Input Signal
Indicator Light
Blinking Pattern
SET/COAST
switch
RESUME/ACCEL
switch
CANCEL switch
2 Pulses
ON
OFF
ON
OFF
3 Pulses
ON
OFF
SW OFF
SW ON
AB0119
I00136
I00162
ON
CCS
(+)
(
−
)
DI
−
312
−
DIAGNOSTICS
CRUISE CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
INSPECTION PROCEDURE
1
Input signal check.
PREPARATION:
See input signal check on page
DI
−
286
.
CHECK:
Check the indicator light operation when each of the SET/
COAST, RESUME/ACCEL and CANCEL is turned on.
OK:
SET/COAST, RESUME/ACCEL switch
The signals shown in the table on the left should be
output when each switch is ON. The signal should
disappear when the switch is turned OFF.
CANCEL switch
The indicator light goes off when the cancel switch is
turned ON.
OK
Wait and see.
NG
2
Check voltage between terminals CCS of cruise control ECU connector and body
ground.
PREPARATION:
(a)
Remove the ECU with connector still connected.
(b)
Turn ignition switch ON.
CHECK:
Measure voltage between terminals CCS of ECU connector
and body ground, when each of the SET/COAST, RESUME/
ACCEL and CANCEL is turned ON.
Switch position
Resistance (
Ω
)
Neutral
10
−
14 V
RES/ACC
0.7
−
2.5 V
SET/COAST
2.3
−
4.6 V
CANCEL
4.1
−
7.2 V
NG
Proceed to next circuit inspection shown on
problem symptoms table (See page
DI
−
295
)
OK
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Version 1.00 - 12/21/2010