2004 INFINITI FX35 starter

TROUBLE DIAGNOSIS
AT-99
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Revision: 2004 November 2004 FX35/FX45
TCS GR/P KEEP (ON-OFF display) — — X
TCS SIGNAL 2 (ON-OFF display) — — X
TCS SIGNAL 1 (ON-OFF display) — — X
TCC SOLENOID (A) — X X
LINE PRES SOL (A) — X X
I/C SOLENOID (A) — X X
FR/B SOLENOID (A) — X X
D/C SOLENOID (A) — X X
HLR/C SOL (A) — X X
ON OFF SOL (ON-OFF display) — — X LC/B solenoid
TCC SOL MON (A) — — X
L/P SOL MON (A) — — X
I/C SOL MON (A) — — X
FR/B SOL MON (A) — — X
D/C SOL MON (A) — — X
HLR/C SOL MON (A) — — X
ONOFF SOL MON (ON-OFF display) — — X LC/B solenoid
P POSI IND (ON-OFF display) — — X
R POSI IND (ON-OFF display) — — X
N POSI IND (ON-OFF display) — — X
D POSI IND (ON-OFF display) — — X
4TH POSI IND (ON-OFF display) — — X
3RD POSI IND (ON-OFF display) — — X
2ND POSI IND (ON-OFF display) — — X
1ST POSI IND (ON-OFF display) — — X
MANU MODE IND (ON-OFF display) — — X
POWER M LAMP (ON-OFF display) — — X
F-SAFE IND/L (ON-OFF display) — — X
ATF WARN LAMP (ON-OFF display) — — X Not mounted but displayed
BACK-UP LAMP (ON-OFF display) — — X
STARTER RELAY (ON-OFF display) — — X
PNP SW3 MON (ON-OFF display) — — X
C/V CLB ID1 — — X
C/V CLB ID2 — — X
C/V CLB ID3 — — X
UNIT CLB ID1 — — X
UNIT CLB ID2 — — X
UNIT CLB ID3 — — X
TRGT GR RATIO — — X
TRGT PRES TCC (kPa) — — X
TRGT PRES L/P (kPa) — — XMonitored item (Unit)Monitor Item Selection
Remarks ECU
INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU

AT-108
DTC P0615 START SIGNAL CIRCUIT
Revision: 2004 November 2004 FX35/FX45
DTC P0615 START SIGNAL CIRCUITPFP:25230
DescriptionACS007AQ
Prohibits cranking other than at “P” or “N” position.
CONSULT-II Reference ValueACS007AR
On Board Diagnosis LogicACS007AS

This is not an OBD-II self-diagnostic item.

Diagnostic trouble code “STARTER RELAY/CIRC” with CONSULT-II or 14th judgement flicker without
CONSULT-II is detected when starter relay is switched “ON” other than at “P” or “N” position. (Or when
switched “OFF” at “P” or “N” position).
Possible CauseACS007AT

Harness or connectors
(Starter relay and TCM circuit is open or shorted.)

Starter relay circuit
DTC Confirmation ProcedureACS007AU
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF”
and wait at least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Vehicle start for at least 2 consecutive seconds.
5. If DTC is detected, go to AT- 11 0 , "
Diagnostic Procedure" .
Item name Condition Display value
STARTER RELAYSelector lever in N and P positions. ON
Selector lever in other positions. OFF
SAT014K

AT-110
DTC P0615 START SIGNAL CIRCUIT
Revision: 2004 November 2004 FX35/FX45
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic ProcedureACS007AW
1. CHECK STARTER RELAY
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II and check monitor “STARTER
RELAY” ON/OFF.
Without CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Check the voltage between the IPDM E/R connector and
ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING ITEM
Check the following items:

Starter relay, Refer to SC-10, "System Description" .

IPDM E/R, Refer to PG-18, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)" .

Disconnections or short-circuits in the harness between A/T assembly harness connector and IPDM E/R.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
TerminalWire
colorItem Condition Data (Approx.)
9GYStarter relaySelector lever in “N” and “ P” positions. Battery voltage
Selector lever in other positions. 0V
Item name Condition Display value
STARTER RELAYSelector lever in N and P positions. ON
Selector lever in other positions. OFF
PCIA0056E
Item ConnectorTerminal
(Wirer color)Shift position Voltage (Approx.)
Starter
relayE953
(GY)GroundN and P Battery voltage
R, D and M 0V
SCIA2103E

DTC P1815 MANUAL MODE SWITCH
AT-175
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Revision: 2004 November 2004 FX35/FX45
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic ProcedureACS007FH
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 9 4 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "TCM SELF-
DIAGNOSTIC PROCEDURE (NO TOOLS)" .
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 0 5 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK MANUAL MODE SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out ON/OFF switching action of the “MANU MODE
SW”,“NON M-MODE SW”, “UP SW LEVER”, “DOWN SW
LEVER”.
Without CONSULT-II
Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the
position mutually coincide when the selector lever is shifted to the “+ (up)” or “- (down)” side (1st ⇔ 5th gear).
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
TerminalWire
colorItem Condition Data (Approx.)
3 L CAN-H – –
8 R CAN-L – –
9GYStarter relaySelector lever in “N” and “P” positions. Battery voltage
Selector lever in other positions. 0V
Item name Condition Display value
MANU MODE SWManual shift gate position (neutral) ON
Other than the above OFF
NON M-MODE SWManual shift gate position OFF
Other than the above ON
UP SW LEVERSelector lever: + side ON
Other than the above OFF
DOWN SW LEVERSelector lever: - side ON
Other than the above OFF
SCIA4988E

TRANSMISSION ASSEMBLY
AT-267
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Revision: 2004 November 2004 FX35/FX45
10. Remove crankshaft position sensor (POS) from A/T assembly.
CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc. to get on the sensor's front
edge magnetic area.

Do not place in an area affected by magnetism.
11. Remove starter motor. Refer to SC-18, "
VQ35DE ENGINE
MODELS (2WD)" .
12. Remove fluid cooler tube.
13. Remove rear plate from converter housing part. Refer to EM-30,
"Removal and Installation" .
14. Remove rear cover plate. Refer to EM-30, "
Removal and Installation" .
15. Turn crankshaft, and remove the four tightening bolts for drive
plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
16. Support transmission assembly with a transmission jack.
CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
17. Remove engine rear member with power tool.
18. Remove air breather hose. Refer to AT- 2 6 4 , "
Removal and
Installation" .
19. Disconnect A/T assembly harness connector.
20. Remove A/T fluid charging pipe from transmission assembly.
21. Plug up openings such as the A/T fluid charging pipe hole, etc.
22. Remove bolts fixing transmission assembly to engine with power tool.
23. Remove transmission assembly from vehicle with a transmis-
sion jack.

Secure torque converter to prevent it from dropping.

Secure transmission assembly to a jack.
INSPECTION
Installation and Inspection of Torque Converter

After inserting a torque converter to a transmission, be sure to
check distance “A” to ensure it is within the reference value limit.
SCIA2155E
SCIA2288E
SCIA0499E
Distance “A”: 25.0 mm (0.98 in) or more
SAT017B

TRANSMISSION ASSEMBLY
AT-271
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Revision: 2004 November 2004 FX35/FX45
11. Remove crankshaft position sensor (POS) from A/T assembly.
CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc. to get on the sensor's front
edge magnetic area.

Do not place in an area affected by magnetism.
12. Remove starter motor. Refer to SC-19, "
VQ35DE ENGINE
MODELS (AWD)" or SC-17, "VK45DE ENGINE MODELS" .
13. Disconnect fluid cooler tube from transmission assembly.
14. Remove rear plate from converter housing part. Refer to EM-30,
"Removal and Installation" (for VQ35DE models) or EM-181,
"Removal and Installation" (for VK45DE models).
15. Turn crankshaft, and remove the four tightening bolts for drive
plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
16. Remove dynamic damper (for VQ35DE models). Refer to TF-
44, "Components" .
17. Support transmission assembly and transfer with a transmission
jack.
CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
18. Remove engine rear member with power tool.
19. Tilt the mission slightly to keep the clearance between body and
mission, and then disconnect air breather hose from charging
pipe. Refer to AT- 2 6 4 , "
Removal and Installation" .
20. Disconnect A/T assembly harness connector and transfer assembly harness connector.
21. Remove A/T fluid charging pipe.
22. Plug up openings such as the A/T fluid charging pipe hole, etc.
23. Remove bolts fixing transmission assembly to engine with power tool.
SCIA2011E
SCIA5326E
SCIA2010E
SCIA2202E

BL-88
INTELLIGENT KEY SYSTEM
Revision: 2004 November 2004 FX35/FX45

When door lock/unlock is performed using Intelligent Key remote controller button operation, operation
confirmation is conducted by making hazard lamps flash and Intelligent Key warning buzzer sound.
OPERATION CONDITION
Door lock/unlock operation is necessary for all doors close.
Map Lamp And Keyhole Illumination Function
When the following conditions come:

condition of map lamp switch is DOOR position;

door switch OFF (when all the doors are closed);
Remote control button of Intelligent Key turns on interior lamp (for 30 seconds) with input of UNLOCK signal
from Intelligent Key.
Panic Alarm Function
When key switch is OFF and ignition knob is not pushed (when mechanical key is not inserted in ignition
knob), BCM turns ON and OFF horn and headlamp intermittently with input of PANIC ALARM signal from
Intelligent Key. The alarm automatically turns off after 25 seconds or when Intelligent Key unit receives any
signal from Intelligent Key.
Panic alarm operation mode can be changed using “WORK SUPPORT” mode in “PANIC ALARM DELAY”.
Refer to BL-115, "
WORK SUPPORT" .
Remote Control Power Window Down (open) Operation
When Intelligent Key unlock switch is turned ON with ignition switch OFF, and Intelligent Key unlock switch is
detected to be on continuously for 3 seconds, the driver's door and passenger's door power windows are
simultaneously opened.
Power window is operated to open and the operation continues as long as the Intelligent Key unlock switch is
pressed.
Remote control power window down operation mode can be changed using “P/W DOWN DELAY” mode in
“WORK SUPPORT”. Refer to BL-115, "
WORK SUPPORT" .
Key Reminder Function
As an operation verification function, when doors are locked or unlocked using Intelligent Key remote control-
ler button operation, hazard lamps flash and horn sounds.
ENGINE STARTUP FUNCTION
Operation Description

When ignition knob is pressed, Intelligent Key unit sends request signal from inside key antenna, key-ID
verification is conducted with Intelligent Key using two-way communication, and if verification is success-
ful, an ignition rotation prohibition latch release signal is sent to steering lock unit. Steering lock unit
releases ignition knob rotation prohibition latch. (Ignition knob can now be turned.)

When it becomes possible to rotate the ignition knob, “KEY” warning lamp in combination meter lights up
green to notify driver that ignition knob can be turned.
NOTE:
When it becomes impossible to rotate the ignition knob, “KEY” warning lamp in combination meter lights
up red.

When key-ID verification is successful and ignition knob switch is in the ON state, Intelligent Key unit uses
CAN communication to send engine start permission signal to BCM.

When BCM receives engine start permission signal, it uses CAN communication to sent starter request
signal to IPDM E/R so that the engine will start when ignition knob is rotated to START position.
Operation Range
Engine can be started when Intelligent Key is in the vehicle. However, sometimes engine might not start when
Intelligent Key is on instrument panel, rear parcel shelf, or in glove box.
NOTE:
luggage room can enable detection of Intelligent Key by a CONSULT-II function. Refer to BL-115, "
WORK
SUPPORT" .
Vehicle operation Hazard lamp Horn
Door unlocking operation Once —
Door locking operation Twice Once

BL-120
INTELLIGENT KEY SYSTEM
Revision: 2004 November 2004 FX35/FX45
ENGINE START FUNCTION MALFUNCTION
Intelligent Key Operation Inspection
Mechanical Key Operation Inspection
WARNING CHIME FUNCTION MALFUNCTION
Before conducting the diagnosis in the following table, check “key reminder function” with power door lock sys-
tem.
Symptom Diagnoses service procedure Refer to page
Ignition knob can not turn
KEY warning lamp on combination meter
lights up in red when ignition knob is
pressed. (door lock functions normal)1. Intelligent Key inspectionBL-147
2. Check inside key antennaBL-138
3. Replace Intelligent Key unitBL-146
KEY warning lamp on combination meter
lights up in green when ignition knob is
pressed.1. Check ignition knob switchBL-1272. Check steering lock unitBL-139
3. Check Intelligent Key unit power supply and ground circuitBL-124
4. Replace Intelligent Key unitBL-146
Ignition knob turns even without both Intelli-
gent Key and mechanical key.Replace steering lock unit —
Security indicator will still flash when igni-
tion knob is pressed.1. Check key switch (Intelligent Key unit input)BL-124
2. Replace Intelligent Key unitBL-146
Security indicator does not flash with igni-
tion knob released at LOCK position. (push
switch OFF)1. CAN communication systemBL-123
2. Ignition knob switch systemBL-127
3. Intelligent Key unit power supply and ground circuitBL-124
Starter motor does not cranking.
(Ignition knob can turn)1. Check detention switchBL-1422. Check stop lamp switchBL-141
3. Replace Intelligent Key unitBL-146
Symptom Diagnoses service procedure Refer to page
Ignition knob can not turn
Security indicator remains flashing with
mechanical key inserted.1. Check key switch (BCM input)BL-126
2. Replace Intelligent Key unitBL-146
KEY indicator and security indicator does
not flashing with mechanical key inserted.1. Check stop lamp switchBL-141
2. Replace Intelligent Key unitBL-146
Starter motor does not cranking.
(Ignition knob can turn)1. Check detention switchBL-1422. Check stop lamp switchBL-141
3. Replace Intelligent Key unitBL-146
Symptom Diagnoses service procedure Refer to page
Ignition key warning chime is inoperative.
(When mechanical key used)1. Check CAN communicationBL-123
2. Check key switch (Intelligent Key unit input)BL-124
3. Check door switchBL-128
4. Inspect combination meter (warning)DI-4
5. Replace Intelligent Key unitBL-146
Ignition knob OFF position warning
chime (for inside vehicle) does not
sound.
(Ignition key warning chime operates)1. Check CAN communicationBL-1232. Check ignition knob switchBL-127
3. Check key switch (Intelligent Key unit input)BL-124
4. Replace Intelligent Key unitBL-146