Ac system INFINITI FX35 2006 Workshop Manual

ACS-60
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 December 2006 FX35/FX45
15. CHECK ICC UNIT STANDARD VOLTAGE
With CONSULT-II
1. Connect ICC unit connector and stop lamp switch connector.
2. Perform “ACTIVE TEST”(“STOP LAMP”:“STP LMP DRIVE ON”) with CONSULT-II, check voltage between ICC unit harness con-
nector and ground.
OK or NG
OK >> GO TO 16.
NG >> 1. Replace ICC unit.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
16. CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT
Check voltage between ICC brake hold relay harness connector and
ground.
OK or NG
OK >> GO TO 17.
NG >> 1. Repair or replace harness or fuse.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
17. CHECK HARNESS BETWEEN ICC UNIT AND ICC BRAKE HOLD RELAY
1. Turn ignition switch OFF.
2. Disconnect ICC unit.
3. Check continuity between ICC unit harness connector and ICC brake hold relay harness connector.
4. Check continuity between ICC unit harness connector and ground.
OK or NG
OK >> GO TO 18.
NG >> 1. Repair harness between ICC unit and ICC brake hold relay.
2. Erase DTC and perform ICC system running test. Then, perform self-diagnosis of ICC system again.
ICC unit
connector Terminal
Condition Voltage
(Approx.)
(+) ( −)
M89 47 Ground During “ACTIVE TEST” 12 V
SKIA3075E
ICC brake hold relay con- nector Terminal
Voltage
(Approx.)
(+) ( −)
E14 6 Ground Battery voltage
SKIA1198E
ICC unit
connector Te r m i n a l ICC brake hold
relay connector Terminal Continuity
M89 38 E14 7 Yes
ICC unit
connector Te r m i n a l
Ground Continuity
M89 38 No
SKIA6663E

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-61
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Revision: 2006 December 2006 FX35/FX45
18. CHECK ICC BRAKE HOLD RELAY
With CONSULT-II
1. Connect ICC unit connector and ICC brake hold relay.
2. Disconnect stop lamp switch connector.
3. Perform “ACTIVE TEST” (“STOP LAMP”) with CONSULT-II, and make sure that stop lamp is illuminated.
OK or NG
OK >> GO TO 19.
NG >> 1. Replace ICC brake hold relay.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
19. CHECK ICC UNIT STANDARD VOLTAGE
With CONSULT-II
1. Connect stop lamp switch connector.
2. Perform “ACTIVE TEST” (“STOP LAMP”:“STP LMP DRIVE ON”) with CONSULT-II, check voltage between ICC unit harness
connector and ground.
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. Replace stop lamp switch. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 92 ECM CIRCUITNKS003FH
1. CHECK ICC UNIT SELF-DIAGNOSIS
With CONSULT-II
1. Perform self-diagnosis with CONSULT-II.
2. Check if “DTC 20 CAN COMM CIRCUIT” other than “DTC 92 ECM CIRCUIT” 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.
ICC unit
connector Terminal
Condition Voltage
(Approx.)
(+) ( −)
M89 29 Ground During “ACTIVE
TEST” 0 V
SKIA1200E

ACS-62
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 December 2006 FX35/FX45
2. CHECK ECM SELF-DIAGNOSIS
With CONSULT-II
1. Perform ECM self-diagnosis with CONSULT-II.
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 96 NP RANGENKS003FI
1. CHECK CONNECTOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector, and connect them securely again.
3. Erase DTC and then 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 system running test. Then perform self-diagnosis of ICC system again.
2. CHECK NP RANGE SWITCH SIGNAL
With CONSULT-II
With “DATA MONITOR”, check that “NP RANGE SW” operates normally. Refer to ACS-33, "
DATA MONITOR"
.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-63
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Revision: 2006 December 2006 FX35/FX45
3. CHECK HARNESS BETWEEN ICC UNIT AND TCM
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector and A/T assembly connector.
3. Check continuity between ICC unit harness connector and A/T assembly harness connector.
4. Check continuity between ICC unit harness connector and ground.
OK or NG
OK >> GO TO 4.
NG >> 1. Repair harness between ICC unit and A/T assembly.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
4. CHECK TCM START SIGNAL CIRCUIT
Check TCM start signal. Refer to AT- 1 0 7 , "
DTC P0615 START SIGNAL CIRCUIT" .
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. Repair or replace damaged parts.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
5. CHECK SHIFT POSITION SIGNAL
With CONSULT-II
With TCM diagnosis, check that shift operates normally. Refer to AT- 11 2 , "
DTC P0705 PARK/NEUTRAL
POSITION SWITCH" .
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 TCM self-diagnosis. 2. After repairing or replacing applicable item, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
ICC unit
connector TerminalA/T assembly
connector Terminal Continuity
M88 7 F44 9 Yes
ICC unit
connector Terminal
Ground Continuity
M88 7 No
PKIB1447E

ACS-64
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 December 2006 FX35/FX45
DTC 97 AT CIRCUITNKS003FJ
1. CHECK AT CIRCUIT
With CONSULT-II
With TCM diagnosis, check that shift operates normally. Refer to AT- 11 2 , "
DTC P0705 PARK/NEUTRAL
POSITION SWITCH" .
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 TCM self-diagnosis. 2. After repairing or replacing applicable item, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 98 GEAR POSITIONNKS003FK
1. CHECK ICC UNIT SELF-DIAGNOSIS
With CONSULT-II
1. Perform self-diagnosis.
2. Check if “DTC 43 ABS/TCS/VDC CIRC” or “DTC 41 VHCL SPEED SE CIRC” other than “DTC 98 GEAR POSITION” is indicated in self-diagnosis item in the 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 >> GO TO 2.
2. CHECK VEHICLE SPEED SIGNAL
With CONSULT-II
With “DATA MONITOR”, check that “VHCL SPEED SE” is normal.
OK or NG
OK >> GO TO 3.
NG >> 1. Replace ICC unit.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3. CHECK SHIFT GEAR POSITION
Check that gear positions are correct in A/T.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. CHECK TCM GEAR POSITION SIGNAL
With CONSULT-II
With TCM “DATA MONITOR” with CONSULT-II, check that gear positions are correct.
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 TCM self-diagnosis.
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-65
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Revision: 2006 December 2006 FX35/FX45
5. CHECK TCM TURBINE ROTATION
With CONSULT-II
With TCM diagnosis, check that turbine rpm is normal. Refer to AT- 11 6 , "
DTC P0717 TURBINE REVOLUTION
SENSOR" .
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 TCM self-diagnosis. 2. After repairing or replacing applicable item, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 102 RADAR STAINNKS003FL
1. VISUAL INSPECTION 1
Check that there is no contamination and foreign material on ICC sensor body window.
OK or NG
OK >> GO TO 2.
NG >> 1. If any, remove them.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
2. VISUAL INSPECTION 2
Check ICC sensor body window for cracks.
OK or NG
OK >> GO TO 3.
NG >> 1. Replace ICC sensor, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3. ASKING COMPLAINTS
1. Ask if there is any trace of contamination or foreign material on ICC sensor.
2. Ask if vehicle was driven in snow or ICC sensor was frosted.
3. Ask if ICC sensor was fogged temporarily. (Front window glass may have also tended to be fogged.)
Is there any symptom?
YES >> Explain difference in displays between contamination detection result and current indication to customer, and tell them “This is not malfunction”.
NO >> 1. Replace ICC sensor, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 103 LASER SENSOR FAILNKS003FM
1. CHECK ICC UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” item other then “DTC 103 LASER SENSOR FAIL” is indicated in self-diagnosis item in the display.
Is any indicated?
YES >> Go to applicable item inspection. Refer to ACS-44, "DTC 11 CONTROL UNIT" , and ACS-44,
"DTC 20 CAN COMM CIRCUIT" .
NO >> 1. Replace ICC sensor, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

ACS-66
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 December 2006 FX35/FX45
DTC 104 LASER AIMING INCMPNKS003FN
1. CHECK DIAGNOSIS
1. Adjust laser beam aiming. Erase DTC and perform ICC system running test.
2. After that, perform self-diagnosis of ICC system.
3. Check if “DTC 104 LASER AIMING INCMP” is indicated.
Is it indicated?
YES >> 1. Replace ICC sensor, and adjust laser beam aiming. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO >> INSPECTION END
DTC 107 LASER COMM FAILNKS003FO
1. CHECK ICC UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” item other than “DTC 107 LASER COMM FAIL” is indicated in the self-diagnosis item in the display.
Is any indicated?
YES >> Go to applicable item inspection. Refer to ACS-44, "DTC 11 CONTROL UNIT" , and ACS-44,
"DTC 20 CAN COMM CIRCUIT" .
NO >> 1. Replace ICC sensor, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 109 LASER HIGH TEMPNKS003FP
1. CHECK SYMPTOM
Check if cooling system malfunctions.
Does it malfunction?
YES >> 1. Repair cooling system. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO >> 1. Replace ICC sensor, and adjust laser beam aiming. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

TROUBLE DIAGNOSIS FOR SYMPTOMS ACS-67
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Revision: 2006 December 2006 FX35/FX45
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
Symptom ChartNKS003FQ
Symptoms Reference page
Operation MAIN switch does not switch ON.
Symptom 1
ACS-68
MAIN switch does not switch OFF. Symptom 1
ACS-68
Cruise does not function for setting (powering functions). Symptom 2
ACS-68
CANCEL switch does not function. Symptom 3
ACS-69
Resume does not function. Symptom 3
ACS-69
Set speed does not increase. Symptom 3
ACS-69
Set distance to the vehicle ahead cannot be changed. Symptom 3
ACS-69
ICC is not cancelled when the A/T selector lever is in other
than “D” and “M” position. Symptom 4
ACS-70
Display/Chime ICC system display does not appear.
Check combination meter. Refer to
DI-16, "Trouble Diagnosis" .
Chime does not function. Symptom 5
ACS-70
Control Driving force is hunting. Symptom 6
ACS-71
Function to detect
the vehicle ahead System frequently cannot detect the vehicle ahead.
Symptom 7
ACS-71
Distance to detect the vehicle ahead is short. Symptom 7
ACS-71
System misidentifies a vehicle even though there is no vehi-
cle ahead.

Refer to ACS-14, "LASER BEAM AIMING
ADJUSTMENT" .

Refer to ACS-11, "ICC System Running Test"
.
System misidentifies a vehicle in the next lane.

Refer to ACS-14, "LASER BEAM AIMING
ADJUSTMENT" .

Refer to ACS-11, "ICC System Running Test"
.
System does not detect a vehicle at all. Symptom 8
ACS-72

ACS-68
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 December 2006 FX35/FX45
Symptom 1: MAIN Switch Does Not Turn ON*1 , MAIN Switch Does Not Turn
OFF
*2NKS003FR
NOTE:

*1: The ICC system display in the combination meter does not illuminate.

*2: The ICC system display in the combination meter remains powered.
1. CHECK MAIN SWITCH
With CONSULT-II
With “DATA MONITOR”, check that MAIN switch operates normally.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK CONNECTOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector.
3. Check connector housing for disconnected, loose, bent, and collapsed terminals.
OK or NG
OK >> GO TO 3.
NG >> Poor connector connection
1. Repair ICC unit connector.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3. CHECK ICC UNIT SELF-DIAGNOSIS
With CONSULT-II
1. Perform self-diagnosis with CONSULT-II.
2. Check if “DTC 20 CAN COMM CIRCUIT” is indicated.
Is it indicated?
YES >> Refer to ACS-44, "DTC 20 CAN COMM CIRCUIT" .
NO >> Refer to ACS-48, "
DTC 46 OPERATION SW CIRC" .
Symptom 2: ICC System Cannot Be Set (MAIN Switch Turns ON/OFF)NKS003FS
The ICC cannot be set in the following cases.

When the vehicle speed is not in range of approx. 40 km/h (25 MPH) to 144 km/h (90 MPH).

When the A/T selector lever is in gears other than “D” and “M” position.

While the brake is in operation.
1. CHECK CAUSE OF AUTOMATIC CANCELLATION
With CONSULT-II
With “CAUSE OF AUTO-CANCEL” in “WORK SUPPORT”, check if any cause of cancellation exists.
OK or NG
OK >> Cancel with appropriate cause, and go to specified diagnosis.

“OPE SW VOLT CIRC”: Refer to ACS-48, "DTC 46 OPERATION SW CIRC" .

“VHCL SPD UNMATCH”: Refer to ACS-45, "DTC 41 VHCL SPEED SE CIRC" .

“IGN LOW VOLT”: Refer to ACS-44, "DTC 31 POWER SUPPLY CIR, DTC 34 POWER SUP-
PLY CIR 2" .
NG >> GO TO 2.

TROUBLE DIAGNOSIS FOR SYMPTOMS ACS-69
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Revision: 2006 December 2006 FX35/FX45
2. CHECK ICC UNIT SELF-DIAGNOSIS
With CONSULT-II
Perform CONSULT-II self-diagnosis to check for malfunctioning items.
OK or NG
OK >> GO TO 3.
NG >> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3. CHECK SWITCHES AND VEHICLE SPEED SIGNAL
With CONSULT-II
With “DATA MONITOR”, check that switches and vehicle speed signal operate normally. Refer to ACS-33,
"DATA MONITOR" .

VHCL SPEED SE

D RANGE SW

BRAKE SW

SET/COAST SW
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 >>

VHCL SPEED SE. Refer to ACS-45, "DTC 41 VHCL SPEED SE CIRC" .

D RANGE SW. Refer to ACS-70, "Symptom 4: ICC System Is Not Cancelled When the A/T
Selector Lever Is in Other Than “D” and “M” Position" .

BRAKE SW. Refer to ACS-46, "DTC 45 BRAKE SW/STOP L SW" .

SET/COAST SW. Refer to ACS-48, "DTC 46 OPERATION SW CIRC" .
Symptom 3: ICC System Cannot Be Operated by CANCEL Switch, RESUME/
ACCELERATE Switch or DISTANCE Switch
NKS003FT
RESUME does not function in the following cases.

When MAIN switch is turned off once.

When the vehicle speed is less than 40 km/h (25 MPH).
1. CHECK SWITCHES
With CONSULT-II
With “DATA MONITOR”, check that switches operate normally.
“RESUME/ACC SW”, “CANCEL SW”, “DISTANCE ADJ”. Refer to ACS-33, "
DATA MONITOR" .
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 >> GO TO 2.
2. CHECK ICC UNIT SELF-DIAGNOSIS
With CONSULT-II
1. Perform self-diagnosis with CONSULT-II.
2. Check if “DTC 20 CAN COMM CIRCUIT” is indicated.
Is it indicated?
YES >> Refer to ACS-44, "DTC 20 CAN COMM CIRCUIT" .
NO >> Refer to ACS-48, "
DTC 46 OPERATION SW CIRC" .