Infiniti I30 (A33). Manual — part 404
PFA021B
I
Self-diagnostic results are shown on display.
Refer to “CONSULT-II Self-diagnostic Results” table (EL-285).
PEL043P
8.
Touch DATA MONITOR.
PEL811S
I
Touch START.
I
Data monitor results are shown on display.
Refer to “CONSULT-II Data Monitor” table (EL-286).
For further information, read the CONSULT-II Operation
Manual.
CONSULT-II Self-diagnostic Results
NHEL0230
Diagnostic item
Description
Repair/Check order
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
I
Even if no malfunction is indicated, further testing may
be required as far as the customer complains.
—
POWER SUPPLY-VALVE
I
The power supply circuit for the ASCD pump is open.
(An abnormally high voltage is entered.)
ASCD PUMP CIRCUIT CHECK
(EL-295)
VACUUM PUMP
I
The vacuum motor circuit is open or shorted. (An
abnormally high or low voltage is entered.)
ASCD PUMP CIRCUIT CHECK
(EL-295)
AIR VALVE
I
The air valve circuit is open or shorted. (An abnormally
high or low voltage is entered.)
ASCD PUMP CIRCUIT CHECK
(EL-295)
RELEASE VALVE
I
The release valve circuit is open or shorted. (An abnor-
mally high or low voltage is entered.)
ASCD PUMP CIRCUIT CHECK
(EL-295)
VHCL SP·S/FAILSAFE
I
The vehicle speed sensor is malfunctioning.
VEHICLE SPEED SENSOR
CHECK (EL-294)
CONTROL UNIT
I
The ASCD control unit is malfunctioning.
Replace ASCD control unit.
BRAKE SW/STOP/L SW
I
The brake switch or stop lamp switch circuit is malfunc-
tioning.
ASCD BRAKE/STOP LAMP
SWITCH CHECK (EL-290)
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
CONSULT-II Inspection Procedure (Cont’d)
EL-285
Diagnostic item
Description
Repair/Check order
COMMAND SW
I
The steering switch (set/coast switch, resume/accel
switch or cancel switch) is malfunctioning.
ASCD STEERING SWITCH
CHECK (EL-292)
CONSULT-II Data Monitor
NHEL0231
Monitored item
Description
BRAKE SW
I
Indicates [ON/OFF] condition of the brake switch and park/neutral position relay.
AT OD MONITOR
I
Indicates [ON/OFF] condition of A/T O/D (shift solenoid valve A).
STOP LAMP SW
I
Indicates [ON/OFF] condition of the stop lamp switch.
MAIN SW
I
Indicates [ON/OFF] condition of main switch.
SET SW
I
Indicates [ON/OFF] condition of the set switch.
RESUME/ACC SW
I
Indicates [ON/OFF] condition of the resume/accelerate switch.
CANCEL SW
I
Indicates [ON/OFF] condition of the cancel.
VHCL SPEED SE
I
The present vehicle speed computed from the vehicle speed sensor signal is displayed.
SET VHCL SPD
I
The preset vehicle speed is displayed.
VACUUM PUMP
I
The operation time of the vacuum pump is displayed.
AIR VALVE
I
The operation time of the air valve is displayed.
PW SUP-VALVE
I
Indicates [ON/OFF] condition of the circuit for the air valve and the release valve.
CRUISE LAMP
I
Indicates [ON/OFF] condition of the set lamp.
MAIN LAMP
I
Indicates [ON/OFF] condition of cruise lamp.
A/T·OD CANCEL
I
Indicates [ON/OFF] condition of the OD cancel.
FAIL SAFE·LOW
I
The fail-safe (LOW) circuit function is displayed.
FAIL SAFE·SPD
I
The fail-safe (SPEED) circuit function is displayed.
TCS MONITOR
I
Indicates [ON/OFF] condition of TCS.
THRTL POS SEN
I
The degree of throttle position sensor is displayed.
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
CONSULT-II Self-diagnostic Results (Cont’d)
EL-286
Trouble Diagnoses
NHEL0232
SYMPTOM CHART
NHEL0232S01
PROCEDURE
Diagnostic procedure
REFERENCE PAGE (EL-
)
SYMPTOM
F
AIL-SAFE
SYSTEM
CHECK
POWER
SUPPL
Y
AND
GROUND
CIRCUIT
CHECK
ASCD
BRAKE/ST
OP
LAMP
SWITCH
CHECK
ASCD
STEERING
SWITCH
CHECK
VEHICLE
SPEED
SENSOR
CHECK
ASCD
PUMP
CIRCUIT
CHECK
ASCD
ACTUA
T
OR/PUMP
CHECK
ASCD cannot be set. (“CRUISE” indica-
tor lamp does not ON.)
X
X
★
3
ASCD cannot be set. (“SET” indicator
lamp does not blink.)
X
X
X
ASCD cannot be set. (“SET” indicator
lamp blinks.
★
1)
X
X
X
X
X
Vehicle speed does not decrease after
SET/COAST switch has been pressed.
X
X
Vehicle speed does not return to the set
speed after RESUME/ACCEL switch has
been pressed.
★
2
X
X
Vehicle speed does not increase after
RESUME/ACCEL switch has been
pressed.
X
X
System is not released after CANCEL
switch (steering) has been pressed.
X
X
Large difference between set speed and
actual vehicle speed.
X
X
X
Deceleration is greatest immediately
after ASCD has been set.
X
X
X
★
1: It indicates that system is in fail-safe. After completing diagnostic procedures, perform “FAIL-SAFE SYSTEM CHECK” (EL-288) to
verify repairs.
★
2: If vehicle speed is greater than 40 km/h (25 MPH) after system has been released, pressing RESUME/ACCEL switch returns vehicle
speed to the set speed previously achieved. However, doing so when the ASCD main switch is turned to “OFF”, vehicle speed will not
return to the set speed since the memory is canceled.
★
3: Check only main switch built-in steering switch.
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Trouble Diagnoses
EL-287
SEL417V
FAIL-SAFE SYSTEM CHECK
=NHEL0232S02
1.
Turn ignition switch to ON position.
2.
Turn ASCD main switch to ON and check if the “set indicator”
blinks.
If the indicator lamp blinks, check the following.
I
ASCD steering switch. Refer to EL-292.
SEL767P
3.
Drive the vehicle at more than 40 km/h (25 MPH) and push
SET/COAST switch.
If the indicator lamp blinks, check the following.
I
Vehicle speed sensor. Refer to EL-294.
I
ASCD pump circuit. Refer to EL-295.
I
Replace control unit.
SAT797A
4.
Depress brake pedal slowly (brake pedal should be depressed
more than 5 seconds).
If the indicator lamp blinks, check the following.
I
ASCD brake/stop lamp switch. Refer to EL-290.
5.
END. (System is OK.)
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Trouble Diagnoses (Cont’d)
EL-288
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