N18670
Junction Block No.1
ECU
−
B
Fuse
AB0119
I00014
I00027
GND
B
ON
(
−
)
(+)
DI
−
326
−
DIAGNOSTICS
CRUISE CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
INSPECTION PROCEDURE
1
Check ECU
−
B fuse.
PREPARATION:
Remove the ECU
−
B fuse from instrument panel fuse block.
CHECK:
Check continuity of ECU
−
B fuse.
OK:
Continuity
NG
Check for short in all the harness and compo-
nents connected to ECU
−
B fuse.
OK
2
Check voltage between terminals B and GND of cruise control ECU connector.
PREPARATION:
(a)
Remove the ECU with connector still connected.
(b)
Turn ignition switch ON.
CHECK:
Measure voltage between terminals B and GND of ECU con-
nector.
OK:
10
−
14 V
OK
Proceed to next circuit inspection shown on
problem symptoms table (See page
DI
−
295
).
NG
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Version 1.00 - 12/21/2010