2009 INFINITI QX56 Factory Service Manual

seat memory cabin filter service schedule trip computer snow chains checking oil

Page 705 of 4171

INFINITI QX56 2009 Factory Service Manual CCS-54
< ECU DIAGNOSIS >
ICC UNIT
Fail Safe
INFOID:0000000003776958
When a malfunction occurs in ICC system, a chime sounds a beep, the system is released and ICC system
warning lamp in combination me

Page 706 of 4171

INFINITI QX56 2009 Factory Service Manual CCS
ICC UNITCCS-55
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B
N P A
Diagnostic Trouble Code (DTC) ChartINFOID:0000000003776959
× :Applicable
DTC
No. CONSULT-III screen terms ICC sys-
tem
warning lam

CCS
ICC UNITCCS-55
< ECU DIAGNOSIS >
C
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G H
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K L
M B
N P A
Diagnostic Trouble Code (DTC) ChartINFOID:0000000003776959
× :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
×××• Laser beam of ICC sensor is off
the aiming point CCS-31
90 STOP LAMP RLY FIX
×××• 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
• Input speed sensor malfunction
• A/T vehicle speed sensor mal-
function CCS-40
102 LASER STAIN
×× × • ICC sensor body window has
contamination CCS-41
Revision: December 20092009 QX56

Page 707 of 4171

INFINITI QX56 2009 Factory Service Manual CCS-56
< ECU DIAGNOSIS >
ICC UNIT
NOTE: DTC 55 will display when no malfunction is detected.103 LASER SENSOR FAIL
×××• ICC sensor internal malfunction CCS-42
104 LASER AIMING INCMP ×× × • La

Page 708 of 4171

INFINITI QX56 2009 Factory Service Manual CCS
INTELLIGENT CRUISE CONTROL SYSTEM SYMPTOMSCCS-57
< SYMPTOM DIAGNOSIS >
C
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SYMPTOM DIAGNOSIS
INTELLIGENT CRUISE CONTROL SYSTEM SYMPTOMS
Symptom ChartINFOID:000000000377696

Page 709 of 4171

INFINITI QX56 2009 Factory Service Manual CCS-58
< SYMPTOM DIAGNOSIS >
MAIN SWITCH DOES NOT TURN ON, MAIN SWITCH DOES NOT TURN OFF
MAIN SWITCH DOES NOT TURN ON, MAIN SWITCH DOES NOT TURN
OFF
Diagnosis ProcedureINFOID:0000000003776961
NOTE:
�

Page 710 of 4171

INFINITI QX56 2009 Factory Service Manual CCS
ICC SYSTEM CANNOT BE SET (MAIN SWITCH TURNS ON/OFF)
CCS-59
< SYMPTOM DIAGNOSIS >
C
D E
F
G H
I
J
K L
M B
N P A
ICC SYSTEM CANNOT BE SET (M AIN SWITCH TURNS ON/OFF)
Diagnosis ProcedureINFOID:000000

Page 711 of 4171

INFINITI QX56 2009 Factory Service Manual CCS-60
< SYMPTOM DIAGNOSIS >
ICC STEERING SWITCH (OTHER THAN MAIN SWITCH) DOES NOT FUNCTION
ICC STEERING SWITCH (OTHER THAN MAIN SWITCH) DOES NOT
FUNCTION
Diagnosis ProcedureINFOID:0000000003776963
RE

Page 712 of 4171

INFINITI QX56 2009 Factory Service Manual CCS
ICC SYSTEM DOES NOT CANCEL WHEN A/T SELECTOR LEVER SETS ON "N"
CCS-61
< SYMPTOM DIAGNOSIS >
C
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F
G H
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K L
M B
N P A
ICC SYSTEM DOES NOT CANCEL WHEN A/T SELECTOR LEVER SETS
ON "N"
Diagnosis

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