2005 INFINITI QX4 Factory Service Manual

technical specifications airbag parking brake lumbar support fuse box location radio

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INFINITI QX4 2005 Factory Service Manual ACS-48
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: October 20052005 QX56
17. CHECK ICC UNIT STANDARD VOLTAGE
With CONSULT-II
1. Connect stop lamp switch connector.
2. While performing

ACS-48
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: October 20052005 QX56
17. CHECK ICC UNIT STANDARD VOLTAGE
With CONSULT-II
1. Connect stop lamp switch connector.
2. While performing active test (STOP LAMP: STP LMP DRIVE
ON) with CONSULT-II, check voltage between ICC unit harness
connector B17 terminal 29 (BR/W) and ground.
OK or NG
OK >> Replace ICC unit. Refer to ACS-60, "ICC Unit" . Erase
DTC and perform ICC system running test. Refer to
ACS-9, "
ICC System Running Test" . Then perform self-
diagnosis of ICC system again.
NG >> Replace stop lamp switch. Erase DTC and perform ICC
system running test. Refer to ACS-9, "
ICC System Running Test" . Then perform self-diagnosis of
ICC system again.
DTC 92 ECM CIRCUITEKS00BMA
1. DIAGNOSIS CHECK 1
With CONSULT-II
Perform self-diagnosis with CONSULT-II. Is “CAN COMM CIRCUIT” indicated?
YES or NO
YES >> Repair or replace as necessary. Erase DTC and perform ICC system running test. Refer to ACS-
9, "ICC System Running Test" . Then perform self-diagnosis of ICC system again.
NO >> GO TO 2.
2. DIAGNOSIS CHECK 2
With CONSULT-II
Perform ECM self-diagnosis with CONSULT-II. Is malfunction indicated?
YES or NO
YES >> Repair or replace as necessary. Erase DTC and perform ICC system running test. Refer to ACS-
9, "ICC System Running Test" . Then perform self-diagnosis of ICC system again.
NO >> Replace ICC unit. Refer to ACS-60, "
ICC Unit" . Erase DTC and perform ICC system running test.
Refer to ACS-9, "
ICC System Running Test" . Then perform self-diagnosis of ICC system again.
DTC 96 NP RANGEEKS00BMB
1. CHECK ICC UNIT CONNECTORS
1. Turn ignition switch OFF.
2. Disconnect ICC unit harness connectors and connect them securely again. Erase DTC, then perform self-
diagnosis of ICC system again.
OK or NG
OK >> GO TO 2.
NG >>
Poor connector connection.
Check connector. Check connector housing for disconnected, loose, bent, and collapsed termi-
nals. If any malfunction is detected, repair as necessary. Erase DTC and perform ICC system
running test. Refer to ACS-9, "
ICC System Running Test" . Then perform self-diagnosis of ICC
system again. 29 - Ground Approx. 0V (during active test)
SKIA1200E

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INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
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2. CHECK NP RANGE SWITCH SIGNAL
With CONSULT-II
With data monitor, check that “N

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INFINITI QX4 2005 Factory Service Manual ACS-50
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: October 20052005 QX56
3. CHECK GEAR SHIFT POSITION
Check that gear positions are correct in A/T.
OK or NG
OK >> GO TO 5.
NG >> GO TO

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INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-51
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3. ASK CUSTOMER FOR DRIVING CONDITIONS
1. Is there any trace of contamination or fo

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
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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.)
Ye s o r N o
Yes >> Explain system operation and parameters to customer. System may be operating normally.
No >>
Replace ICC sensor and adjust laser beam aiming. Refer to ACS-60, "ICC Sensor" .
Erase DTC and perform ICC system running test. Refer to ACS-9, "ICC System Running Test"
. Then perform self-diagnosis of ICC system again.
DTC 103 LASER SENSOR FAILEKS00BMF
1. DIAGNOSTIC CHECK
Are “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” item indicated in self-diagnosis display
item?
YES or NO
YES >> GO TO applicable item inspection. Refer to ACS-37, "DTC 11 CONTROL UNIT" , and ACS-38,
"DTC 20 CAN COMM CIRCUIT" .
NO >>
Replace ICC sensor and adjust laser beam aiming. Refer to ACS-60, "ICC Sensor" .
Erase DTC and perform ICC system running test. Refer to ACS-9, "ICC System Running Test"
. Then perform self-diagnosis of ICC system again.
DTC 104 LASER AIMING INCMPEKS00BMG
1. DIAGNOSTIC CHECK
1. Adjust laser beam aiming. Refer to ACS-12, "
LASER BEAM AIMING ADJUSTMENT" . Erase DTC and
perform ICC system running test. Refer to ACS-9, "
ICC System Running Test" .
2. Perform self-diagnosis of ICC system. Is “DTC 104 LASER AIMING INCMP” indicated?
CAUTION:
Ensure that laser beam aiming apparatus is set up accurately.
YES or NO
YES >>Replace ICC sensor and adjust laser beam aiming. Refer to ACS-60, "ICC Sensor" .
Erase DTC and perform ICC system running test. Refer to ACS-9, "ICC System Running Test"
. Then perform self-diagnosis of ICC system again.
NO >> Inspection end.
DTC 107 LASER COMM FAILEKS00BMH
1. DIAGNOSTIC CHECK
Is “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” indicated in the self-diagnosis display item?
YES or NO
YES >> GO TO applicable item inspection. Refer to ACS-37, "DTC 11 CONTROL UNIT" , or ACS-38,
"DTC 20 CAN COMM CIRCUIT" .
NO >>
Replace ICC sensor and adjust laser beam aiming. Refer to ACS-60, "ICC Sensor" .
Erase DTC and perform ICC system running test. Refer to ACS-9, "ICC System Running Test"
. Then perform self-diagnosis of ICC system again.

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INFINITI QX4 2005 Factory Service Manual ACS-52
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: October 20052005 QX56
DTC 109 LASER HIGH TEMPEKS00BMI
1. CHECK SYMPTOM
Is cooling system malfunctioning?
YES or NO
YES >>Repair coo

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INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
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TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
Symptom ChartEKS00BMJ
Symptoms Reference page
OperationON

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INFINITI QX4 2005 Factory Service Manual ACS-54
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: October 20052005 QX56
Symptom 1: ON/OFF Switch Does Not Switch ON*1 , ON/OFF Switch Does Not
Switch OFF
*2EKS00BMK
NOTE:
*1: The ICC system disp

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INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
ACS-55
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2. PERFORM SELF-DIAGNOSIS
With CONSULT-II
1. Perform CONSULT-II self-diagnosis to check for malf

TROUBLE DIAGNOSIS FOR SYMPTOMS
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2. PERFORM SELF-DIAGNOSIS
With CONSULT-II
1. Perform CONSULT-II self-diagnosis to check for malfunctioning items.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace as necessary, erase DTC. Perform ICC system running test. Refer to ACS-9,
"ICC System Running Test" . Then perform self-diagnosis of ICC system again.
3. CHECK SWITCHES AND VEHICLE SPEED SIGNAL
With CONSULT-II
1. With "DATA MONITOR" on the CONSULT-II, check that the following switches and vehicle speed signal
operate normally.
A: VHCL SPEED SE B: NP RANGE SW
C: BRAKE SW D: SET/COAST SW
OK or NG
OK >> Replace ICC unit and erase DTC. Refer to ACS-60, "ICC Unit" . Perform ICC system running test.
Refer to ACS-9, "
ICC System Running Test" . Then perform self-diagnosis of ICC system again.
NG >>
A: Refer to ACS-39, "DTC 41 VHCL SPEED SE CIRC" .
B: Refer to ACS-56, "Symptom 4: The ICC System Is Not Cancelled When the Gear Is in ‘N’" .
C: Refer to ACS-40, "DTC 45 BRAKE SW/STOP L SW" .
D: Refer to ACS-41, "DTC 46 OPERATION SW CIRC" .
Symptom 3: The ICC System Cannot Be Operated by the CANCEL Switch,
ACCEL/RES Switch, or DISTANCE Switch
EKS00BMM
RESUME will not function in the following cases:
When ON/OFF switch is pressed once after the ICC system was ON.
When the vehicle speed is less than 32 km/h (20 MPH).
1. CHECK SWITCH
With CONSULT-II
1. With "DATA MONITOR" on the CONSULT-II, check that the following switches operate normally.
“RESUME/ACC SW”, “CANCEL SW”, “DISTANCE ADJ”.
OK or NG
OK >> Replace ICC unit and erase DTC. Refer to ACS-60, "ICC Unit" . Perform ICC system running test.
Refer to ACS-9, "
ICC System Running Test" . Then perform self-diagnosis of ICC system again.
NG >> GO TO 2.
2. CHECK DIAGNOSIS
With CONSULT-II
Perform self-diagnosis with CONSULT-II. Is “CAN COMM CIRCUIT” indicated?
YES or NO
YES >> Refer to ACS-38, "DTC 20 CAN COMM CIRCUIT" .
NO >> Refer to ACS-41, "
DTC 46 OPERATION SW CIRC" .

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