BE6653
W02205
F00037
ON
(
−
)
(+)
GS2
GS1
GST
F00012
IG SW
GST
ON
OFF
5 V
0 V
1.5 sec.
0.5 sec.
DI
−
220
−
DIAGNOSTICS
ANTI
−
LOCK BRAKE SYSTEM
1996 LAND CRUISER (RM451U)
INSPECTION PROCEDURE
1
Check for open and short in harness and connector between Deceleration sen-
sor and ECU (See page
IN
−
28
).
NG
Repair or replace harness or connector.
OK
2
Check voltage between terminals GS1, GS2, GST of ABS ECU and body ground.
PREPARATION:
(a)
Remove the ABS ECU with connectors still connected.
(b)
Disconnect the deceleration sensor connector.
(c)
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals GS1, GS2, GST of the
ECU and Body ground.
OK:
Voltage:
GS1, GS2: 4
−
14 V
GST: As shown below
NG
Check and replace ABS ECU.
OK
Check and replace deceleration sensor.
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Version 1.00 - 12/21/2010