ignition switch INFINITI FX35 2008 Service Manual

ACTION TESTACS-11
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ACTION TEST
ICC System Running TestINFOID:0000000001328811
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
Set Checking
1. Press the MAIN switch for less than 1.5 seconds.
2. Drive the vehicle between 40 km/h (25 MPH) and 144 km/h (90 MPH).
3. Push the SET/COAST switch.
4. Confirm that the desired speed is set as hand is released from the SET/COAST switch.
NOTE:
 When there is no vehicle ahead, drive at the set speed steadily.
 When there is a vehicle ahead, control to maintain distance from the vehicle ahead, watching its speed.
 The set vehicle speed is displayed on the ICC system indicator in the combination meter.
Check For Increase Of Cruising Speed
1. Set vehicle-to-vehicle distance control mode at desired speed.
2. Check if the set speed increases by 1 km/h (1 MPH) as RESUME/ACCELERATE switch is pushed.
NOTE:
The maximum set speed of the vehicle-to-vehicl e distance control mode is 144 km/h (90 MPH).
Check For Decrease Of Cruising Speed
1. Set vehicle-to-vehicle distance control mode at desired speed.
2. Check if the set speed decreases by 1 km/h (1 MPH) as SET/COAST switch is pushed.
NOTE:
 Vehicle-to-vehicle distance control mode is automatica lly turned off when the driving speed lowers to 32 km/
h (20 MPH) due to the deceleration of the vehicle ahead.
 The minimum set speed of the vehicle-to-vehicle distance control mode is 40 km/h (25 MPH).
Check For Cancellation Of Vehicle-To-Vehicle Distance Control Mode (Normal Driving Condition) In The Following
Cases:
 When the brake pedal is depressed after the system is turned ON.
 When the selector lever is shifted to the “N” (Neutral) position.
 When the MAIN switch is turned OFF.
 When CANCEL switch is operated.
Check For Restoring Speed That Is Set By Vehicle-To-Vehicle Distance Control Mode Before Cancellation
1. Cancel the system by depressing the foot brake. Then, check that the speed before cancellation is
restored when pressing RESUME/ACCELERATE switch with 40 km/h (25 MPH) or above.
2. Cancel the system by shifting the selector lever to “N” position. Then, check if the speed set before the
cancellation is restored when RESU ME/ACCELERATE switch is pushed up.
3. Check if the speed previously set is restored w hen RESUME/ACCELERATE switch is operated with driv-
ing 40 km/h (25 MPH), after canceling vehicle-to-v ehicle distance control mode by operating the CANCEL
switch.
Check For MAIN Switch
1. Start engine. Then, check if the following operations are per- formed correctly.
2. Vehicle-to-vehicle distance control mode is displayed in combi- nation meter illuminates when MAIN switch is pressed “ON” for
less than 1.5 seconds and ready for operation. The illumination
goes off when MAIN switch is turned to OFF.
3. “CRUISE” illumination and ICC system display go off when the ignition switch is turned to OFF while MAIN switch is ON
(“CRUISE” illumination is ON and vehicle-to-vehicle distance
control mode is ready for operation).
SKIB8559E
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ACTION TESTACS-13
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Refer to "Check For Cancellation Of Vehicle-To-Vehicle Distance Control Mode (Normal Driving Condition) In
The Following Cases:".
Check For Restoring Speed That Is Set By Conventional (Fixed Speed) Cruise Control Mode Before ICC Cancella-
tion
Refer to "Check For Restoring Speed That Is Set By Vehicle-To-Vehicle Distance Control Mode Before Can-
cellation".
Check For MAIN Switch
1. Start engine. Then, check if the following operations are per- formed correctly.
2. “CRUISE” lamp illuminates and ICC system indicator goes off when MAIN switch is pressed “ON” for more than 1.5 seconds,
and then ready for operation. The illumination goes off when
MAIN switch is turned to OFF.
3. “CRUISE” illumination go off when the ignition switch is turned to OFF while MAIN switch is ON.
Check For RESUME/ACCELERATE, SET/COAST, CANCEL Switches
1. Check if RESUME/ACCELERATE, SET/COAST , CANCEL switches are operated smoothly.
2. Check if buttons come up as hand is released from the buttons.
SKIB8560E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TERMINALS AND REFERENCE VALUEACS-27
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TERMINALS AND REFERENCE VALUE
Terminal and Reference Value for ICC UnitINFOID:0000000001328820
Te r m i n a l s
(Wire color) Item Condition
Voltage (V)
+– Ignition
switch Operation
1 (R/W)
2 (R/W)
GroundBattery power supply OFF — Battery voltage
5 (P) CAN-L — — —
6 (GY/L) Release switch power supply ON — Approx. 10
7 (GY/R) NEUT-SW ON Selector lever in “N” or “P” posi-
tions
Approx. 12
Selector lever in other positions Approx. 0
8 (G) 24 (R) Brake pressure sensor power
supply ON — Approx. 5
10 (B/R)
GroundBrake booster solenoid
(+) side
ON — Approx. 12
12 (L/W) Brake booster solenoid
(–) side ONSolenoid operating
Solenoid not operating Approx. 12
14 (L) CAN-H — — —
15 (LG/B) Brake release switch
(normal closed)
ONDepress the brake pedal Approx. 0
Release the brake pedal Approx. 10
17 (BR) 24 (R) Brake pressure sensor signal ON Release the brake pedal Approx. 0.5
Depress the brake pedal
Approx. 0.5 - 3
(Note) Voltage becomes higher
depending on effectiveness of depressing brakes.
PKIA9673E
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ACS-28
< SERVICE INFORMATION >[ICC]
TERMINALS AND REFERENCE VALUE
Terminal and Reference Value for ICC Sensor
INFOID:0000000001328821
19 (B)
20 (B)
46 (B) GroundGround ON — Approx. 0
22 (G/Y) Brake release switch
(normally open) ONDepress the brake pedal Approx. 10
Release the brake pedal Approx. 0
24 (R) Brake pressure sensor signal
ground
—— Approx. 0
29 (SB) ICC brake switch
(normal closed) ONSelector
lever: Not
in “N” or
“P” posi-
tion Depress the brake
pedal
Approx. 0
Release the brake
pedal Approx. 12
30 (Y) DDL-TX — — —
33 (W)
42 (W) Ignition switch ON or START ON — Battery voltage
38 (P/B) Stop lamp switch
(normally open) ONDepress the brake pedal Approx. 12
Release the brake pedal Approx. 0
39
(G/OR) DDL-RX — — —
40
(PU/W)
GroundParking brake signal ON
Depress the parking brake Approx. 0
Release the parking brake Approx. 12
47 (W/R) Stop lamp drive output signal ON Brake operating with ICC sys-
tem
Approx. 12
Brake not operating with ICC
system Approx. 0
Te r m i n a l s
(Wire color) Item Condition
Voltage (V)
+– Ignition
switch Operation
Te r m i n a l s
(Wire color) Item Condition
Voltage (V)
+– Ignition
switch Operation
1 (Y)
Ground ICC sensor power supply ON — Battery voltage
3 (L) CAN-H — — —
4 (B) Ground — — Approx. 0
6 (R) CAN-L — — —
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TROUBLE DIAGNOSIS — GENERAL DESCRIPTIONACS-33
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1. Go to operation check after asking the cust omer for symptom information. Refer to ACS-11, "ICC System
Running Test".
2. Stop vehicle, turn ignition swit ch OFF, then connect CONSULT-III.
3. With engine started, check “Self Diagnostic Result” of ICC system.
4. Self-diagnostic result appears on screen. If “NO DTC ·· ·” is shown, check ICC warning lamp. If any mal-
function is indicated, GO TO step 5.
5. According to ACS-35, "
Diagnostic Trouble Code (DTC) Chart", perform appropriate check, and repair or
replace malfunctioning part as necessary.
6. Turn ignition switch OFF.
7. Start the engine and select “Self Diagnosti c Result” of ICC system, and erase DTC.
NOTE:
If the memory does not erase, go to 5.
8. Perform ICC system running test (drive vehicle wi th ICC system ON), and make sure that ICC warning
lamp does not illuminate.
WITHOUT CONSULT-III
1. Go to operation check after asking the cust omer for symptom information. Refer to ACS-11, "ICC System
Running Test".
2. Stop the vehicle to start the self-diagnosis.
3. Turn ignition switch OFF.
4. From 5 seconds through 15 seconds after turning ignition switch ON, press RESUME/ACCELERATE switch 5 times, and SET/
COAST switch 5 times.
NOTE:
 Never start engine.
 Never turn the MAIN switch ON.
 When operation above is not completed from 5 secondsthrough 15 seconds, start again from above go to 3.
 If self-diagnosis mode cannot be started after several
attempts, the ICC unit may have had malfunction. Repair or
replace it. Refer to ACS-59, "
SELF-DIAGNOSIS BY ICC SYS-
TEM DISPLAY WILL NOT RUN".
5. When self-diagnosis mode is started, DTC are shown on set vehicle speed indicator.
NOTE:
 DTC will disappear after 5 minutes.
 When more than one malfunction is detected, a maxi mum of 3 code numbers can be stored; the latest
malfunction will be displayed first.
6. Check ACS-35, "
Diagnostic Trouble Code (DTC) Chart", and repair or replace if necessary.
7. After repair, erase DTC stored in the ICC unit.
PKIA9675E
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ACS-34
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS —
GENERAL DESCRIPTION
8. DTC 55 will be shown.
9. Turn ignition switch OFF to exit the diagnosis.
10. Perform ICC system running test (drive vehicle wit h ICC system ON), and make sure that ICC warning
lamp (Orange) does not illuminate.
Self-Diagnostic Erasing Method
1. Stop the vehicle and turn the ignition switch OFF.
2. Turn ignition switch ON and start self-diagnosis.
3. During self-diagnosis mode, press CANCEL switch 5 times, and DISTANCE switch 5 times in this order. NOTE:
 Press them within 10 seconds after pressing CANCEL switch at first.
 When operation is not completed within 10 seconds, start again from step 2 above.
4. DTC 55 will be shown. NOTE:
DTC of an existing malfunction will not be erased.
5. Turn ignition switch OFF to exit the diagnosis.
6. Perform ICC system running test (drive vehicle wit h ICC system ON), and make sure that ICC system
warning lamp (Orange) does not illuminate.
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ACS-36
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS FOR
SELF-DIAGNOSTIC ITEMS
DTC 11 CONTROL UNIT
INFOID:0000000001328826
1.PERFORM SELF-DIAGNOSIS OF ICC SYSTEM
1. Perform self-diagnosis of ICC system.
2. Check if any item other than “DTC 11 CONTRO L UNIT” is indicated on self-diagnosis display.
Is any indicated?
YES >> 1. Repair or replace applicable item. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> 1. Replace ICC unit.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
DTC 20 CAN COMM CIRCUITINFOID:0000000001328827
1.PERFORM SELF-DIAGNOSIS OF ICC SYSTEM
1. Turn ignition switch ON and wait for 2 second or more.
2. Check self-diagnosis of ICC system.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-14, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-35, "
CONSULT-III/GST Data Link Connector (DLC) Circuit".
92 ECM CIRCUIT ××××  ECM malfunction
 Accelerator pedal position sensor
malfunction
 ICC unit malfunction ACS-50
96 NP RANGE
×××  Park/neutral position switch har-
ness is open or shorted.
 Park/neutral position switch mal- function.
 TCM malfunction ACS-51
97 AT CIRCUIT
×××  TCM malfunctionACS-52
98 GEAR POSITION ×××  TCM malfunction
 AT turbine revolution sensor mal-
function
 AT vehicle speed sensor malfunc-
tion ACS-52
102 RADAR STAIN
×× ×  ICC sensor body window has con-
tamination. ACS-53
103 LASER SENSOR FAIL
×× ×  ICC sensor internal malfunctionACS-53
104 LASER AIMING INCMP ×× ×  Laser beam aiming of ICC sensor
is not adjusted. ACS-54
107 LASER COMM FAIL
×× ×  CAN data received by ICC sensor
is strange (from ICC unit, combina-
tion meter or ECM). ACS-54
109 LASER HIGH TEMP
×× ×  Temperature around ICC sensor is
excessively high. ACS-54
DTC
No. CONSULT-III
screen terms ICC
system
warning lamp Fail-safe
Malfunctions detected where... Refer-
ence
page
Vehicle-
to-
vehicle
distance control mode Conven-
tional
(fixed
speed) cruise
control mode Brake as-
sist (with
preview
function)
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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-37
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DTC 31 POWER SUPPLY CIR, DT C 34 POWER SUPPLY CIR 2INFOID:0000000001328828
1.CHECK CONNECTOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector, and connect it securely again.
3. Erase DTC and perform ICC running test. Then perform self-diagnosis of ICC system again.
Is malfunction indicated?
YES >> GO TO 2.
NO >> Poor connector connection 1. Check connector. (Check connector housing for disconnected, loose, bent, and collapsed ter-
minals. If any malfunction is detected, repair applicable part.)
2. Erase DTC and perform ICC running test. T hen perform self-diagnosis of ICC system again.
2.CHECK POWER SUPPLY CIRCUIT FOR ICC UNIT
1. Turn ignition switch ON.
2. Check voltage between ICC unit harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> 1. Repair ICC unit power supply harness. 2. Erase DTC and perform ICC syst em running test. Then perform self-diagnosis of ICC system
again.
3.CHECK GROUND CIRCUIT FOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector.
3. Check continuity between ICC unit harness connector and ground.
OK or NG
OK >> 1. Replace ICC unit. 2. Erase DTC and perform ICC syst em running test. Then perform self-diagnosis of ICC system
again.
NG >> 1. Repair ICC unit ground harness. 2. Erase DTC and perform ICC syst em running test. Then perform self-diagnosis of ICC system
again.
DTC 41 VHCL SPEED SE CIRCINFOID:0000000001328829
1.PERFORM SELF-DIAGNOSIS OF ICC SYSTEM
1. Perform self-diagnosis of ICC system.
2. Check if “DTC 43 ABS/TCS/VDC CIRC” or “DTC 20 CAN COMM CIRCUIT” other than “DTC 41 VHCL
SPEED SE CIRC” is indicated in self-diagnosis item in the display.
Is any indicated?
YES >> 1. Repair or replace applicable item.
ICC unit connector Te r m i n a l
Voltage (Approx.)
(+) ( −)
M89 33
Ground Battery voltage
42
SKIA1173E
ICC unit con-
nector Te r m i n a l
Ground Continuity
M88 19
Ye s
20
M89 46
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ACS-38
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS FOR
SELF-DIAGNOSTIC ITEMS
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> GO TO 2.
2.CHECK AT VEHICLE SPEED SENSOR
With “Data Monitor” of “ICC”, check “VHCL SPD AT” operates normally.
OK or NG
OK >> 1. Replace ICC unit. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG >> 1. Perform self-diagnosis of TCM. 2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
DTC 43 ABS/TCS/VDC CIRCINFOID:0000000001328830
1.PERFORM SELF-DIAGNOSIS OF ICC SYSTEM
1. Perform self-diagnosis of ICC system.
2. Check if “DTC 20 CAN COMM CIRCUIT” other than “D TC 43 ABS/TCS/VDC CIRC” is indicated in self-
diagnosis item in the display.
Is it indicated?
YES >> 1. Repair or replace applicable item. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> GO TO 2.
2.PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
1. Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to BRC-26, "
Self-Diagnosis".
2. Check if malfunction is indicated.
Is malfunction indicated?
YES >> 1. Repair or replace applicable item. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> 1. Replace ICC unit. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
DTC 45 BRAKE SW/STOP L SWINFOID:0000000001328831
1.CHECK CONNECTOR FOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector, and connect it securely again.
3. Erase DTC and perform ICC system running test. T hen perform self-diagnosis of ICC system again.
Is malfunction indicated?
YES >> GO TO 2.
NO >> Poor connector connection 1. Check connector. (Check connector housing for disconnected, loose, bent, and collapsed ter-minals. If any malfunction is detected, repair applicable part.)
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
2.CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH
With “Data Monitor” of “ICC”, check if “STO P LAMP SW” and “BRAKE SW” are operated normally.
OK or NG
OK >> 1. Replace ICC unit. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG-1 >> “BRAKE SW” NG: GO TO 3.
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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-39
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NG-2 >> “STOP LAMP SW” NG: GO TO 5.
3.CHECK BRAKE SWITCH INSTALLATION AND ADJUSTMENT
Check brake switch for proper installation, and adjust the switch if necessary. Refer to BR-5
.
OK or NG
OK >> GO TO 4.
NG >> After adjustment, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
4.CHECK ICC BRAKE SWITCH
Check ICC brake switch. Refer to ACS-64, "
ICC Brake Switch and Stop Lamp Switch".
OK or NG
OK >> 1. Replace ICC unit. 2. Erase DTC and perform ICC syst em running test. Then perform self-diagnosis of ICC system
again.
NG >> 1. Replace ICC brake switch. 2. Erase DTC and perform ICC syst em running test. Then perform self-diagnosis of ICC system
again.
5.CHECK STOP LAMP ILLUMINATION
Check stop lamp illumination.
OK or NG
OK >> GO TO 6.
NG >> 1. Check stop lamp circuit. 2. After repairing, erase DTC and perform ICC system running test. Then perform self-diagnosisof ICC system again.
6.CHECK ICC BRAKE HOLD RELAY
1. Turn ignition switch OFF.
2. Remove ICC brake hold relay.
3. Check ICC brake hold relay. Refer to ACS-64, "
ICC Brake Hold Relay"
OK or NG
OK >> GO TO 7.
NG >> 1. Replace brake hold relay.
2. Erase DTC and perform ICC syst em running test. Then perform self-diagnosis of ICC system
again.
7.CHECK ICC BRAKE HOLD RELAY CIRCUIT
1. Disconnect ICC unit connector and stop lamp switch connector.
2. Check continuity between ICC unit harness connector and ICC brake hold relay harness connector.
3. Check continuity between ICC unit harness connector and ground.
OK or NG
OK >> GO TO 8.
NG >> 1. Repair harness between ICC unit and ICC brake hold relay. 2. Erase DTC and perform ICC syst em running test. Then perform self-diagnosis of ICC system
again.
8.CHECK STOP LAMP SWITCH CIRCUIT
ICC unit connector Terminal ICC brake hold relay
connector Terminal Continuity
M89 38 E14 7 Yes
ICC unit connector Terminal GroundContinuity
M89 38 No
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