Page 777 of 2543
DTC 13 14 Actuator Position Sensor Circuit
CIRCUIT DESCRIPTION
This circuit detects the rotation position of the actuator control plate and sends a signal to the ECU.
Code No.
Diagnosis
Trouble area
13 Position sensor detects abnormal voltage. Cruise control actuator position sensor.
13
Position sensor detects abnormal voltage.
Cruise control actuator osition sensor.
Harness or connector between actuator
14Position sensor signal value does notposition sensor and body ground. 14 Position sensor signal value does not
hhtht t osition sensor and body ground.
ECU
14
change when the motor operates. ECU
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEMBE±175
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Repair or replace harness or connector.
Check for open and short in harness and connector between ECU and actuator
position sensor (See page
IN±30).
(1) Turn ignition switch ON.
(2) Measure voltage between terminals VR2 and
VR3 of ECU connector while turning control plate
slowly by hand from the deceleration side to the
acceleration side.
Voltage:
Check actuator position sensor.
Replace actuator assembly.Replace actuator assembly.
Check voltage between terminals VR2 and VR3 of ECU connector.
Fully closed: approx. 1.3 V
Fully opened: approx. 4.1 V
In addition, as the control plate is turned, the volt-
age should increase gradually without interruption.
Remove ECU with connectors still connected.
Proceed to next circuit inspection shown on
matrix chart (See page BE±170).
Resistance:
Fully closed: Approx. 260 k
In addition, as the control plate turns, the resistance
should increase gradually without interruption.
Fully opened: Approx. 2.2 k
Measure resistance between actuator terminals 1 and
3 of actuator connector.
Resistance: Approx. 2.2 k
Measure resistance between actuator terminals 2 and
3 of actuator connector, while turning the control plate
slowly by hand from the deceleration side to the ac-
celeration side.
(1) Remove cruise control actuator.
(2) Disconnect the actuator connector.
INSPECTION PROCEDURE
Check harness and connector for loose connection.
If connection is normal check and replace ECU.
BE±176± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM
Page 779 of 2543
DTC 21 23 Speed Sensor Circuit
The speed sensor signal is sent to cruise control ECU as ve-
hicle speed signal.
The rotor shaft is driven by the gear of the transmission. For
each rotation of the shaft, the speed sensor sends a 4±pulse
signal to the combination meter.
This signal is converted inside the combination meter and
sent as a 4±pulse signal to the cruise control ECU.
The ECU calculates the vehicle speed from this pulse fre-
quency.
CIRCUIT DESCRIPTION
Speed signal is not input to the ECU while
cruise control is set..
Vehicle speed decrease 16 km/h or more
than preset speed.
Vehicle speed sensor pulse is abnormal.
Speed sensor
Combination meter
Harness or connector between speed sen-
sor and combination meter, combination
meter and ECU.
ECU
Actuator
Speed sensor
Harness or connector in OD and SPD cir-
cuit (Open or short intermittently)
ECU
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEMBE±177
Page 780 of 2543
WIRING DIAGRAM
INSPECTION PROCEDURE
page BE±41).
Repair or replace speed sensor, harness,
connector or combination meter assembly.
Proceed to next circuit inspection shown on
matrix chart (See page BE±170).
(1) See input signal check on page BE±169.
(2) Check indicator light operation when driving with
vehicle speed above 40 km/h (25 mph), and with
vehicle speed below 40 km/h (25 mph).
Input signal check.
Check speedometer circuit (See combination meter troubleshooting on
Vehicle speed above 40 km/h (25 mph):
Indicator light blinks
Vehicle speed below 40 km/h (25 mph):
Indicator light stays on
Check harness and connector for loose connection.
If connection is normal, check and replace ECU. BE±178
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM
Page 781 of 2543
DTC 32 34 Control Switch Circuit (Cruise Control Switch)
CIRCUIT DESCRIPTION
This circuit carries the SET/COAST, RESUME/ACCEL and CANCEL signals (each voltage) to the ECU.
Code No.
Diagnosis
Trouble area
32
Short in, control switch circuit.
Cruise control switch.
Harness or connector between control
34
Voltage abnormality in control switch
Harness or connector between control
switch and ECU.
ECU
WIRING DIAGRAM
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEMBE±179
Page 782 of 2543

INSPECTION PROCEDURE
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 operation when each of
the SET/COAST, RESUME/ACCEL and CAN±
CEL is turned ON.
Input signal check.
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.
Check voltage between terminal CCS of ECU connector and body ground.
Proceed to next circuit inspection shown on matrix
chart (See page
BE±170).
(1) Turn ignition switch ON.
(2) Measure voltage between terminal CCS of ECU
connector and body ground, when each of the
SET/COAST, RESUME/ACCEL and CANCEL is
turned ON.
Remove ECU with connectors still connected.
Switch position
Neutral
RES/ACC
SET/COAST
CANCEL
Voltage
Go to step [3].
BE±180± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM
Page 783 of 2543
control switch (See page IN±30).
Switch position
Neutral
RES/ACC
SET/COAST
CANCEL
Replace cruise control switch.
Measure resistance between terminals 3 and 4 of
control switch connector when control switch is
operated.
Repair or replace harness or connector.
Check and replace ECU.
When diagnostic trouble code 34 is displayed, carefully
check that resistance is always 8 in neutral position,
particularly when switching between RES/ACC and
SET/COAST.
(1) Remove steering wheel center pad.
(2) Disconnect control switch connector (See
page RS Section).
Check control switch.
Check for open and short in harness and connector between ECU and
Resistance
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEMBE±181
Page 784 of 2543
Stop Light Switch Circuit
CIRCUIT DESCRIPTION
When the brake is on, battery voltage normally applies through the stop fuse and stop switch to terminal STP±of
the ECU, and the ECU turns the cruise control off.
A fail±safe function is provided so that cancel functions normally, even if there is a malfunction in the stop light
signal circuit.
(1) If the harness connected to terminal STP±has an open, terminal STP±will have battery positive voltage
and the cruise control will be turned off, also SET not occurring.
(2) If the stop fuse is open, terminal STP + becomes approx.
0 V when the brake is turned on, so the ECU performs cancel function normally.
Also, when the brake is on, the magnetic clutch is cut mechanically by the stop light switch, turning the cruise
control off. (See page BE±173 for operation of the magnetic clutch.)
WIRING DIAGRAM
BE±182± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM