Page 2505 of 4592
Input SignalIndicator Light
Blinking Pattern
Turn PNP switch
OFF (Shift to posi-
tions except D )LightON
OFFSW ON
SW OFF
± DIAGNOSTICSCRUISE CONTROL SYSTEM
DI±353
INSPECTION PROCEDURE
1 Check starter operation.
CHECK:
Check that the starter operates normally and that the engine starts.
NG Proceed to engine troubleshooting
(See Pub. No. RM654U on page ST±1).
OK
2 Input signal check.
PREPARATION:
See input signal check on page DI±319.
CHECK:
Check the indicator light when shifting into positions except D.
OK:
The indicator light goes off when shifting into posi-
tions except D.
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI±328).
NG
Page 2506 of 4592
AB0119
I00139
I00175
ON
D
(±) (+)
DI±354
± DIAGNOSTICSCRUISE CONTROL SYSTEM
3 Check voltage between terminal D of cruise control ECU connector and body
ground.
PREPARATION:
Turn ignition switch ON.
CHECK:
Measure voltage between terminal D of ECU connector and
body ground when shifting into D position and other positions.
OK:
Shift PositionVoltage
D position10 ± 14 V
Other positionsBelow 1 V
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI±328).
NG
4 Check harness and connector between cruise control ECU and park/neutral
position switch (See page IN±29).
NG Repair or replace harness or connector.
OK
Check and replace cruise control ECU
(See page IN±29).
Page 2507 of 4592
I08464
Ignition Switch
24
AM1IG1
B±YInstrument Panel J/B
1
1K
B±G
FL MAIN
BatteryECU±IG
1J9
B±RCCJ12
J/C
B±RCruise Control ECU
9
C16
B
GND W
FL BLOCK
1
F91
F14
B±RInstrument Panel J/B
1
1B2
1K AM1
IFJ9
J/C
W±BA
1J7 Instrument Panel J/B
1J8
W±BAA J/C
J6J7
W±B16
C16
± DIAGNOSTICSCRUISE CONTROL SYSTEM
DI±355
ECU Power Source Circuit
CIRCUIT DESCRIPTION
The ECU power source supplies power to the actuator and sensors, etc, when terminal GND and the cruise
control ECU case are grounded.
WIRING DIAGRAM
DI08X±12
Page 2508 of 4592
I00157
Instrument panel junction block No.1:
ECU±IG
Fuse
AB0119
I00147
I00176
ON
GND
(±) (+)B
DI±356
± DIAGNOSTICSCRUISE CONTROL SYSTEM
INSPECTION PROCEDURE
1 Check ECU±IG fuse.
PREPARATION:
Remove the ECU±IG fuse from instrument panel junction block
No.1.
CHECK:
Check continuity of ECU±IG fuse.
OK:
Continuity
NG Check for short in all the harness and compo-
nents connected to ECU±IG 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:
Voltage: 10 ± 14 V
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI±328).
NG
Page 2509 of 4592
I00140
GND
± DIAGNOSTICSCRUISE CONTROL SYSTEM
DI±357
3 Check resistance between terminal GND of cruise control ECU connector and
body ground.
CHECK:
Measure resistance between terminal GND of ECU connector
and body ground.
OK:
Resistance: Below 1 W
NG Repair or replace harness or connector.
OK
Check and repair harness and connector be-
tween cruise control ECU and battery
(See page IN±29).
Page 2510 of 4592
AB0119
I00145
I00177
ON
CMS
(±) (+)
DI±358
± DIAGNOSTICSCRUISE CONTROL SYSTEM
Main Switch Circuit (Cruise Control Switch)
CIRCUIT DESCRIPTION
When the cruise control main switch is turned OFF, the cruise control does not operate.
WIRING DIAGRAM
See page DI±340.
INSPECTION PROCEDURE
1 Check voltage between terminal CMS 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 terminal CMS of cruise control ECU
connector when main switch is held ON and OFF.
OK:
Main switchVoltage
OFF10 ± 14 V
ONBelow 0.5 V
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI±328).
NG
DI08Z±17
Page 2511 of 4592
N15969
35
± DIAGNOSTICSCRUISE CONTROL SYSTEM
DI±359
2 Check main switch continuity.
PREPARATION:
(a) Remove steering wheel pad
(See Pub. No. RM654U on page SR±11).
(b) Disconnect the control switch connector.
CHECK:
Check continuity between terminals 3 and 5 of control switch
connector when main switch is held ON and OFF.
OK:
Switch positionTester connectionSpecified condition
OFF3 ± 5No continuity
Hold ON3 ± 5Continuity
NG Replace control switch.
OK
3 Check harness and connector between cruise control ECU and main switch
(See page IN±29).
NG Repair or replace harness or connector.
OK
Check and replace cruise control ECU
(See page IN±29).
Page 2512 of 4592
I08465
Battery FL MAINB±G1
F9FL BLOCK
ALT1
F14 R±L
Instrument Panel J/B
2
1D
1K1
GAUGE
B±YIgnition Switch
4 IG1 AM1 2
W
B±RInstrument Panel J/B
1
1BAM12
1K CRUISE MAIN
Indicator Light
(in Combination Meter)
D DJ/CJ3
R±L10 7
C12 C12IE25
OODD
O J/CJ1
4
C16
Cruise Control ECU
PI DI±360
± DIAGNOSTICSCRUISE CONTROL SYSTEM
CRUISE MAIN Indicator Light Circuit
CIRCUIT DESCRIPTION
When the cruise control main switch is turned ON, CRUISE MAIN indicator light lights up.
WIRING DIAGRAM
DI090±20