N49/1).
|
6.0
(Model 140.0 up to 05/93 with ASR only)
|
 |
Vehicle speed sensor output
Right rear from ABS/ASR control module (N30/1) |
10 |
N49/1
|
7
|
Lift rear of vehicle
Ignition: ON
Turn right rear wheel approx. 1 revolution/second.
|
> 3V~
|
Wiring,
Volume 2, 5.2 23 ASR,
SPS control module (N49/1).
|
7.0
|
|
Models 140.0 up to 05/93, 140.1 up to 01/93
Rear axle vehicle speed sensor output
ABS center from ABS control module (N30) or ABS/ASR left rear from ABS/ASR control module (N30/1)
Model 140.0 LH-SFI starting 06/93, HFM-SFI, 140.1 starting 02/93
Left front axle vehicle speed sensor output
from ABS control module (N30) or ABS/ASR control module (N30/1)
|
10
10 |
|
30
30
|
Lift rear of vehicle.
Ignition: ON
Turn right rear wheel approx. 1 revolution/second.
Lift rear of vehicle.
Ignition: ON
Turn right rear wheel approx. 1 revolution/second. |
> 3V~
> 3V~
|
Wiring,
Volume 2, 5.2 23 ASR,
Volume 2, 6.2 23 ABS,
SPS control module (N49/1).
|
8.0
(Model 140.0 LH-SFI starting 06/93, HFM-SFI, 140.1 starting 02/93)
|
|
Vehicle speed sensor status
from ABS control module (N30) or ABS/ASR control module (N30/1) |
10 |
N49/1
|
6
|
Ignition: ON |
> 3V~
|
Wiring,
Volume 2, 5.2 23 ASR,
Volume 2, 6.2 23 ABS,
SPS control module (N49/1).
|
Printable version
