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STEERING SYSTEM
IT4E2] 4-3
1 . CHECK VEHICLE SPEED SENSOR 2 INPUT
SIGNAL AT ECU
1) Connect oscilloscope between ECU and GND. (DC
COUP, 0.5V/Div, 1 s/Div, x 10 probe)
2) Raise vehicle using jack and slowly rotate wheels .
3) Measure voltage across connector-(B53) terminal
and GND indicated below .
Connector fr Terminal/Specified voltage :
(1353) No. 4 - Body/0 *--+ 5V
2) Check harness routing inside instrument panel .
(1) Extract combination meter assembly and instru-
ment panel.
(2) Disconnect connector (B9).
(3) Measure resistance between connector-(B9) and
connector-(B7) terminals, and connector-(B7) termi-
nal and GND, indicated below .
Connector fr Terminal/Specified resistance:
(139) No. 2 - (137) No. 22/1 Q max .
(137) No. 11 - Body/1 Mfg min.
5a
C4-582
Fig . 196
2. CHECK VEHICLE SPEED SENSOR 2 AND HAR-
NESS
1) Check harness routing outside instrument panel .
Measure resistance between connector-(B9) and ECU
connector-(1353) terminals, and ECU connector-(B53)
terminal and GND, indicated below.
Connector fr Terminal/Specified resistance :
(B9) No . 1 - (1353) No . 4/1 Q max.
(1353) No. 4 - Body/1 Mfg min .
I
l .
Y
1353
8
7 6 5 4 3 2
1
3 2 1
161514131211 10 9
139
,g _
R
C4-583
Fig. 197
I
1 234
B7
3
2 1
B9
5 6 7 8
9 10 11 12
C4-584
Fig. 198
(4) Check continuity between connector-(B9) and
GND.
Connector fr Terminal/Specified resistance :
(139) No. 2 - Body/1 Mfg max .
Fig . 199
97
'k
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Troubleshooting
