2004 INFINITI FX35 brake system

ACS-28
[ICC]
TERMINALS AND REFERENCE VALUE
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for ICC SensorAKS006YR
33 (G/R)
42 (G/R)
GroundIgnition switch ON or
STARTON — Battery voltage (Approx.12)
38 (P/G)Stop lamp switch
(normally open) ONDepress the brake pedal. Battery voltage (Approx.12)
Release the brake pedal. Approx. 0
39
(G/OR)DDL-RX — — —
40
(PU/W)parking brake signal ONParking brake is ONPower supply voltage
(Approx. 12)
Parking brake is OFF Approx. 0
47 (W/R)Stop lamp drive output sig-
nalONBrake operating with ICC system Battery voltage (Approx.12)
Brake not operating with ICC sys-
temApprox. 0 terminals
(wire color)
itemcondition
voltage (V)
+-ignition
switchoperation
terminals
(wire color)
itemcondition
voltage (V)
+–ignition
switchoperation
1 (Y)
GroundICC sensor power ON — Battery voltage (Approx.12)
3 (L) CAN H ON — —
6 (R) CAN L ON — —
4 (B) Ground ON — Approx. 0

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ACS-31
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
6. Touch any of “WORK SUPPORT”, “SELF-DIAG RESULTS”,
“DATA MONITOR”, “CAN DIAG SUPPORT MNTR”, “ACTIVE
TEST” and “ECU PART NUMBER” on selection screen.
WORK SUPPORT
Work Item
Cause of Auto-Cancel
1. Touch “WORK SUPPORT” on the selection screen, refer to
ACS-30, "
CONSULT-II INSPECTION PROCEDURE" .
2. Touch “CAUSE OF AUTO-CANCEL” on the selection screen.
3. Cause of automatic cancellation screen will be shown.
CAUTION:
Last five cancel (system cancel) causes are displayed.
Display Item List
Laser Beam Adjust
For details, refer to ACS-12, "LASER BEAM AIMING ADJUSTMENT" .
SELF-DIAGNOSTIC RESULTS
For details, refer to ACS-40, "Diagnostic Trouble Code (DTC) Chart" .
PKIA8867E
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.
SKIA6191E
Cause of cancellation Description
OPERATING WIPER Windshield wipers were operated at HI or LO speed operation.
OPERATING ABS ABS function 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.
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.
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.
NO RECORD —

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
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ACS
Revision: 2004 November 2004 FX35/FX45
ACTIVE TEST
Caution

Do not perform the active test while driving.

Active test cannot be started while ICC system warning indicator illuminates.
1. Touch “ACTIVE TEST” on selection screenACS-30, "
CONSULT-II INSPECTION PROCEDURE" .
2. Touch any of “ICC BUZZER 1”, “METER LAMP”, “STOP LAMP”
and “BOOSTER SOL/V 3” on selection screen.
3. Touch necessary item and “START”.
4. Active test screen will be shown.
IDLE SW
[ON/OFF]××Indicates [ON/OFF] status of idle switch read by ICC unit
via CAN communication (ECM transmits ON/OFF status
via CAN communication).
GEAR
[1, 2, 3, 4, 5]××Indicates AT gear position read by ICC unit via CAN com-
munication (TCM transmits gear position via CAN commu-
nication).
BUZZER O/P
[ON/OFF] ×Indicates [ON/OFF] status of ICC war output.
ICC WARNING×NOTE:
This item is displayed, but cannot monitoring.
VHCL SPD AT
[km/h] or [mph]
×Indicates vehicle speed calculated from AT vehicle speed
sensor by ICC unit via CAN communication (TCM trans-
mits AT vehicle speed sensor signal via CAN communica-
tion).
PRESS SENS
[bar]×××Indicates brake fluid pressure value calculated from signal
voltage of pressure sensor.
PRESS SENS 2×NOTE:
This item is displayed, but cannot monitoring.
D RANGE SW
[ON/OFF]××Indicates [ON/OFF] status of “D” position read by ICC unit
via CAN communication (TCM transmits ON/OFF condi-
tion of “D” position via CAN communication).
AT OD OFF
[ON/OFF]×Indicates [ON/OFF] status of OD cancel output under con-
trol.
NP RANGE SW
[ON/OFF]××Indicates PNP switch signal read by ICC unit via CAN
communication. TCM transmits PNP switch signal via CAN
communication.
DISTANCE×NOTE:
This item is displayed, but cannot monitoring.
RELATIVE SPD×NOTE:
This item is displayed, but cannot monitoring.
STP LMP DRIVE
[ON/OFF]××Indicates [ON/OFF] status of brake hold relay drive output. Monitored Item [unit]MAIN SIG-
NALSECU
INPUT
SIGNALSSELEC-
TION
FROM
MENUDescription
SKIA6195E

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ACS-35
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
METER LAMP

Start engine.

Touch “ON” and “OFF” to check that ICC system display oper-
ates as in the following chart.
STOP LAMP

Touch “ON” and “OFF” to check that stop lamp operates as in
the following chart.
BOOSTER SOL/V 3

Touch any of “MODE 1”, “MODE 2”, “MODE 3” to check that fol-
lowing operation condition is caused by operating monitor and
brake pedal.

“START” is displayed 10 seconds after operation start. (Active
test is completed.)
Self-Diagnostic FunctionAKS006YV
WITH CONSULT-II
1. Go to operation check after asking the customer for symptom information. Refer to ACS-9, "ACTION
TEST" .
2. Stop vehicle, turn ignition switch OFF, then connect CONSULT-II and CONSULT-II CONVERTER to data
link connector.
3. With engine started, touch “START”, “ICC”, “SELF-DIAG RESULTS” on CONSULT-II screen in this order.
METER LAMP ON OFF
ICC system display Full illumination OFF
SKIA1231E
STP LMP DRIVE ON OFF
Stop lamp Lamp ON Lamp OFF
SKIA1232E
SKIA1233E
PKIA0363J

ACS-40
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2004 November 2004 FX35/FX45
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:00000
Diagnostic Trouble Code (DTC) ChartAKS006YW
×:Applicable
DTC
No.CONSULT-II screen termsICC sys-
tem
warning
lampFail-safe
Malfunctions detected where...Refer-
ence
page Ve h ic le -
to-vehi-
cle dis-
tance
control
modeConven-
tional
(fixed
speed)
cruise
control
modeBrake
assist
(with pre-
view
function)
11 CONTROL UNIT××××

ICC unit internal malfunctionACS-41
20 CAN COMM CIRCUIT××××
ICC unit detected CAN communi-
cation malfunction.ACS-41
31 POWER SUPPLY CIR××××
ICC unit power supply voltage is
excessively low. (less than 8V)ACS-42
34 POWER SUPPLY CIR2××××
ICC unit power supply voltage is
excessively high.ACS-42
41 VHCL SPEED SE CIRC××××

Wheel sensor malfunction.

ABS actuator and electric unit
(control unit) malfunction

AT vehicle speed sensor mal-
function

TCM malfunctionACS-42
43 ABS/TCS/VDC CIRC××××
VDC/TCS/ABS system malfunc-
tionACS-43
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-43
46 OPERATION SW CIRC×××

ICC steering switch harness or
spiral cable is open or shorted.

ICC steering switch malfunctionACS-45
61 PRESS SEN CIRCUIT×× ×

Brake pressure sensor harness is
open or shorted.

Brake pressure sensor malfunc-
tion

Brake pressure sensor input cir-
cuit malfunctionACS-46
62 BOOSTER SOL/V CIRCUIT×× ×

Solenoid harness is open or
shorted.

Solenoid is open.

Solenoid drive circuit malfunctionACS-47
63 RELEASE SW CIRCUIT××××

Release switch harness is open
or shorted.

Release switch malfunction

Release switch input circuit mal-
functionACS-48
65 PRESSURE CONTROL×× ×
Booster malfunctionACS-49
74 LASER BEAM OFF CNTR×× ×
Laser beam of ICC sensor is off
the aiming point.ACS-49

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-41
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
DTC 11 CONTROL UNITAKS006YX
1. DIAGNOSTIC CHECK
1. Are any items other than “DTC 11 CONTROL UNIT” indicated on self-diagnosis display?
YES or NO
YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform
self-diagnosis of ICC system again.
NO >> Replace ICC unit. Erase DTC and perform ICC system running test. Then perform self-diagnosis
of ICC system again.
DTC 20 CAN COMM CIRCUITAKS006YY
1. CHECK CAN COMMUNICATION
With CONSULT-II
1. Perform self-diagnosis.
2. Print self-diagnostic result.
>> After printing self-diagnostic result, go to “CAN system”. Refer to LAN-4, "
Precautions When
Using CONSULT-II" .
90 STOP LAMP RLY FIX×× ×
Normally open terminal of stop
lamp relay is stuck.ACS-50
92 ECM CIRCUIT××××

ECM malfunction

Accelerator pedal position sensor
malfunction

ICC unit malfunctionACS-54
96 NP RANGE×××

Park/neutral position switch har-
ness is open or shorted.

Park/neutral position switch mal-
function.

TCM malfunctionACS-55
97 AT CIRCUIT×××
TCM malfunctionACS-56
98 GEAR POSITION×××

TCM malfunction

AT turbine revolution sensor mal-
function

AT vehicle speed sensor mal-
functionACS-56
102 RADAR STAIN×× ×
ICC sensor body window has
contamination.ACS-57
103 LASER SENSOR FAIL×× ×
ICC sensor internal malfunctionACS-58
104 LASER AIMING INCMP×× ×
Laser beam aiming of ICC sensor
is not adjusted.ACS-58
107 LASER COMM FAIL×× ×

CAN data received by ICC sen-
sor is strange (from ICC unit,
combination meter or ECM).ACS-58
109 LASER HIGH TEMP×× ×
Temperature around ICC sensor
is excessively high.ACS-58
DTC
No.CONSULT-II screen termsICC sys-
tem
warning
lampFail-safe
Malfunctions detected where...Refer-
ence
page Vehicle-
to-vehi-
cle dis-
tance
control
modeConven-
tional
(fixed
speed)
cruise
control
modeBrake
assist
(with pre-
view
function)

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-43
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
2. CHECK AT VEHICLE SPEED SENSOR
With CONSULT-II

With data monitor, check “VHCL SPD AT”operate normally. Refer to ACS-32, "DATA MONITOR" .
OK or NG
OK >> Replace ICC unit. Erase DTC and perform ICC system running test. Then perform self-diagnosis
of ICC system again.
NG >>

Check TCM.

After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of
ICC system again.
DTC 43 ABS/TCS/VDC CIRCAKS006Z2
1. DIAGNOSIS CHECK 1
With CONSULT-II

Perform self-diagnosis. Is “CAN COMM CIRCUIT” indicated?
YES or NO
YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform
self-diagnosis of ICC system again.
NO >> GO TO 2.
2. DIAGNOSIS CHECK 2
With CONSULT-II

Perform self-diagnosis of ABS actuator and electric unit (control unit). Is malfunction indicated?
YES or NO
YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform
self-diagnosis of ICC system again.
NO >> Replace ICC unit. Erase DTC and perform ICC system running test. Then perform self-diagnosis
of ICC system again.
DTC 45 BRAKE SW/STOP L SWAKS006Z3
1. CHECK CONNECTOR FOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector, and connect it securely again. Then erase DTC. After that, perform self-
diagnosis of ICC system again.
OK or NG
OK >>
Poor connector connection.

Check connector. (Check connector housing for disconnected, loose, bent, and collapsed ter-
minals. If any malfunction is detected, repair applicable part.) After repair, erase DTC, and per-
form ICC system running test. Then perform self-diagnosis of ICC system again.
NG >> GO TO 2.
2. CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH
With CONSULT-II

With data monitor, check if “STOP LAMP SW” and “BRAKE SW” are operated normally. Refer to ACS-32,
"DATA MONITOR" .
OK or NG
OK >> Replace ICC unit. Erase DTC and perform ICC system running test. Then perform self-diagnosis
of ICC system again.
NG >>

BRAKE SW: GO TO 3.

STOP LAMP SW: GO TO 5.

ACS-44
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2004 November 2004 FX35/FX45
3. BRAKE SWITCH INSTALLATION AND ADJUSTMENT INSPECTION

Check brake switch for proper installation and adjust if necessary. Refer to BR-6, "BRAKE PEDAL" in BR.
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-65, "ICC Brake Switch and Stop Lamp Switch" .
OK or NG
OK >> Replace ICC unit. Erase DTC and perform ICC system running test. Then perform self-diagnosis
of ICC system again.
NG >> Replace ICC brake switch. Erase DTC and perform ICC system 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 >>

Check stop lamp circuit.

After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of
ICC system again.
6. CHECK ICC BRAKE HOLD RELAY
1. Turn ignition switch OFF.
2. Remove ICC brake hold relay.
3. Check continuity between ICC brake hold relay.
OK or NG
OK >> GO TO 7.
NG >> Replace brake hold relay. Erase DTC and perform ICC
system running test. Then perform self-diagnosis of ICC
system again. 6 - 7 Continuity should not exist.
3 - 4 Continuity should exist.
SKIA6651E