Test readings, control moduleconnections
|
Test readings, control module
connections
|
Scope
Test readings and instructions for measuring signals and signal levels on the ABS
control module are given in the following pages.
•
|
Readings must be taken with a
BOB (Break-Out Box) connected between the control module and the control module's
connector.
|
•
|
Some voltage levels must be regarded as guiding values. Use your common
sense when judging whether a reading is correct or not.
|
•
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If any test reading is incorrect, use the wiring diagram to trace the leads,
connectors or components which you consider ought to be checked more thoroughly.
|
•
|
Page references in the table refer to the page on which the description of
operation of the signal concerned will be found, and also to the fault diagnosis schedule
containing a complete description of the diagnostic procedure to be followed.
|
> = Greater than; < = Less than;
»
= Approximately equal to;
∼ = Alternating current
Pin
|
Colour
|
Component/Function
|
in/Out
|
Test
condition
|
Test
reading
|
Across X-
Y
|
Function Page
|
Fault diagnosis
Page
|
1
|
GY/GN
|
ABS lamp
|
Out
|
|
|
1-3
|
|
,
|
2
|
|
Not used
|
|
|
|
|
|
|
3
|
|
Not used
|
|
|
|
|
|
|
4
|
GN
|
Wheel sensors FL
Signal input
|
In
|
Rotate wheel 1 rev/sec.
|
>100mV∼
|
4-5
|
|
|
5
|
GN
|
Wheel sensor FL
Reference ground
|
In
|
Rotate wheel 1 rev/sec.
|
>100mV∼
|
5-4
|
|
|
6
|
BN/RD
|
Wheel sensor RR
Signal input
|
In
|
Rotate wheel 1 rev/sec.
|
>100mV∼
|
6-18
|
|
|
7
|
GN/BN
|
Wheel speed FR
|
Out
|
Rotate wheel
|
0/10 V
|
7-B-
|
|
|
8
|
|
Not used
|
|
|
|
|
|
|
9
|
BU/WH
|
Wheel sensor RL
Reference ground
|
In
|
Rotate wheel 1 rev/sec.
|
>100mV∼
|
9-10
|
|
|
10
|
BU/WH
|
Wheel sensor RL
Signal input
|
In
|
Rotate wheel 1 rev/sec.
|
>100mV∼
|
10-9
|
|
|
11
|
WH/BK
|
Data link connector
|
In Out
|
Ignition on, ISAT ST
connected
|
10 V
|
11-B-
|
|
|
12
|
|
Not used
|
|
|
|
|
|
|
13
|
|
Not used
|
|
|
|
|
|
|
14
|
|
Not used
|
|
|
|
|
|
|
15
|
|
Not used
|
|
|
|
|
|
|
16
|
|
Not used
|
|
|
|
|
|
|
17
|
BK/GN
|
Wheel speed FL
|
Out
|
Rotate wheel
|
0/10 V
|
17-B-
|
|
|
18
|
BN/RD
|
Wheel sensor RR
Reference ground
|
In
|
Rotate wheel 1 rev/sec.
|
>100mV∼
|
18-6
|
|
|
19
|
YE/BN
|
Wheel speed RR
|
Out
|
Rotate wheel
|
0/10 V
|
19-B-
|
|
|
20
|
GN/RD
|
Wheel sensor FR
Signal input
|
In
|
Rotate wheel 1 rev/sec.
|
>100mV∼
|
20-21
|
|
|
21
|
GN/RD
|
Wheel sensor FR
Reference ground
|
In
|
Rotate wheel 1 rev/sec.
|
>100mV∼
|
21-20
|
|
|
22
|
OG/WH
|
Wheel speed RL
|
Out
|
Rotate wheel
|
0/10 V
|
22-B-
|
|
|
23
|
WT
|
Brake light switch
|
In
|
Brake activated
|
Batt+
|
23-B-
|
|
|
24
|
|
Not used
|
|
|
|
|
|
|
25
|
|
Not used
|
|
|
|
|
|
|