Page 792 of 2543
(See page BE±42).
BE±169.
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
(1) See input signal check on page BE±169.
(2) Check the indicator light when the parking brake
lever is pulled up.
Check operation of brake warning light.
Check voltage between terminal PKB of cruise control ECU connector and
body ground.
(1) Turn ignition switch ON.
(2) Measure voltage between terminal PKB of cruise
control ECU connector and body ground, when
the parking brake lever is pulled up and released.
Remove cruise control ECU with connectors still con-
nected.
Input signal check.
The indicator light goes off when the parking brake lever
is pulled up.
Check that the brake warning light in the instrument panel comes on when the parking brake lever is
pulled up with the engine running, and the light goes off when the parking brake lever is released.
Check brake warning light circuit
Parking brake lever
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
Voltage
Pulled up
Released
Check for open in harness and connector between cruise control ECU and
brake warning light.
Repair or replace harness or connector.
Check and replace cruise control ECU. BE±190
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM
Page 794 of 2543
INSPECTION PROCEDURE
Check that the starter operates normally and that the engine starts.
EG±381 or EG±487.)
(See page IN±30).
on page BE±169.
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
(1) See input signal check on page BE±169.
(2) Check the indicator light when shifting into ex±
cept D position.
Check operation of starter.
Check voltage between terminal D of ECU connector and body ground.
(1) Turn ignition switch ON.
(2) Measure voltage between terminal D of ECU
connector and body ground, when shifting into P,
N position and other positions.
Remove ECU with connectors still connected.
Input signal check.
The indicator light goes off when shifting into except D
range.
Proceed to engine troubleshooting (See page
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
VoltageShift Position
D range
Other ranges
Check for open in harness and connector between ECU and ST fuse
Repair or replace harness or connector.
Check and replace ECU. BE±192
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM
Page 796 of 2543
Check voltage between terminals +B and GND of ECU connector.
(1) Turn ignition switch ON.
(2) Measure voltage between terminals +B and
GND of ECU connector.
Remove ECU with connectors still connected.
Voltage: 10 ± 14 V
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
Check continuity between terminal GND of ECU connector and body
ground.
Measure resistance between terminal GND of cruise
control ECU connector and body ground.
Resistance: 1 or loss
Repair or replace harness or connector.
Check and repair harness and connector
between battery and ECU. BE±194
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM
Page 797 of 2543
Back up Power Source Circuit
CIRCUIT DESCRIPTION
The ECU back±up power source provides power even when the ignition switch is off and is used for diagnostic
code memory, etc.
WIRING DIAGRAM
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEMBE±195
Page 800 of 2543
Check harness and connector between cruise control ECU and main
switch, main switch and body ground. (See page IN±30).
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
(1) Turn ignition switch ON.
(2) Measure voltage between terminal CMS and
GND of cruise control ECU connector when main
switch is held on and off.
Remove cruise control ECU with connectors still con-
nected.
Main switch
Repair or replace harness or connector.
Check and replace cruise control ECU.
Voltage
Check continuity between terminals 2 and 4 of cruise
control switch connector when main switch is held on
and off.
(1) Remove steering wheel center pad (See page
RS Section).
(2) Disconnect cruise control switch connector.
Terminals
Main switch
OFF
Hold ON
Continuity
Check main switch.
Repair or replace harness or connector.
Check and replace cruise control ECU.
Replace control switch.
Check voltage between terminal CMS and GND of cruise control ECU
connector
BE±198± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM
Page 802 of 2543
INSPECTION PROCEDURE
Check for open and short in harness and connector between ECU and TDCL,
TDCL and body ground. (See page IN±30).
Repair or replace harness or connector.
Check and replace ECU.
Voltage: 10 ± 14 V
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
(1) Turn ignition switch ON.
(2) Measure voltage between terminals Tc and E1 of
DCL.
Check voltage between terminals Tc and E1 of DLC.
BE±200± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM
Page 803 of 2543
SERVICE SPECIFICATIONS
SERVICE DATA
INTEGRATION RELAY (Light Auto Cut System)
B2 ± Ground (Constant) Battery positive voltage
B3 ± Ground (Constant) Battery positive voltage
A7 ± Ground (Ignition SW position LOCK or ACC) No voltage
A7 ± Ground (Ignition SW position ON)
Battery positive voltage
A1 ± Ground (Constant)
Battery positive voltage
DAYTIME RUNNING LIGHT MAIN RELAY (Wire Harness Side)
2 ± Ground (Ignition SW position LOCK or ACC) No voltage
2 ± Ground (Ignition SW position ON) Battery positive voltage 11 ± Ground (Engine stop) No voltage
11 ± Ground (Engine running)
Battery positive voltage
15 ± Ground (Constant) Battery positive voltage
17 ± Ground (Constant) Battery positive voltage
TURN SIGNAL FLASHER
Flashes/Minute 60 ± 120
INTEGRATION RELAY (Interior Light System)
9 ± Ground (Ignition SW position LOCK or ACC) No voltage
9 ± Ground (Ignition SW position ON) Battery positive voltage
1 ± Ground (Constant) Battery positive voltage
SPEEDOMETER (USING A SPEEDOMETER TESTER)
Standard indication (mph)
Allowable range (mph)
20
18 ± 24
40 38 ± 44
60 58 ± 66
80 78 ± 88 100 98 ± 110
120
118 ± 132
Standard indication (km/h) Allowable range (km/h)
20 17 ± 24
40 38 ± 46
60 57.5 ± 67
80
77 ± 88
100 96 ± 109
120 115 ± 130
140 134 ± 151.5
160 153 ± 173
± BODY ELECTRICAL SYSTEMSERVICE SPECIFICATIONSBE±201
Page 804 of 2543
TACHOMETER (ON±VEHICLE)
Standard indication (rpm) Allowable range (rpm)
700 630 ± 770
1000 915 ± 1115
2000 1920 ± 2220
3000 2890 ± 3350
4000 3940 ± 4400
50005025 ± 5425
6500
6650 ± 6950
7000
7025 ± 7625 OD/TRIP METER (CONNECTOR CONNECTED)
1 ± Ground (Ignition SW position ON) Battery positive voltage 4 ± Ground (Light Control SW position TAIL or HEAD) Battery positive voltage 5 ± 7 (Ignition SW ON and drive the vehicle slowly) OV eBattery positive voltage 6 ± 7 (Ignition SW ON and drive the vehicle slowly) OV emore than 5V 8 ± Ground (Constant) Battery positive voltage
10 ± Ground (Ignition SW ON, Light Control SW TAIL or
HEAD and turn the Light Control Rheostat
knob to clockwise)
6V " 0V
FUEL RECEIVER GAUGE
A ± B Approx. 269.7
A ± C Approx. 123.5
B ± C Approx. 146.2
FUEL SENDER GAUGE
Float position: F Approx. 4.0
Float position: 1/2 Approx. 55.0
Float position: E Approx. 107.0
ENGINE COOLANT TEMPERATURE RECEIVER GAUGE
A ± B Approx. 229.7
A ± C Approx. 54.0
B ± C Approx. 175.7
ENGINE COOLANT TEMPERATURE SENDER GAUGE
50 °C (122.0 °F) 160 ± 240
120 °C (248.0 °F) 17.1 ± 21.2
LIGHT FAILURE SENSOR
3 ± Ground (Light Control SW position OFF) No voltage
3 ± Ground (Light Control SW position TAIL or HEAD) Battery positive voltage
4 ± Ground (Ignition SW position LOCK or ACC) No voltage
4 ± Ground (Ignition SW position ON) Battery positive voltage
7 ± Ground (Stop Light SW position OFF) No voltage
7 ± Ground (Stop Light SW position ON) Battery positive voltage
8 ± Ground (Engine stop)No voltage
8 ± Ground (Engine running)
Battery positive voltage
INTEGRATION RELAY (Seat Belt Warning)
1 ± Ground (Constant) Battery positive voltage 9 ± Ground (Ignition SW LOCK or ACC) No voltage 9 ± Ground (Ignition SW ON) Battery positive voltage
BE±202± BODY ELECTRICAL SYSTEMSERVICE SPECIFICATIONS
