2008 INFINITI FX35 Brake System

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 — — —
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ACS-30
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS —
GENERAL DESCRIPTION
WORK SUPPORT
Cause of Auto-Cancel
Display Item List
NOTE:
Last five cancel (system cancel) causes are displayed.
SELF DIAGNOSTIC RESULT
For details, refer to ACS-35, "Diagnostic Trouble Code (DTC) Chart".
DATA MONITOR
×: Applicable
Work Support  Monitors aiming direction to facilitate laser beam aiming operation.
 Indicates causes of automatic cancellation of the ICC system.
Ecu Identification Displays part number of ICC unit. Test mode Function
Operation Function
CAUSE OF AUTO-CANCEL Indicates causes of automatic cancellation of the ICC system.
LASER BEAM ADJUST Outputs laser beam, calculates dislocation of the beam, and indicates adjustment direction.
For details, refer to
ACS-14
.
Cause of cancellation Description
OPERATING WIPER Windshield wipers were operated at HI or LO speed operation.
OPERATING ABS ABS func tion was operated.
OPERATING TCS TCS function was operated.
OPERATING VDC VDC function was operated.
OPE SW VOLT CIRC Outside the standard control switch input voltage was detected.
ECM CIRCUIT ECM did not permit ICC operation.
LASER SUN BEAM Intense light such as sunlight entered ICC sensor light sensing part.
LASER TEMP Temperature around ICC sensor became low.
OP SW DOUBLE TOUCH ICC steering switches were pressed at the same time.
WHL SPD ELEC NOISE Wheel speed sensor signal caught electromagnetic noise.
VDC/TCS OFF SW VDC OFF switch was pressed.
WHEEL SPD UNMATCH Wheel speed became different from AT vehicle speed.
TIRE SLIP Wheel slipped.
PKB SW ON Parking brake is applied.
IGN LOW VOLT Power supply voltage became low.
SNOW MODE SW Snow mode switch was pressed.
NO RECORD —
Monitored Item [unit] ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM
MENU Description
VHCL SPEED SE
[km/h] or [mph] ××× Indicates vehicle speed calculated from ICC unit through CAN
communication [ABS actuator and
electric unit (control unit)
transmits wheel speed sensor signal through CAN communica-
tion].
SET VHCL SPD
[km/h] or [mph] ××
Indicates set vehicle speed memorized in ICC unit.
THRTL OPENING
[%] ××× Indicates throttle angle read from ICC unit through CAN commu-
nication (ECM transmits throttle angle through CAN communica-
tion).
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ACS-32
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS —
GENERAL DESCRIPTION
ACTIVE TEST
CAUTION:
 Never perform the active test while driving.
 Active test cannot be started while I CC system warning indicator illuminates.
ICC BUZZER 1
 Touch “ON” and “OFF” to check that ICC warni ng chime operates as in the following chart.
METER LAMP
 Start engine.
 Touch “ON” and “OFF” to check that ICC system display operates as in the following chart.
STOP LAMP
 Touch “ON” and “OFF” to check that stop la mp operates as in the following chart.
BOOSTER SOL/V 3
 Start engine.
 Touch any of “MODE 1”, “MODE 2”, “MODE 3” to che ck that following operation condition is caused by oper-
ating monitor and brake pedal.
 “START” is displayed 10 seconds after operation start. (Active test is completed.)
Self-Diagnostic FunctionINFOID:0000000001328824
WITH CONSULT-III
NP RANGE SW
[On/Off] ×× Indicates PNP switch signal read from ICC unit through CAN
communication (TCM transmits PNP switch signal through CAN
communication).
DISTANCE ×NOTE:
This item is displayed, but cannot monitor.
RELATIVE SPD ×NOTE:
This item is displayed, but cannot monitor.
STP LMP DRIVE
[On/Off] ××
Indicates [On/Off] status of brake hold relay drive output.
TURN SIGNAL ×× NOTE:
This item is displayed, but cannot monitor.
Monitored Item [unit]
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM
MENU Description
BUZZER O/P ON OFF
Buzzer sound Beep Not activated
METER LAMP ON OFF
ICC system display Full illumination OFF
STP LMP DRIVE ON OFF
Stop lamp Lamp ON Lamp OFF
PKIA9821E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-35
< SERVICE INFORMATION > [ICC]
C
D
E
F
G H
I
J
L
M A
B
ACS
N
O P
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Trouble Code (DTC) ChartINFOID:0000000001328825
×: Applicable
DTC
No. CONSULT-III
screen terms ICC
system
warning lamp Fail-safe
Malfunctions detected where... Refer-
ence
page
Ve h i c l e -
to-
vehicle
distance control mode Conven-
tional
(fixed
speed) cruise
control mode Brake as-
sist (with
preview
function)
11 CONTROL UNIT ××××  ICC unit internal malfunctionACS-36
20 CAN COMM CIRCUIT ××××  ICC unit detected CAN communi-
cation malfunction. ACS-36
31 POWER SUPPLY CIR
××××  ICC unit power supply voltage is
excessively low (less than 8 V). ACS-37
34 POWER SUPPLY CIR2
××××  ICC unit power supply voltage is
excessively high (more than 19 V). ACS-37
41 VHCL SPEED SE CIRC
××××  Wheel sensor malfunction.
 ABS actuator and electric unit
(control unit) malfunction
 AT vehicle speed sensor malfunc- tion
TCM malfunction ACS-37
43 ABS/TCS/VDC CIRC
××××  VDC/TCS/ABS system malfunc-
tion ACS-38
45 BRAKE SW/STOP L SW
××××  Brake and stop lamp switch har-
ness is open or shorted.
 Brake and stop lamp switch is ON
or stuck to OFF.
 Brake and stop lamp switch is stuck to ON. ACS-38
46 OPERATION SW CIRC
×××  ICC steering switch harness or spi-
ral cable is open or shorted.
 ICC steering switch malfunction ACS-40
61 PRESS SEN CIRCUIT
×× ×  Brake pressure sensor harness is
open or shorted.
 Brake pressure sensor malfunction
 Brake pressure sensor input circuit malfunction ACS-41
62
BOOSTER SOL/V
CIRCUIT ×× ×  Solenoid harness is open or short-
ed.
 Solenoid is open.
 Solenoid drive circuit malfunction ACS-42
63 RELEASE SW CIRCUIT
××××  Release switch harness is open or
shorted.
 Release switch malfunction
 Release switch input circuit mal- function ACS-43
65 PRESSURE CONTROL
×× ×  Booster malfunctionACS-45
74 LASER BEAM OFF CNTR ×× ×  Laser beam of ICC sensor is off the
aiming point. ACS-45
90 STOP LAMP RLY FIX
×× ×  Normally open terminal of stop
lamp relay is stuck. ACS-46
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-39
< SERVICE INFORMATION > [ICC]
C
D
E
F
G H
I
J
L
M A
B
ACS
N
O P
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
PKIA9907E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-41
< SERVICE INFORMATION > [ICC]
C
D
E
F
G H
I
J
L
M A
B
ACS
N
O P
4. Check continuity between spiral cable harness connector and ground.
OK or NG
OK >> GO TO 4.
NG >> 1. Repair harness between ECM and spiral cable. 2. Erase DTC and perform I CC system running test.
Then perform self-diagnosis of ICC system again.
4.CHECK SPIRAL CABLE
Check continuity between spiral cable connector terminals.
OK or NG
OK >> 1. Perform self-diagnosis of ECM. 2. After repairing or replacing applicable item, eraseDTC and perform ICC syst em running test. Then
perform self-diagnosis of ICC system again.
NG >> 1. Replace spiral cable. 2. Erase DTC and perform ICC syst em running test. Then perform self-diagnosis of ICC system
again.
DTC 61 PRESS SEN CIRCUITINFOID:0000000001328833
1.CHECK CONNECTOR BRAKE PRES SURE SENSOR AND ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect brake pressure sensor connector and I CC unit connector, and connect them securely again.
3. Erase DTC and perform ICC system 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 syst em running test. Then perform self-diagnosis of ICC system
again.
2.CHECK HARNESS BETWEEN BRAKE PR ESSURE SENSOR AND ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector and brake pressure sensor con- nector.
3. Check continuity between brake pressure sensor harness con- nector and ICC unit harness connector.
Spiral cable
connector Te r m i n a l
Ground Continuity
M15 33
No
34
PKIB4165E
Spiral cable
connector Te r m i n a lSpiral cable
connector Terminal Continuity
M15 33
M203 14
Ye s
34 15
PKIB4166E
Brake pressure
sensor connector Te r m i n a lICC unit
connector Terminal Continuity
E142 1
M88 24
Ye s
217
38
SKIA6652E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C