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STEERING SYSTEM
[T3Fo] 4-3
F: I/O (INPUT/OUTPUT) VOLTAGE DATA
(Refer to NOTE .)
Measuring condition and measurement value
Measuring terminal
IG SW
stem to check
Sy
Lead
ON
Engine idling
Remarks
NO.
color
OFF
(engine off)
Vehicle speed sensor 2
4
RW
0V
0 or 5V
0 or 5V
Vehicle speed : 0 km/h (0
MPH)
MPFI (engine speed)
3
BL
0V
10 V min .
10 V min .
Input rectangular
Solenoid-1
Output rectangular pulse [at
11
YG
0V
10V min .
10V min .
vehicle speed of 0 km/h (0
Solenoids
(+ side)
MPH)]
Solenoid-2
9
BrW
0V
0 to 1 V
0 to 1 V
(Return side)
Warning lamp
9
WL
0V
10V min.
10V min.
Read memory
6
Br
0V
5V
5V
mode
Self-diagnosis
Test mode
5
YB
0V
5V
5V
Diagnosis
7
BrY
mode
ECU power
16
BrR
0V
10V min.
10V min .
supply
Power supply
Back-up power
supply
15
LR
10V min .
10V min .
10V min .
(for memory)
GND
13
B
0V
0V
0V
NOTE :
1 : Measure voltage across applicable terminal and GND (body metal) .
2: Measuring terminals No.
Unit side
to
B53
7 1 6
16
1
15 14
, : 13
04-614
Fig . 178
8
5 4 3
2
1
12 11 10 9
83
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Troubleshooting
