2005 INFINITI FX35 ECU

AT-54
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Stall test standard value position
LINE PRESSURE TEST
Line Pressure Test Port
Line Pressure Test Procedure
1. Inspect the amount of engine oil and replenish if necessary.
2. Drive the car for about 10 minutes to warm it up so that the ATF reaches in range of 50 to 80 °C (122 to
176 °F), then inspect the amount of ATF and replenish if necessary.
NOTE:
The A/T fluid temperature rises in range of 50 to 80 °C (122 to 176 °F) during 10 minutes of driving.
3. Remove the front propeller shaft from vehicle (with AWD models). Refer to PR-5, "
Removal and Installa-
tion" .
4. After warming up remove the oil pressure detection plug and install the oil pressure gauge [ST2505S001(J-34301-C)].
CAUTION:
When using the oil pressure gauge, be sure to use the O-
ring attached to the oil pressure detection plug.
5. Securely engage the parking brake so that the tires do not turn.
Does not shift-up “D” or “M” position 1 → 2 Slipping in 2nd, 3rd or 4th gear Direct clutch slippage
Does not shift-up “D” or “M” position 2 → 3 Slipping in 3rd, 4th or 5th gear High and low reverse clutch slippage
Does not shift-up “D” or “M” position 3 → 4 Slipping in 4th or 5th gear Input clutch slippage
Does not shift-up “D” or “M” position 4 → 5 Slipping in 5th gear Front brake slippage
SCIA2187E
SCIA5309E
SCIA7463E

AT-90
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
CONSULT-II Function (A/T)ACS002M9
CONSUT-II can display each diagnostic item using the diagnostic test models shown following.
FUNCTION
CONSULT-II REFERENCE VALUE
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man- ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Display of solenoid valves on CONSULT-II changes at the start of shifting, while gear position is displayed upon completion of shifting (which is computed by TCM).
Diagnostic test mode Function Reference page
Self-diagnostic results Self-diagnostic results can be read and erased quickly. AT- 9 3
Data monitor Input/Output data in the ECU can be read.AT- 9 6
CAN diagnostic support
monitor The results of transmit/receive diagnosis of CAN communication can be read.
AT- 1 0 0
Function test Performed by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”. —
DTC work support Select the operating condition to confirm Diagnosis Trouble Codes. AT- 1 0 0
ECU part number ECU part number can be read. —
Item name Condition Display value
(Approx.)
VHCL/S SE·A/T During driving Approximately
matches the speed-
ometer reading.
VHCL/S SE·MTR
ACCELE POSI Released accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8/8
CLSD THL POS Released accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POS Fully depressed accelerator pedal. ON
Released accelerator pedal. OFF
BRAKE SW Depressed brake pedal. ON
Released brake pedal. OFF
ENGINE SPEED Engine running Closely matches the
tachometer reading.
TURBINE REV During driving (lock-up ON) Approximately
matches the engine
speed.
ATF TEMP SE 1 0 °C (32 ° F) - 20 °C (68 °F) - 80 °C (176 °F) 3.3 - 2.7 - 0.9 V
ATF TEMP SE 2 3.3 - 2.5 - 0.7 V
TCC SOLENOID When performing slip lock-up 0.2 - 0.4 A
When performing lock-up 0.4 - 0.6 A
LINE PRES SOL During driving 0.2 - 0.6 A

AT-96
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
*3: For VQ35DE engine.
How to Erase Self-Diagnostic Results
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to AT- 9 2 , "CONSULT-II SETTING PROCEDURE"
.
2. Touch “SELF-DIAG RESULTS”.
3. Touch ”ERASE”. (The self-diagnostic results will be erased.)
DATA MONITOR MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to AT- 9 2 , "CONSULT-II SETTING PROCEDURE"
.
2. Touch “DATA MONITOR”. NOTE:
When malfunctions detected, CONSULT-II performs “REAL-
TIME DIAGNOSIS”. Also, any malfunction detected while in
this mode will be displayed at real time.
Display Items List
X: Standard, —: Not applicable, : Option
BCIA0031E
PCIA0061E
BCIA0031E
Monitored item (Unit) Select Monitor Item
Remarks
ECU
INPUT
SIGNALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU
VHCL/S SE·A/T (km/h) X X Revolution sensor
VHCL/S SE·MTR (km/h) X —
ACCELE POSI (0.0/8) X — Accelerator pedal position signal

TROUBLE DIAGNOSIS AT-97
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Revision: 2005 July 2005 FX
THROTTLE POSI (0.0/8) X X Degree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used
for control is displayed.
CLSD THL POS (ON-OFF) X — Signal input with CAN communications
W/O THL POS (ON-OFF) X —
BRAKE SW (ON-OFF) X — Stop lamp switch
GEAR — X Gear position recognized by the TCM updated
after gear-shifting
ENGINE SPEED (rpm) X X
TURBINE REV (rpm) X X
OUTPUT REV (rpm) X X
GEAR RATIO — X
TC SLIP SPEED (rpm) — X Difference between engine speed and torque
converter input shaft speed
F SUN GR REV (rpm) — —
F CARR GR REV (rpm) — —
ATF TEMP SE 1 (V) X —
ATF TEMP SE 2 (V) X —
AT F T E M P 1 ( °C) — X
AT F T E M P 2 ( °C) — X
BATTERY VOLT (V) X —
ATF PRES SW 1 (ON-OFF) X X (for FR/B solenoid)
ATF PRES SW 2 (ON-OFF) X X (for LC/B solenoid)
ATF PRES SW 3 (ON-OFF) X X (for I/C solenoid)
ATF PRES SW 5 (ON-OFF) X X (for D/C solenoid)
ATF PRES SW 6 (ON-OFF) X X (for HLR/C solenoid)
PNP SW 1 (ON-OFF) X —
PNP SW 2 (ON-OFF) X —
PNP SW 3 (ON-OFF) X —
PNP SW 4 (ON-OFF) X —
1 POSITION SW (ON-OFF) X —
SLCT LVR POSI — X Selector lever position is recognized by the
TCM.
For fail-safe operation, the specific value used
for control is displayed.
OD CONT SW (ON-OFF) X —
Not mounted but displayed.
POWERSHIFT SW (ON-OFF) X —
HOLD SW (ON-OFF) X — Monitored item (Unit)
Select Monitor Item
Remarks
ECU
INPUT
SIGNALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU

AT-98
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
MANU MODE SW (ON-OFF) X —
NON M-MODE SW (ON-OFF) X —
UP SW LEVER (ON-OFF) X —
DOWN SW LEVER (ON-OFF) X —
SFT UP ST SW (ON-OFF) — — Not mounted but displayed.
SFT DWN ST SW (ON-OFF) — —
ASCD·OD CUT (ON-OFF) — —
ASCD·CRUISE (ON-OFF) — —
ABS SIGNAL (ON-OFF) — —
ACC OD CUT (ON-OFF) — — ICC (intelligent cruise control)
ACC SIGNAL (ON-OFF) — —
TCS GR/P KEEP (ON-OFF) — —
TCS SIGNAL 2 (ON-OFF) — —
TCS SIGNAL 1 (ON-OFF) — —
TCC SOLENOID (A) — X
LINE PRES SOL (A) — X
I/C SOLENOID (A) — X
FR/B SOLENOID (A) — X
D/C SOLENOID (A) — X
HLR/C SOL (A) — X
ON OFF SOL (ON-OFF) — — LC/B solenoid
TCC SOL MON (A) — —
L/P SOL MON (A) — —
I/C SL MON (A) — —
FR/B SOL MON (A) — —
D/C SOL MON (A) — —
HLR/C SOL MON (A) — —
ON OFF SOL MON (ON-OFF) — — LC/B solenoid
P POSI IND (ON-OFF) — —
R POSI IND (ON-OFF) — —
N POSI IND (ON-OFF) — —
D POSI IND (ON-OFF) — —
4TH POSI IND (ON-OFF) — —
3RD POSI IND (ON-OFF) — —
2ND POSI IND (ON-OFF) — — Monitored item (Unit)
Select Monitor Item
Remarks
ECU
INPUT
SIGNALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU

TROUBLE DIAGNOSIS AT-99
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Revision: 2005 July 2005 FX
1ST POSI IND (ON-OFF) — —
MANU MODE IND (ON-OFF) — —
POWER M LAMP (ON-OFF) — —
F-SAFE IND/L (ON-OFF) — —
ATF WARN LAMP (ON-OFF) — — Not mounted but displayed
BACK-UP LAMP (ON-OFF) — —
STARTER RELAY (ON-OFF) — —
PNP SW3 MON (ON-OFF) — —
C/V CLB ID1 — —
C/V CLB ID2 — —
C/V CLB ID3 — —
UNIT CLB ID1 — —
UNIT CLB ID2 — —
UNIT CLB ID3 — —
TRGT GR RATIO — —
TRGT PRES TCC (kPa) — —
TRGT PRES L/P (kPa) — —
TRGT PRES I/C (kPa) — —
TRGT PRE FR/B (kPa) — —
TRGT PRES D/C (kPa) — —
TRG PRE HLR/C (kPa) — —
SHIFT PATTERN — —
DRV CST JUDGE — —
START RLY MON — —
NEXT GR POSI — —
SHIFT MODE — —
MANU GR POSI — —
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM.
Voltage (V) — — Displays the value measured by the voltage
probe.
Frequency (Hz) — —
The value measured by the pulse probe is dis-
played.
DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — — Monitored item (Unit)
Select Monitor Item
Remarks
ECU
INPUT
SIGNALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU

DTC P0615 START SIGNAL CIRCUIT AT-109
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Revision: 2005 July 2005 FX
DTC P0615 START SIGNAL CIRCUITPFP:25230
DescriptionACS003LO

TCM prohibits cranking other than at “P” or “N” position.
CONSULT-II Reference ValueACS003K2
On Board Diagnosis LogicACS002MH

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

Diagnostic trouble code “P0615 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 CauseACS003LP

Harness or connectors
[Starter relay and TCM circuit is open or shorted.]

Starter relay circuit
DTC Confirmation ProcedureACS002MJ
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing 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 “SELECTION FROM MENU” in “DATA MONITOR” mode for “A/T” with CONSULT-II and check monitor “STARTER
RELAY” ON/OFF.
3. Start engine.
4. Drive vehicle for at least 2 consecutive seconds.
5. If DTC is detected, go to AT- 111 , "
Diagnostic Procedure" .
Item name Condition Display value
STARTER RELAY Selector lever in “N” and “P” positions. ON
Selector lever in other positions. OFF
BCIA0031E

DTC P0700 TCM AT-113
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Revision: 2005 July 2005 FX
DTC P0700 TCMPFP:31036
DescriptionACS006DU
The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The
TCM controls the A/T.
On Board Diagnosis LogicACS006DV

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0700* TCM” with CONSULT-II is detected when TCM is malfunctioning.
*: For VQ35DE engine.
Possible CauseACS006DW
TCM.
DTC Confirmation ProcedureACS006DX
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing 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 “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Run engine for at least 2 consecutive seconds at idle speed.
5. If DTC is detected, go to AT- 11 3 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Diagnostic ProcedureACS006DY
1. CHECK DTC
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF DIAG RESULTS” mode for “A/T” with CONSULT-II.
3. Touch “ERASE”.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Perform DTC confirmation procedure, AT- 11 3 , "
DTC Confirmation Procedure" .
Is the
“P0700 TCM” displayed again?
YES >> Replace the control valve with TCM. Refer to AT- 2 4 3 , "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2" .
NO >> INSPECTION END
BCIA0031E