starter INFINITI FX35 2004 Service Manual

INDEX FOR DTC
AT-5
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
INDEX FOR DTCPFP:00024
Alphabetical Index ACS0079V
NOTE:
If DTC “U1000” is displayed with other DTC, first perform the trouble diagnosis for “DTC U1000 CAN
COMMUNICATION LINE”. Refer to AT- 1 0 5
.
*1: These numbers are prescribed by SAE J2012.
*2: For VQ35DE engine.
*3: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.Items
(CONSULT-II screen terms) DTC
Reference page OBD-II Except OBD-II
CONSULT-II (GST*1) CONSULT-II only “A/T”
A/T 1ST E/BRAKING — P1731AT- 1 5 0
ATF PRES SW 1/CIRC — P1841AT- 1 7 8
ATF PRES SW 3/CIRC — P1843AT- 1 8 0
ATF PRES SW 5/CIRC — P1845AT- 1 8 2
ATF PRES SW 6/CIRC — P1846AT- 1 8 4
A/T INTERLOCK P1730 P1730AT- 1 4 7
A/T TCC S/V FNCTN P0744 P0744 AT- 1 2 5
ATF TEMP SEN/CIRC P0710 P1710AT- 1 3 9
CAN COMM CIRCUIT U1000 U1000AT- 1 0 5
D/C SOLENOID/CIRC P1762 P1762AT- 1 6 0
D/C SOLENOID FNCTN P1764 (*3) P1764 AT- 1 6 2
ENGINE SPEED SIG P0725 (*2) P0725AT- 1 2 1
FR/B SOLENOID/CIRC P1757 P1757AT- 1 5 6
FR/B SOLENOID FNCT P1759 P1759 AT- 1 5 8
HLR/C SOL/CIRC P1767 P1767AT- 1 6 4
HLR/C SOL FNCTN P1769 (*3) P1769 AT- 1 6 6
I/C SOLENOID/CIRC P1752 P1752AT- 1 5 2
I/C SOLENOID FNCTN P1754 (*3) P1754 AT- 1 5 4
L/PRESS SOL/CIRC P0745 P0745AT- 1 2 7
LC/B SOLENOID/CIRC P1772 P1772AT- 1 6 8
LC/B SOLENOID FNCT P1774 P1774 AT- 1 7 0
MANU MODE SW/CIR — P1815AT- 1 7 2
PNP SW/CIRC P0705 P0705AT- 11 2
STARTER RELAY/CIRC — P0615AT- 1 0 8
TCC SOLENOID/CIRC P0740 P0740AT- 1 2 3
TCM·EEPROM — P1704AT- 1 3 5
TCM-POWER SUPPLY — P1701AT- 1 2 9
TCM·RAM — P1702AT- 1 3 3
TCM·ROM — P1703AT- 1 3 4
TP SEN/CIRC A/T P1705 (*2) P1705AT- 1 3 6
TURBINE REV S/CIRC P1716 P1716AT- 1 4 3
VEH SPD SE/CIR·MTR — P1721AT- 1 4 5
VEH SPD SEN/CIR AT P0720 P0720AT- 11 6

AT-6
INDEX FOR DTC
Revision: 2004 November 2004 FX35/FX45
DTC No. Index ACS0079W
NOTE:
If DTC “U1000” is displayed with other DTC, first perform the trouble diagnosis for “DTC U1000 CAN
COMMUNICATION LINE”. Refer to AT- 1 0 5
.
*1: These numbers are prescribed by SAE J2012.
*2: For VQ35DE engine.
*3: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.DTC
Items
(CONSULT-II screen terms)Reference page OBD-II Except OBD-II
CONSULT-II GST (*1) CONSULT-II only “A/T”
— P0615 STARTER RELAY/CIRCAT-108
P0705 P0705 PNP SW/CIRCAT- 11 2
P0710 P1710 ATF TEMP SEN/CIRCAT-139
P0720 P0720 VEH SPD SEN/CIR ATAT- 11 6
P0725 (*2) P0725 ENGINE SPEED SIGAT-121
P0740 P0740 TCC SOLENOID/CIRCAT-123
P0744 P0744 A/T TCC S/V FNCTNAT-125
P0745 P0745 L/PRESS SOL/CIRCAT-127
— P1701 TCM-POWER SUPPLYAT-129
— P1702 TCM·RAMAT-133
— P1703 TCM·ROMAT-134
— P1704 TCM·EEPROMAT-135
P1705 (*2) P1705 TP SEN/CIRC A/TAT-136
P1716 P1716 TURBINE REV S/CIRCAT-143
— P1721 VEH SPD SE/CIR·MTRAT-145
P1730 P1730 A/T INTERLOCKAT-147
— P1731 A/T 1ST E/BRAKINGAT-150
P1752 P1752 I/C SOLENOID/CIRCAT-152
P1754 (*3) P1754 I/C SOLENOID FNCTNAT-154
P1757 P1757 FR/B SOLENOID/CIRCAT-156
P1759 (*3) P1759 FR/B SOLENOID FNCTAT-158
P1762 P1762 D/C SOLENOID/CIRCAT-160
P1764 (*3) P1764 D/C SOLENOID FNCTNAT-162
P1767 P1767 HLR/C SOL/CIRCAT-164
P1769 P1769 HLR/C SOL FNCTNAT-166
P1772 P1772 LC/B SOLENOID/CIRCAT-168
P1774 P1774 LC/B SOLENOID FNCTAT-170
— P1815 MANU MODE SW/CIRCAT-172
— P1841 ATF PRES SW 1/CIRCAT-178
— P1843 ATF PRES SW 3/CIRCAT-180
— P1845 ATF PRES SW 5/CIRCAT-182
— P1846 ATF PRES SW 6/CIRCAT-184
U1000 U1000 CAN COMM CIRCUITAT-105

AT-30
A/T CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
TCM FunctionACS002LF
The function of the TCM is to:

Receive input signals sent from various switches and sensors.

Determine required line pressure, shifting point, lock-up operation, and engine brake operation.

Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The automatic transmission senses vehicle operating conditions through various sensors or signals. It always
controls the optimum shift position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SENSORS (or SIGNALS)

TCM

ACTUATORS
PNP switch
Accelerator pedal position sensor
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Vehicle speed signal
Manual mode switch signal
Stop lamp switch signal
Turbine revolution sensor
ATF pressure switchShift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-II communication line
Duet-EA control
CAN systemInput clutch solenoid valve
Direct clutch solenoid valve
Front brake solenoid valve
High and low reverse clutch
solenoid valve
Low coast brake solenoid valve
Torque converter clutch solenoid
valve
Line pressure solenoid valve
A/T CHECK indicator lamp
Starter relay
Back-up lamp relay
SCIA5325E

AT-42
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
TROUBLE DIAGNOSISPFP:00004
DTC Inspection Priority ChartACS007A2
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC “U1000” is displayed with other DTC, first perform the trouble diagnosis for “DTC U1000 CAN
COMMUNICATION LINE”. Refer to AT- 1 0 5
.
Fail-SafeACS007A3
The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is a an mal-
function in a main electronic control input/output signal circuit.
In fail-safe mode, even if the selector lever is “D” or “M” mode, the transmission is fixed in 2nd or 4th (depend-
ing on the breakdown position), so the customer should feel “slipping” or “poor acceleration”. When fail-safe
mode is triggered, when the ignition switch is switched “ON”, the A/T CHECK indicator lamp flashes for about
8 seconds. (Refer to AT- 1 0 3 , "
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" ).
Even when the electronic circuits are normal, under special conditions (for example, when slamming on the
brake with the wheels spinning drastically and stopping the tire rotation), the transmission can go into fail-safe
mode. If this happens, switch “OFF” the ignition switch for 10 seconds, then switch it “ON” again to return to
the normal shift pattern. Also, the A/T CHECK indicator lamp flashes for about 8 seconds once, then is
cleared. Therefore, the customer's vehicle has returned to normal, so handle according to the “diagnostics
flow” (Refer to AT- 4 5
).
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, this function controls the A/T to make driving possible.
Vehicle Speed Sensor A/T (Revolution Sensor)

Signals are input from two systems - from vehicle speed sensor A/T (revolution sensor) installed on the
transmission and from combination meter so normal driving is possible even if there is a malfunction in
one of the systems. And if vehicle speed sensor A/T (revolution sensor) has unusual cases, 5th gear and
manual mode are prohibited.
Accelerator Pedal Position Sensor

If there is a malfunction in one of the systems, the accelerator opening angle is controlled by ECM accord-
ing to a pre-determined accelerator angle to make driving possible. And if there are malfunctions in tow
systems, the engine speed is fixed by ECM to a pre-determined engine speed to make driving possible.
Throttle Position Sensor

If there is a malfunction in one of the systems, the accelerator opening angle is controlled by ECM accord-
ing to a pre-determined accelerator angle to make driving possible. And if there are malfunctions in tow
systems, the accelerator opening angle is controlled by the idle signal sent from the ECM which is based
on input indicating either idle condition or off-idle condition (pre-determined accelerator opening) in order
to make driving possible.
PNP Switch

In the unlikely event that a malfunction signal enters the TCM, the position indicator is switched “OFF”, the
starter relay is switched “OFF” (starter starting is disabled), the back-up lamp relay switched “OFF” (back-
up lamp is OFF) and the position is fixed to the “D” range to make driving possible.
Starter Relay

The starter relay is switched “OFF”. (Starter starting is disabled.)
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above

TROUBLE DIAGNOSIS
AT-89
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
68
OthersEngine does not start
in N or P position.
Refer to AT-193, "Engine Cannot Be
Started In “P” or “N”
Position" .ON vehicle1. Ignition switch and starterPG-3
, SC-
10
2. Control linkage adjustmentAT-234
3. PNP switchAT- 11 2
69Engine starts in posi-
tions other than N or
P.ON vehicle1. Ignition switch and starterPG-3
, SC-
10
2. Control linkage adjustmentAT-234
3. PNP switchAT- 11 2
70 Engine stall.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. Turbine revolution sensorAT-143
4. Torque converter clutch solenoid valveAT-123
5. CAN communication lineAT-105
6. Control valve with TCMAT-242
OFF vehicle 7. Torque converterAT-286
71Engine stalls when
select lever shifted N
→ D, R.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. Turbine revolution sensorAT-143
4. Torque converter clutch solenoid valveAT-123
5. CAN communication lineAT-105
6. Control valve with TCMAT-242
OFF vehicle 7. Torque converterAT-286
72Engine speed does
not return to idle.
Refer to AT-221,
"Engine Speed Does
Not Return To Idle" .ON vehicle1. Fluid level and stateAT- 5 1
2. ATF pressure switch 5 and direct clutch solenoid valveAT-182,
AT-160

3. ATF pressure switch 1 and front brake solenoid valveAT-178
,
AT-156
4. Accelerator pedal position sensorAT-136
5. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
6. CAN communication lineAT-105
7. Control valve with TCMAT-242
OFF vehicle8. Front brake (brake band)AT-2869. Direct clutchAT-323
No. Items Symptom Condition Diagnostic ItemReference
page

AT-90
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
TCM Input/Output Signal Reference ValuesACS007AH
A/T ASSEMBLY HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
Data are reference value and are measured between each terminal and ground.
SCIA1658E
TerminalWire
colorItem Condition Data (Approx.)
1LGPower supply
(Memory back-up)Always Battery voltage
2LGPower supply
(Memory back-up)Always Battery voltage
3 L CAN-H – –
4PUK-line (CONSULT-
II signal)The terminal is connected to the data link connector for CONSULT-II. –
5 B Ground Always 0V
6 Y Power supply– Battery voltage
–0V
7ORBack-up lamp
relaySelector lever in “R” position. 0V
Selector lever in other positions. Battery voltage
8 R CAN-L – –
9GYStarter relaySelector lever in “N” and “P” positions. Battery voltage
Selector lever in other positions. 0V
10 B Ground Always 0V

AT-92
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
ATF PRES SW 2Low coast brake engaged. Refer to AT- 2 0 .ON
Low coast brake disengaged. Refer to AT- 2 0
.OFF
ATF PRES SW 3Input clutch engaged. Refer to AT- 2 0
.ON
Input clutch disengaged. Refer to AT- 2 0
.OFF
ATF PRES SW 5Direct clutch engaged. Refer to AT- 2 0
.ON
Direct clutch disengaged. Refer to AT- 2 0
.OFF
ATF PRES SW 6High and low reverse clutch engaged. Refer to AT- 2 0
.ON
High and low reverse clutch disengaged Refer to AT- 2 0
.OFF
I/C SOLENOIDInput clutch disengaged. Refer to AT- 2 0
. 0.6 - 0.8 A
Input clutch engaged. Refer to AT- 2 0
. 0 - 0.05 A
FR/B SOLENOIDFront brake engaged. Refer to AT- 2 0
. 0.6 - 0.8 A
Front brake disengaged. Refer to AT- 2 0
. 0 - 0.05 A
D/C SOLENOIDDirect clutch disengaged. Refer to AT- 2 0
. 0.6 - 0.8 A
Direct clutch engaged. Refer to AT- 2 0
. 0 - 0.05 A
HLR/C SOLHigh and low reverse clutch disengaged. Refer to AT- 2 0
. 0.6 - 0.8 A
High and low reverse clutch engaged. Refer to AT- 2 0
. 0 - 0.05 A
ON OFF SOLLow coast brake engaged. Refer to AT- 2 0
.ON
Low coast brake disengaged. Refer to AT- 2 0
.OFF
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
STARTER RELAYSelector lever in N and P position. ON
Selector lever in other positions. OFF
ACCELE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8/8
THROTTLE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8/8
CLSD THL POSReleased accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POSFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF Item name Condition Display value (Approx.)

AT-94
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
SELF-DIAGNOSTIC RESULT MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE” Refer to AT- 9 3 ,
"CONSULT-II SETTING PROCEDURE" .
2. Touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable, —: Not applicable
SCIA5304E
Items (CONSULT-
II screen terms)Malfunction is detected when...TCM self-diagnosis OBD-II (DTC)
A/T CHECK
indicator
lamp “A/T” with
CONSULT-IIMIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
CAN COMM CIR-
CUIT

When a malfunction is detected in CAN communications X U1000 U1000
STARTER RELAY/
CIRC

If this signal is ON other than in P or N position, this is
judged to be a malfunction.
(And if it is OFF in P or N position, this too is judged to be a
malfunction.)X P0615 —
PNP SW/CIRC

PNP switch 1-4 signals input with impossible pattern

P position is detected from N position without any other
position being detected in between.X P0705 P0705
VEH SPD SEN/
CIR AT (Revolution
sensor)

Signal from vehicle speed sensor A/T (Revolution sensor)
not input due to cut line or the like

Unexpected signal input during running

After ignition switch is turned ON, unexpected signal input
from vehicle speed sensor MTR before the vehicle starts
movingX P0720 P0720
ENGINE SPEED
SIG

TCM does not receive the CAN communication signal from
the ECM.X P0725 P0725*3
TCC SOLENOID/
CIRC

Normal voltage not applied to solenoid due to cut line,
short, or the likeX P0740 P0740
A/T TCC S/V
FNCTN

A/T cannot perform lock-up even if electrical circuit is good.

TCM detects as irregular by comparing difference value
with slip rotation.X P0744 P0744*2
L/PRESS SOL/
CIRC

Normal voltage not applied to solenoid due to cut line,
short, or the like

TCM detects as irregular by comparing target value with
monitor value.X P0745 P0745
TCM-POWER
SUPPLY

When the power supply to the TCM is cut “OFF”, for exam-
ple because the battery is removed, and the self-diagnos-
tics memory function stops

This is not a malfunction message (Whenever shutting
“OFF” a power supply to the TCM, this message appears
on the screen.)— P1701 —
TCM·RAM

TCM memory (RAM) is malfunctioning. — P1702 —
TCM·ROM

TCM memory (ROM) is malfunctioning. — P1703 —

TROUBLE DIAGNOSIS
AT-99
D
E
F
G
H
I
J
K
L
MA
B
AT
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