fl sensor INFINITI QX56 2008 Factory Service Manual

CCS
DTC 74 LASER BEAM OFF CNTRCCS-31
< COMPONENT DIAGNOSIS >
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DTC 74 LASER BEAM OFF CNTR
DTC 74 LASER BEAM OFF CNTRINFOID:0000000001744710
1.DIAGNOSTIC CHECK
1. Adjust laser beam aiming. Refer to CCS-5, "
LASER BEAM AIMING ADJUST MENT : Outline of Laser
Beam Aiming Adjustment Procedure". Erase DTC and perform ICC system running test. Refer to CCS-8,
"ACTION TEST : ICC System Running Test" .
2. Perform self-diagnosis of ICC system.
Is DTC 74 LASER BEAM OFF CNTR incidated?
YES >> • Replace ICC sensor and adjust laser beam aiming. Refer to CCS-71, "ICC Sensor" .
• Erase DTC and perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test".
NO >> Inspection end.
Revision: March 2010 2008 QX56

CCS
DTC 102 LASER STAINCCS-41
< COMPONENT DIAGNOSIS >
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DTC 102 LASER STAIN
DTC 102 LASER STAININFOID:0000000001744716
1.VISUAL INSPECTION (1)
Check that there is no cont amination and foreign material on ICC sensor body window.
Is the ICC sensor clean?
YES >> GO TO 2
NO >> • Clean ICC sensor. • Erase DTC and perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test".
2.VISUAL INSPECTION (2)
Check ICC sensor body window for cracks.
Is the ICC sensor window undamaged?
YES >> GO TO 3
NO >> • Replace ICC sensor and adjust laser beam. Refer to CCS-71, "
ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test".
3.ASK CUSTOMER FOR DRIVING CONDITIONS
1. Is there any trace of contamination or foreign material on ICC sensor?
2. Is there any possibility that vehicle was driven in snow or ICC sensor was frosted?
3. Is there any possibility that ICC sensor was fogged temporarily? (Front window glass may have also been fogged.)
Was the ICC sensor obstructed by normal conditions?
YES >> Explain system operation and parameters to customer. System may be operating normally.
NO >> • Replace ICC sensor and adjust laser beam aiming. Refer to CCS-71, "
ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test".
Revision: March 2010 2008 QX56

CCS-42
< COMPONENT DIAGNOSIS >
DTC 103 LASER SENSOR FAIL
DTC 103 LASER SENSOR FAIL
DTC 103 LASER SENSOR FAILINFOID:0000000001744717
1.DIAGNOSTIC CHECK
Perform self-diagonsis.
Are "DTC 11 CONTROL UNIT" or DTC 20 CAN COMM CIRCUIT" indicated in self diagnosis?
YES >> GO TO applicable item inspection. Refer to CCS-22, "DTC 11 CONTROL UNIT", and CCS-24,
"DTC 20 CAN COMM CIRCUIT".
NO >> • Replace ICC sensor and adjus t laser beam aiming. Refer to CCS-71, "
ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test".
Revision: March 2010 2008 QX56

CCS
DTC 104 LASER AIMING INCMPCCS-43
< COMPONENT DIAGNOSIS >
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DTC 104 LASER AIMING INCMP
DTC 104 LASER AIMING INCMPINFOID:0000000001744718
1.DIAGNOSTIC CHECK
1. Adjust laser beam aiming. Refer to CCS-5, "
LASER BEAM AIMING ADJUST MENT : Outline of Laser
Beam Aiming Adjustment Procedure". Erase DTC and perform ICC system running test. Refer to CCS-8,
"ACTION TEST : ICC System Running Test".
2. Perform self-diagnosis of ICC system.
Is "DTC 104 LASER AIMING INCMP" indicated?
YES >> • Replace ICC sensor and adjust laser beam aiming. Refer to CCS-71, "ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test".
NO >> Inspection end.
Revision: March 2010 2008 QX56

CCS-44
< COMPONENT DIAGNOSIS >
DTC 107 LASER COMM FAIL
DTC 107 LASER COMM FAIL
DTC 107 LASER COMM FAILINFOID:0000000001744719
1.DIAGNOSTIC CHECK
Perform self-diagnosis?
Is "DTC 11 CONTROL UNIT" or "DTC 20 CAN COMM CIRCUIT" indicated?
YES >> GO TO applicable item inspection. Refer to CCS-22, "DTC 11 CONTROL UNIT", or CCS-24,
"DTC 20 CAN COMM CIRCUIT".
NO >> • Replace ICC sensor and adjus t laser beam aiming. Refer to CCS-71, "
ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test".
Revision: March 2010 2008 QX56

CCS
DTC109 LASER HIGH TEMPCCS-45
< COMPONENT DIAGNOSIS >
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DTC109 LASER HIGH TEMP
DTC 109 LASER HIGH TEMPINFOID:0000000001744720
1.CHECK SYMPTOM
Inspect engine cooling system.
Did the engine overheat?
YES >> • Repair cooling system. • Erase DTC and perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test". Then perform self-diagnosis of ICC system again.
NO >> • Replace ICC sensor and adjust laser beam aiming. Refer to CCS-71, "
ICC Sensor".
• Erase DTC, then perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC Sys-
tem Running Test". Then perform self-diagnosis of ICC system again.
Revision: March 2010 2008 QX56

CCS
ICC UNITCCS-55
< ECU DIAGNOSIS >
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Diagnostic Trouble Code (DTC) ChartINFOID:0000000001757410
× :Applicable
DTC
No. CONSULT-III screen terms ICC sys-
tem
warning lamp Fail-safe
Malfunctions detected where... Refer-
ence
page
Veh ic le-
to-vehi-cle dis-
tance
control mode Conven-
tional
(fixed
speed) cruise
control mode Brake as-
sist (with
preview
function)
11 CONTROL UNIT ×××× • ICC unit internal malfunctionCCS-22
12 VDC CONTROL UNIT ×××× • VDC malfunction
• Brake booster signal harness is
open or shorted CCS-23
20 CAN COMM CIRCUIT
×××× • ICC unit detected CAN communi-
cation malfunction CCS-24
31 POWER SUPPLY CIR1
×××× • ICC unit power supply voltage is
excessively low (less than 8V) CCS-25
34 POWER SUPPLY CIR2
×××× • ICC unit power supply voltage is
excessively high. CCS-25
41 VHCL SPEED SE CIRC
×××× • Wheel sensor malfunction
• ABS actuator and electric unit
(control unit) malfunction
• A/T vehicle speed sensor mal-
function
•TCM malfunction CCS-26
43 VDC/TCS/ABS CIRC
×××× • VDC/TCS/ABS system malfunc-
tion CCS-27
45 BRAKE SW/ STOP L SW
×××× • ICC brake switch or stop lamp
switch harness is open or shorted
• ICC brake switch or stop lamp switch is stuck to OFF
• ICC brake switch or stop lamp switch is stuck to ON CCS-28
46 OPERATION SW CIRC
××× • ICC steering switch harness or
spiral cable is open or shorted
• ICC steering switch malfunction CCS-30
74 LASER BEAM OFF CNTR
××ו Laser beam of ICC sensor is off
the aiming point CCS-31
90 STOP LAMP RLY FIX
××ו Normally open terminal of stop
lamp relay is stuck CCS-32
92 ECM CIRCUIT
×××× •ECM malfunction
• Accelerator pedal position sensor
malfunction
• ICC unit malfunction CCS-37
96 NP RANGE
××× • Transmission range switch har-
ness is open or shorted
• Transmission range switch mal- function
•TCM malfunction CCS-38
97 AT CIRCUIT
××× •TCM malfunctionCCS-39
98 GEAR POSITION ××× •TCM malfunction
• A/T input speed sensor malfunc-
tion
• A/T vehicle speed sensor mal- function CCS-40
Revision: March 2010
2008 QX56

CCS-56
< ECU DIAGNOSIS >
ICC UNIT
NOTE: DTC 55 will display when no malfunction is detected.102 LASER STAIN
××ו ICC sensor body window has
contamination CCS-41
103 LASER SENSOR FAIL
×× × • ICC sensor internal malfunctionCCS-42
104 LASER AIMING INCMP ×× × • Laser beam aiming of ICC sensor
is not adjusted CCS-43
107 LASER COMM FAIL
×× × • CAN data received by ICC sensor
is strange (from ICC unit, combi-
nation meter or ECM) CCS-44
109 LASER HIGH TEMP
×× × • Temperature around ICC sensor
is excessively high CCS-45
DTC
No. CONSULT-III screen terms ICC sys-
tem
warning lamp Fail-safe
Malfunctions detected where... Refer-
ence
page
Vehicle-
to-vehi-cle dis-
tance
control mode Conven-
tional
(fixed
speed) cruise
control mode Brake as-
sist (with
preview
function)
Revision: March 2010 2008 QX56

CCS-64
< SYMPTOM DIAGNOSIS >
ICC SYSTEM FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD/ DETEC-TION ZONE IS SHORT
ICC SYSTEM FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD/
DETECTION ZONE IS SHORT
Diagnosis ProcedureINFOID:0000000001744728
The detection function may become disrupted in the following cases:
• When the reflector of the vehicle ahead is small or not clean enough to reflect the laser.
• When driving a road with extremely sharp corners.
• When the laser cannot detect the reflector of the v ehicle ahead as the vehicle ahead is passing a hill or
passing the peak.
1.VISUAL CHECK
1. Check ICC sensor body window for contamination and foreign materials.
Is the ICC sensor window clean and free of obstruction?
YES >> GO TO 2
NO >> If any contamination or foreign materials ar e found, remove them. Then perform ICC system run-
ning test. Refer to CCS-8, "
ACTION TEST : ICC System Running Test".
2.CHECK FUNCTION
1. After performing laser beam aiming adjustment, perform ICC system running test. Refer to CCS-8,
"ACTION TEST : ICC System Running Test". Check that preceding vehicle detection performance has
been improved.
Is the ICC system operating normally?
YES >> INSPECTION END.
NO >> • Replace ICC sensor and perform laser beam aiming adjustment. Refer to CCS-71, "
ICC Sen-
sor".
• Perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC System Running Test".
Revision: March 2010 2008 QX56

CCS
THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL
CCS-65
< SYMPTOM DIAGNOSIS >
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THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL
Diagnosis ProcedureINFOID:0000000001744729
1.VISUAL CHECK
With ignition switch turned ON (engine not started), che ck that all indicator lamps in ICC system display are
continuously lit. (Check for a missing segment in preceding vehicle detection display.)
Does the display operate normally?
YES >> GO TO 2
NO >> Check combination meter. Refer to MWI-24, "
Diagnosis Description".
2. VISUAL CHECK
Check ICC sensor window for contamination and foreign materials.
Is the ICC sensor window clean and free of obstruction?
YES >> If any contamination or foreign materials are found, remove them. Perform ICC system running
test. Refer to CCS-8, "
ACTION TEST : ICC System Running Test".
NO >> GO TO 3
3.VISUAL CHECK
Check ICC sensor window for cracks and scratches.
Is the ICC sensor window intact?
YES >> GO TO 4
NO >> • Replace ICC sensor and perform laser beam aiming adjustment. Refer to CCS-71, "
ICC Sen-
sor".
• Perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC System Running Test".
4.ADJUST ICC SENSOR
• After performing laser beam aiming adjustment, perform ICC system running test. Refer to CCS-8, "
ACTION
TEST : ICC System Running Test". Check that preceding vehicle detection performance has been improved.
Is the ICC system operating normally?
YES >> INSPECTION END.
NO >> • Replace ICC sensor and perform laser beam aiming adjustment. Refer to CCS-71, "
ICC Sen-
sor".
• Perform ICC system running test. Refer to CCS-8, "
ACTION TEST : ICC System Running Test".
Revision: March 2010 2008 QX56