ignition INFINITI FX35 2005 Owner's Manual

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-51
[ICC]
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Revision: 2005 July 2005 FX
DTC 63 RELEASE SW CIRCUITAKS00C8W
1. CHECK SOLENOID/RELEASE SWITCH AND ICC UNIT CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect brake booster connector and ICC unit connector, and connect them securely again.
3. Erase DTC and 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 HARNESS SOLENOID/RELEASE SWITCH AND ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect brake booster connector and ICC unit connector.
3. Check continuity between ICC unit harness connector M88 ter- minals 6 (GY/L), 15 (LG/R), 22 (G/Y) and brake booster harness
connector E54 terminals 1 (R), 3 (LG), 2 (G).
4. Check continuity between ICC unit harness connector M88 ter- minals 6 (GY/L), 15 (LG/R), 22 (G/Y) and ground.
OK or NG
OK >> GO TO 3.
NG >> 1. Repair harness between brake booster and ICC unit.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3. CHECK RELEASE SWITCH POWER SUPPLY CIRCUIT
1. Connect ICC unit connector.
2. Turn ignition switch ON.
3. Check voltage between ICC unit harness connector M88 termi- nal 6 (GY/L) and ground.
OK or NG
OK >> GO TO 4.
NG >> 1. Replace ICC unit.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
6 (GY/L) – 1 (R) : Continuity should exist.
15 (LG/R) – 3 (LG) : Continuity should exist.
22 (G/Y) – 2 (G) : Continuity should exist.
SKIA6655E
6 (GY/L) – Ground : Continuity should not exist.
15 (LG/R) – Ground : Continuity should not exist.
22 (G/Y) – Ground : Continuity should not exist.
PKIB1446E
6 (GY/L) – Ground : Approx. 10 V
SKIA6656E

ACS-52
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2005 July 2005 FX
4. CHECK RELEASE SWITCH
1. Turn ignition switch OFF.
2. Check release switch. Refer to ACS-72, "
Release 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 >> Release switch malfunction 1. Replace brake booster.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 65 PRESSURE CONTROLAKS00C8X
1. OPERATION CHECK
Check foot brake pedal operates normally.
OK or NG
OK >> GO TO 2.
NG >> 1. Check brake circuit.
2. After repairing, erase DTC and perform active test (BOOSTER SOL/V3) with CONSULT-II. Then perform self-diagnosis of ICC system again.
2. CHECK BOOST SOLENOID
Check boost solenoid. Refer to ACS-71, "
Boost Solenoid" .
OK or NG
OK >> GO TO 3.
NG >> Boost solenoid malfunction
1. Replace brake booster.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-53
[ICC]
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ACS
Revision: 2005 July 2005 FX
3. CHECK HARNESS BETWEEN SOLENOID/RELEASE SWITCH AND ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector and brake booster connector.
3. Check continuity between ICC unit harness connector M88 ter- minals 10 (B/R), 12 (L/W) and brake booster harness connector
E54 terminals 4 (B), 6 (L).
4. Check continuity between ICC unit harness connector M88 ter- minals 10 (B/R), 12 (L/W) 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. Repair harness between brake booster and ICC unit. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 74 LASER BEAM OFF CNTRAKS00C8Y
1. DIAGNOSTIC CHECK
1. Adjust laser beam aiming. Then erase DTC, and perform ICC system running test.
2. Perform self-diagnosis of ICC system.
3. Check if “DTC 74 LASER BEAM OFF CNTR” 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 90 STOP LAMP RLY FIXAKS00CAT
1. CHECK CONNECTOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector, and connect it securely again.
3. Erase DTC and 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 termi- nals. 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.
10 (B/R) – 4 (B) : Continuity should exist.
12 (L/W) – 6 (L) : Continuity should exist.
PKIB4147E
10 (B/R) – Ground : Continuity should not exist.
12 (L/W) – Ground : Continuity should not exist.
PKIB4148E

ACS-54
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2005 July 2005 FX
2. CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH
With CONSULT-II
With “DATA MONITOR”, check that “STOP LAMP SW” and “BRAKE SW” operate normally. Refer to ACS-32,
"DATA MONITOR" .
OK or NG
OK >> GO TO 12.
NG >>

BRAKE SW: GO TO 3.

STOP LAMP SW: GO TO 9.
3. BRAKE SWITCH INSTALLATION AND ADJUSTMENT INSPECTION
Check brake switch for proper installation, and adjust the switch if necessary. Refer to BR-6, "
BRAKE PEDAL"
.
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 AND STOP LAMP SWITCH
Check ICC brake switch and stop lamp switch. Refer to ACS-71, "
ICC Brake Switch and Stop Lamp Switch" .
OK or NG
OK >> GO TO 5.
NG >> 1. Replace ICC brake switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
5. CHECK ICC BRAKE HOLD RELAY
1. Turn ignition switch OFF.
2. Disconnect ICC brake hold relay.
3. Check continuity between ICC brake hold relay terminals 3 and 4.
OK or NG
OK >> GO TO 6.
NG >> 1. Replace ICC brake hold relay.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3 – 4 : Continuity should exist.
SKIA6658E

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-55
[ICC]
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Revision: 2005 July 2005 FX
6. CHECK HARNESS BETWEEN ICC UNIT AND ICC BRAKE HOLD RELAY
1. Disconnect ICC brake switch connector, ECM connector and ICC unit connector.
2. Check continuity between ICC unit harness connector M89 ter- minal 29 (SB) and ICC brake hold relay harness connector E14
terminal 4 (SB).
3. Check continuity between ICC unit harness connector M89 ter- minal 29 (SB) and ground.
OK or NG
OK >> GO TO 7.
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.
7. CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ICC BRAKE SWITCH
1. Check continuity between ICC brake hold relay harness connec- tor E14 terminal 3 (L) and ICC brake switch harness connector
E209 terminal 2 (L).
2. Check continuity between ICC brake hold relay harness connec- tor E14 terminal 3 (L) and ground.
OK or NG
OK >> GO TO 8.
NG >> 1. Repair harness between ICC brake hold relay and ICC brake switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
8. CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between ICC brake switch harness connector E209 terminal 1 (Y) 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. Repair or replace harness or fuse. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
29 (SB) – 4 (SB) : Continuity should exist.
29 (SB) – Ground : Continuity should not exist.
SKIA5980E
3 (L) – 2 (L) : Continuity should exist.
3 (L) – Ground : Continuity should not exist.
PKIB4167E
1 (Y) – Ground : Battery voltage
PKIB4168E

ACS-56
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2005 July 2005 FX
9. CHECK STOP LAMP ILLUMINATION
1. Turn ignition switch OFF.
2. Disconnect ICC brake hold relay.
3. Check stop lamp circuit.
OK or NG
OK >> GO TO 10.
NG >> After repairing, erase DTC and perform ICC system running test. Then perform self-diagnosis of
ICC system again.
10. CHECK ICC BRAKE HOLD RELAY CIRCUIT
1. Connect ICC brake hold relay connector.
2. Disconnect stop lamp switch connector.
3. When brake pedal is not depressed, make sure that stop lamp does not illuminate.
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 11.
11 . CHECK ICC BRAKE HOLD RELAY
1. Disconnect ICC brake hold relay.
2. Check continuity between ICC brake hold relay terminal 6 and terminal 7.
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 ICC brake hold relay. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
6 – 7 : Continuity should not exist.
SKIA6659E

ACS-58
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2005 July 2005 FX
15. CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT
Check voltage between ICC brake hold relay harness connector E14
terminal 6 (G/Y) and ground.
OK or NG
OK >> GO TO 16.
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.
16. CHECK HARNESS BETWEEN ICC UNIT AND ICC BRAKE HOLD RELAY
1. Turn ignition switch OFF.
2. Disconnect ICC unit and ICC brake hold relay connector.
3. Check continuity between ICC unit harness connector M89 ter- minal 38 (P/B) and ICC brake hold relay harness connector E14
terminal 7 (P).
4. Check continuity between ICC unit harness connector M89 ter- minal 38 (P/B) and ground.
OK or NG
OK >> GO TO 17.
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.
17. 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 18.
NG >> 1. Replace ICC brake hold relay.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
6 (G/Y) – Ground : Battery voltage
SKIA1198E
38 (P/B) – 7 (P) : Continuity should exist.
38 (P/B) – Ground : Continuity should not exist.
SKIA6663E

ACS-60
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2005 July 2005 FX
DTC 96 NP RANGEAKS00C91
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-32, "
DATA MONITOR"
.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN ICC UNIT AND TCM
1. Turn ignition switch OFF.
2. Disconnect ICC unit harness connector and A/T assembly har- ness connector.
3. Check continuity between ICC unit harness connector M88 ter- minal 7 (GY/R) and A/T assembly harness connector F44 termi-
nal 9 (GY).
4. Check continuity between ICC unit harness connector M88 ter- minal 7 (GY/R) 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 9 , "
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.
7 (GY/R) – 9 (GY) : Continuity should exist.
7 (GY/R) – Ground : Continuity should not exist.
PKIB1447E

ACS-66
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2005 July 2005 FX
Symptom 1: MAIN Switch Does Not Turn ON*1 , MAIN Switch Does Not Turn
OFF
*2AKS00C99
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-43, "DTC 20 CAN COMM CIRCUIT" .
NO >> Refer to ACS-47, "
DTC 46 OPERATION SW CIRC" .
Symptom 2: ICC System Cannot Be Set (MAIN Switch Turns ON/OFF)AKS00C9A
The ICC cannot be set in the following cases.

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

When the A/T selector lever is in gears other than ‘D’.

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-47, "DTC 46 OPERATION SW CIRC" .

“VHCL SPD UNMATCH”: Refer to ACS-44, "DTC 41 VHCL SPEED SE CIRC" .

“IGN LOW VOLT”: Refer to ACS-43, "DTC 31 POWER SUPPLY CIR, DTC 34 POWER SUP-
PLY CIR 2" .
NG >> GO TO 2.

ACS-70
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2005 July 2005 FX
2. CHECK FUNCTION
After adjusting ICC sensor beam aiming, perform ICC system running test. Check that preceding vehicle
detection performance has been improved.
OK or NG
OK >> INSPECTION END
NG >> 1. Replace ICC sensor, and perform laser beam aiming adjustment.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
Symptom 8: The System Does Not Detect the Vehicle Ahead at AllAKS00C9F
1. VISUAL CHECK 1
With ignition switch turned ON (engine not started), check that all indicator lamps in ICC system display are
continuously lit. (Check for a missing segment in preceding vehicle detection display.)
OK or NG
OK >> GO TO 2.
NG >> Check for combination meter. Refer to DI-15, "
Trouble Diagnosis" .
2. VISUAL CHECK 2
Check ICC sensor body window for contamination and foreign materials.
OK or NG
OK >> If any contamination or foreign materials are found, remove them. Perform ICC system running test.
NG >> GO TO 3.
3. VISUAL CHECK 3
Check ICC sensor body window for cracks and scratches.
OK or NG
OK >> GO TO 4.
NG >> 1. Replace ICC sensor, and perform laser beam aiming adjustment.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
4. ADJUST ICC SENSOR
After adjusting ICC sensor beam aiming, perform ICC system running test. Check that preceding vehicle
detection performance has been improved.
OK or NG
OK >> INSPECTION END
NG >> 1. Replace ICC sensor, and perform laser beam aiming adjustment.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.