Groun cable INFINITI FX35 2005 Service Manual

ACS-38
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Revision: 2005 July 2005 FX
SELF-DIAGNOSIS BY ICC SYSTEM DISPLAY WILL NOT RUN
Possible Irregular Condition
1. CHECK FUSES
Check that any of the fuses is blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2. CHECK ICC SYSTEM DISPLAY
1. Turn ignition switch ON.
2. Check if all displays illuminate.
Do all displays illuminate?
YES >> GO TO 3.
NO >> GO TO 6.
PKIB4144E
Open or short lines Symptoms Malfunction causes
ICC unit power supply malfunction No voltage supply from ignition switch Fuse blown
Harness open
Harness shorted
Ground cable not connected Harness open Harness shorted
ICC steering switch malfunction No signal transmitted Harness open Harness shorted
Spiral cable open
Spiral cable shorted
Switch or ECM malfunction
CAN communication system malfunction Signal not transmitted Harness open Harness shorted
CAN communication outside the standard.
Combination meter system malfunction Indication not possible Indicator display malfunction ICC system display segments disappear.
ICC unit malfunction ICC unit internal malfunction.
Unit Power source Fuse No.
ICC unit Ignition switch (ON) 12
Battery 35

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-43
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DTC 20 CAN COMM CIRCUITAKS00C8P
1. CHECK CAN COMMUNICATION
With CONSULT-II
1. Perform self-diagnosis.
2. Print self-diagnostic result.
>> After printing self-diagnostic result, go to “CAN system”. Refer to LAN-5, "
Precautions When
Using CONSULT-II" .
DTC 31 POWER SUPPLY CIR, DTC 34 POWER SUPPLY CIR 2AKS00C8Q
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 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 running test. Then perform self-diagnosis of ICC system again.
2. CHECK POWER SUPPLY CIRCUIT FOR ICC UNIT
1. Turn ignition switch ON.
2. Check voltage between ICC unit harness connector M89 termi- nals 33 (G/R), 42 (G/R) and ground.
OK or NG
OK >> GO TO 3.
NG >> 1. Repair ICC unit power supply harness.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
33 (G/R) – Ground : Battery voltage
42 (G/R) – Ground : Battery voltage
SKIA1173E

ACS-44
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2005 July 2005 FX
3. CHECK GROUND CIRCUIT FOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector.
3. Check continuity between ICC unit harness connector M88 ter- minals 19 (B), 20 (B) and ground.
4. Check continuity between ICC unit harness connector M89 ter- minal 46 (B) 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 ICC unit ground harness. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 41 VHCL SPEED SE CIRCAKS00C8R
1. CHECK ICC UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “DTC 43 ABS/TCS/VDC CIRC” or “DTC 20 CAN COMM CIRCUIT” other than “DTC 41 VHCL SPEED SE CIRC” 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 AT VEHICLE SPEED SENSOR
With CONSULT-II
With “DATA MONITOR”, check “VHCL SPD AT” operates normally. Refer to ACS-32, "
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 >> 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.
19 (B) – Ground : Continuity should exist.
20 (B) – Ground : Continuity should exist.
46 (B) – Ground : Continuity should exist.
SKIA6650E

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-47
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Revision: 2005 July 2005 FX
7. CHECK ICC BRAKE HOLD RELAY CIRCUIT
1. Disconnect ICC unit connector and stop lamp switch connector.
2. Check continuity between ICC unit harness connector M89 ter- minal 38 (P/B) and ICC brake hold relay harness connector E14
terminal 7 (P).
3. Check continuity between ICC unit harness connector M89 ter- minal 38 (P/B) and ground.
OK or NG
OK >> GO TO 8.
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.
8. CHECK STOP LAMP SWITCH CIRCUIT
Check continuity between ICC unit harness connector M89 terminal
38 (P/B) and stop lamp switch harness connector E210 terminal 2
(P).
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 ICC unit and stop lamp switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 46 OPERATION SW CIRCAKS007I0
1. CHECK CONNECTOR FOR ECM
1. Turn ignition switch OFF.
2. Disconnect ECM 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 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 ICC STEERING SWITCH
Check ICC steering switch. Refer to ACS-71, "
ICC Steering Switch" .
OK or NG
OK >> GO TO 3.
NG >> 1. Replace ICC steering switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
38 (P/B) – 7 (P) : Continuity should exist.
38 (P/B) – Ground : Continuity should not exist.
PKIA9907E
38 (P/B) – 2 (P) : Continuity should exist.
PKIB4163E

ACS-48
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2005 July 2005 FX
3. CHECK ICC STEERING SWITCH SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM connector and spiral cable connector.
3. Check continuity between spiral cable harness connector M15 terminals 33 (B/W), 34 (G/Y) and ECM harness connector M90
terminals 82 (B/W), 99 (G/Y).
4. Check continuity between spiral cable harness connector M15 terminals 33 (B/W), 34 (G/Y) and ground.
OK or NG
OK >> GO TO 4.
NG >> 1. Repair harness between ECM and spiral cable.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
4. CHECK SPIRAL CABLE
Check continuity between spiral cable (on vehicle) M15 terminals 33,
34 and spiral cable (on switch) M203 terminals 14, 15.
OK or NG
OK >> 1. Perform ECM self-diagnosis. 2. After repairing or replacing applicable item, erase DTC and perform ICC system running test. Then per-
form self-diagnosis of ICC system again.
NG >> 1. Replace spiral cable. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 61 PRESS SEN CIRCUITAKS00C8U
1. CHECK CONNECTOR BRAKE PRESSURE SENSOR AND ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect brake pressure sensor 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.
33 (B/W) – 82 (B/W) : Continuity should exist.
34 (G/Y) – 99 (G/Y) : Continuity should exist.
PKIB4164E
33 (B/W) – Ground : Continuity should not exist.
34 (G/Y) – Ground : Continuity should not exist.
PKIB4165E
33 – 15 : Continuity should exist.
34 – 14 : Continuity should exist.
PKIB4166E

ACS-50
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2005 July 2005 FX
DTC 62 BOOSTER SOL/V CIRCUITAKS00C8V
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 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 >> 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 BOOST SOLENOID
Check boost solenoid. Refer to ACS-71, "
Boost Solenoid" .
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 >> Boost solenoid malfunction 1. Replace brake booster.
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

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-51
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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

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-53
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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

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-59
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18. CHECK ICC UNIT STANDARD VOLTAGE
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 M89 terminal 29 (SB) 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 CIRCUITAKS00C90
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.
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.
29 (SB) – Ground : Approx. 0 V (during active test)
SKIA1200E

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