Test readings, control module connections
| Test readings, control module connections |
| Remember: |
| • |
Note the test condition, and use common sense when assessing the test result.
|
|
| • |
The specified test readings are with the ignition ON, unless otherwise stated.
|
|
| • |
Check these points:
|
|
| - |
First check that the control module is supplied with current and is grounded.
|
| - |
Then check all sensor inputs and signals from other systems.
|
| - |
Finally, check the control module outputs. Remember that the test readings do not indicate whether the actuator is working.
|
| • |
If any reading is not OK, consult the wiring diagram to trace the leads, connectors or components which should be checked more thoroughly.
|
|
| • |
The test readings given apply to a calibrated Fluke 88/97.
|
|
| • |
The test readings show the signal pulse condition or pulse length. A test instrument with pulse rate or width measurement must be used.
|
|
| Connector 1 (K1), test readings |
| Pin | BOB Pin No. | Cable colour | Component/function | Input/Output | Test conditions | Across X-Y | Test reading (V) |
|
1
|
1
|
BU/RD
|
Power supply +15
|
Out
|
|
1-7
|
B+
|
|
2-3
|
2-3
|
|
|
|
|
|
|
|
4
|
4
|
GN
|
I-bus (+)
|
In/Out
|
Ignition ON
|
4-7
|
2-3
|
|
5
|
5
|
|
|
|
|
|
|
|
6
|
6
|
RD
|
Power supply +30
|
In
|
6-7
|
B+
|
|
|
7
|
7
|
BK
|
Ground
|
In
|
|
7-good grounding point
|
<0.5
|
|
8
|
8
|
WH
|
I-bus (-)
|
Ignition ON
|
8-7
|
2-3
|
| Connector 2 (K2), test readings |
| Pin | BOB Pin No. | Cable colour | Component/function | Input/Output | Test conditions | Across X-Y | Test reading (V) |
|
1
|
9
|
RD
|
Switch power supply
|
Out
|
Ignition ON
|
1-7(K1)
|
B+
|
|
2
|
10
|
GY
|
Memory button 1
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
2-7(K1)
|
0
B+ |
|
3
|
11
|
WH
|
Memory button 2
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
3-7(K1)
|
0
B+ |
|
4
|
12
|
BN
|
Memory button 3
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
4-7(K1)
|
0
B+ |
|
5-17
|
13-25
|
|
|
|
|
|
|
|
18
|
26
|
OG
|
Memory store button
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
18-7(K1)
|
0
B+ |
|
19
|
27
|
BU
|
Switch, seat forwards
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
19-7(K1)
|
0
B+ |
|
20
|
28
|
BU/WH
|
Switch, seat backwards
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
20-7(K1)
|
0
B+ |
|
21
|
29
|
YE/WH
|
Switch, backrest forwards
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
21-7(K1)
|
0
B+ |
|
22
|
30
|
YE
|
Switch, backrest backwards
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
22-7(K1)
|
0
B+ |
|
23
|
31
|
BN
|
Switch, front up
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
23-7(K1)
|
0
B+ |
|
24
|
32
|
BN/WH
|
Switch, front down
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
24-7(K1)
|
0
B+ |
|
25
|
33
|
GN
|
Switch, rear up
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
25-7(K1)
|
0
B+ |
|
26
|
34
|
GN/WH
|
Switch, rear down
|
In
|
Button in neutral position
Button pressed (Ignition ON) |
26-7(K1)
|
0
B+ |
| Connector 3 (K3), test readings |
| Pin | BOB Pin No. | Cable colour | Component/function | Input/Output | Test conditions | Across X-Y | Test reading (V) |
|
1
|
35
|
BU/WH
|
Ground, Hall sensor / seat forwards-backwards
|
In
|
Ignition ON
|
1-7(K1)
|
< 0.5
|
|
2
|
36
|
BU
|
Hall sensor / seat forwards-backwards
|
In
|
Any motor running
|
2-1
|
4-7
|
|
3
|
37
|
YE/WH
|
Ground, Hall sensor / backrest forwards-backwards
|
In
|
Ignition ON
|
3-7(K1)
|
< 0.5
|
|
4
|
38
|
YE
|
Hall sensor / backrest forwards-backwards
|
In
|
Any motor running
|
4-3
|
4-7
|
|
5
|
39
|
BN/WH
|
Ground, Hall sensor / front up-down
|
In
|
Ignition ON
|
5-7(K1)
|
< 0.5
|
|
6
|
40
|
BN
|
Hall sensor / front up-down
|
In
|
Any motor running
|
6-5
|
4-7
|
|
7
|
41
|
GN/WH
|
Ground, Hall sensor / rear up-down
|
In
|
Ignition ON
|
7-7(K1)
|
< 0.5
|
|
8
|
42
|
GN
|
Hall sensor / rear up-down
|
In
|
Any motor running
|
8-7
|
4-7
|
|
9
|
43
|
|
|
|
|
||
|
10
|
44
|
BU
|
Seat forwards
|
Out
|
Button pressed
Button in neutral position (Ignition ON) |
10-7(K1)
|
B+
0 |
|
11
|
45
|
|
|
|
|
|
|
|
12
|
46
|
BN
|
Front up
|
Out
|
Button pressed
Button in neutral position (Ignition ON) |
12-7(K1)
|
B+
0 |
|
13-14
|
47-48
|
|
|
|
|
||
|
15
|
49
|
BU/WH
|
Seat backwards
|
Out
|
Button pressed
Button in neutral position (Ignition ON) |
15-7(K1)
|
B+
0 |
|
16
|
50
|
|
|
|
|
||
|
17
|
51
|
BN/WH
|
Front down
|
Out
|
Button pressed
Button in neutral position (Ignition ON) |
17-7(K1)
|
B+
0 |
|
18
|
52
|
|
|
|
|
|
|
|
19
|
53
|
GN/WH
|
Rear down
|
Out
|
Button pressed
Button in neutral position (Ignition ON) |
19-7(K1)
|
B+
0 |
|
20
|
54
|
GN
|
Rear up
|
Out
|
Button pressed
Button in neutral position (Ignition ON) |
20-7(K1)
|
B+
0 |
|
21
|
55
|
YE/WH
|
Backrest backwards
|
Out
|
Button pressed
Button in neutral position (Ignition ON) |
21-7(K1)
|
B+
0 |
|
22
|
56
|
YE
|
Backrest forwards
|
Out
|
Button pressed
Button in neutral position (Ignition ON) |
22-7(K1)
|
B+
0 |
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