2007 INFINITI FX35 ignition

TROUBLE DIAGNOSIS AT-103
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Revision: 2006 July 2007 FX35/FX45
Judgement Self-diagnosis Code
If there is a malfunction, the lamp lights up for the time corresponding to the suspect circuit.
Erase Self-diagnosis

In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is
stored into the control unit as necessary during use by the user. This memory is not erased no matter how
many times the ignition switch is turned ON and OFF.

However, this information is erased by turning ignition switch “OFF” after performing self-diagnostics or by
erasing the memory using the CONSULT-II.
No. Malfunctioning item No. Malfunctioning item
1 Revolution sensor AT- 11 8
10 A/T fluid temperature sensor AT- 1 3 4
2 Direct clutch solenoid valve AT-154 , AT-15611 Turbine revolution sensor AT- 11 6
3 Torque converter clutch solenoid valve AT-125 , AT- 1 2 712 A/T interlock AT- 1 4 1
4 Line pressure solenoid valve AT-12913 A/T 1st engine braking AT-144
5 Input clutch solenoid valve AT- 1 4 6 , AT- 1 4 814 Start signal AT-107
6 Front brake solenoid valve AT- 1 5 0 , AT- 1 5 215 Accelerator pedal position sensor AT- 1 3 1
7 Low coast brake solenoid valve AT- 1 6 2 , AT- 1 6 416 Engine speed signal AT- 1 2 3
8 High and low reverse clutch solenoid valve AT- 1 5 8 , AT- 1 6 017 CAN communication line AT- 1 0 4
9 PNP switch AT- 11 2
SCIA5767E

AT-104
DTC U1000 CAN COMMUNICATION LINE
Revision: 2006 July 2007 FX35/FX45
DTC U1000 CAN COMMUNICATION LINEPFP:23710
DescriptionNCS001BT
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicNCS001BU

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-II or 17th judgement flicker with-
out CONSULT-II is detected when TCM cannot communicate to other control units.
Possible CauseNCS001BV
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureNCS001BW
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.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to AT- 1 0 6 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
BCIA0031E

AT-106
DTC U1000 CAN COMMUNICATION LINE
Revision: 2006 July 2007 FX35/FX45
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic ProcedureNCS001BY
1. CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1. Turn ignition switch ON and start engine.
2. Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT- II.
Is any malfunction of the
“U1000 CAN COMM CIRCUIT” indicated?
YES >> Print out CONSULT-II screen, go to LAN section. Refer to LAN-49, "
CAN System Specification Chart" .
NO >> INSPECTION END
Terminal Wire
color Item Condition Data (Approx.)
3 L CAN-H – –
8 P CAN-L – –
PCIA0061E

DTC P0615 START SIGNAL CIRCUIT AT-107
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Revision: 2006 July 2007 FX35/FX45
DTC P0615 START SIGNAL CIRCUITPFP:25230
DescriptionNCS001BZ
TCM prohibits cranking other than at “P” or “N” position.
CONSULT-II Reference ValueNCS001C0
On Board Diagnosis LogicNCS001C1

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 CauseNCS001C2

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

Starter relay circuit
DTC Confirmation ProcedureNCS001C3
CAUTION:
Always drive vehicle at a safe speed.
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.
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- 1 0 9 , "
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 P0615 START SIGNAL CIRCUIT AT-109
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Revision: 2006 July 2007 FX35/FX45
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic ProcedureNCS001C5
1. CHECK STARTER RELAY
With CONSULT-II
1. Turn ignition switch ON.
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.
2. Check voltage between the IPDM E/R connector and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK HARNESS BETWEEN A/T ASSEMBLY HARNESS CONNECTOR AND IPDM E/R CONNEC-
TOR
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector and IPDM E/R connector.
3. Check continuity between A/T assembly harness connector and IPDM E/R connector.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Terminal Wire
color Item Condition Data (Approx.)
9GYStarter relay Selector lever in “N” and “P” positions. Battery voltage
Selector lever in other positions. 0 V
Item name Condition Display value
STARTER RELAY Selector lever in “N” and “P” positions. ON
Selector lever in other positions. OFF
Name Connector Terminal Shift position Voltage (Approx.)
Sta rter
relay E9 53 - Ground “N” and “P” Battery voltage
“R” and “D” 0 V
PCIA0056E
SCIA2103E
Item Connector Terminal Continuity
A/T assembly harness con-
nector F44 9
Ye s
IPDM E/R connector E9 53
SCIA5439E

DTC P0700 TCM AT-111
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Revision: 2006 July 2007 FX35/FX45
DTC P0700 TCMPFP:31036
DescriptionNCS001C6
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 LogicNCS001C7

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0700 TCM” with CONSULT-II is detected when TCM is malfunctioning.
Possible CauseNCS001C8
TCM.
DTC Confirmation ProcedureNCS001C9
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.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Touch “START”.
4. Start engine.
5. Run engine for at least 2 consecutive seconds at idle speed.
6. If DTC is detected, go to AT- 111 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Diagnostic ProcedureNCS001CA
1. CHECK DTC
With CONSULT-II
1. Turn ignition switch ON.
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 AT- 111 , "
DTC Confirmation Procedure" .
Is the
“P0700 TCM” displayed again?
YES >> Replace the control valve with TCM. Refer to AT- 2 3 9 , "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2" .
NO >> INSPECTION END
BCIA0031E

AT-112
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: 2006 July 2007 FX35/FX45
DTC P0705 PARK/NEUTRAL POSITION SWITCHPFP:32006
DescriptionNCS001CB

The PNP switch includes a transmission range switch.

The transmission range switch detects the selector lever position and sends a signal to the TCM.
CONSULT-II Reference ValueNCS001CC
On Board Diagnosis LogicNCS001CD

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-II or 9th judgement flicker without CON-
SULT-II is detected under the following conditions.
–When TCM does not receive the correct voltage signal from the PNP switches 1, 2, 3 and 4 based on the
gear position.
–When no other position but “P” position is detected from “N” position.
Possible CauseNCS001CE

Harness or connectors
(PNP switches 1, 2, 3 and 4 and TCM circuit is open or shorted.)

PNP switches 1, 2, 3 and 4
DTC Confirmation ProcedureNCS001CF
CAUTION:
Always drive vehicle at a safe speed.
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.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Touch “START”.
4. Start engine.
5. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.
ACCELE POSI: More than 1.0/8
6. If DTC is detected, go to AT- 11 4 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value
SLCT LVR POSI Selector lever in “N” and “P” positions. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
BCIA0031E

AT-114
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNCS001CH
1. CHECK PNP SW CIRCUIT
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Check if correct selector lever position (N/P, R or D) is displayed as selector lever is moved into each position.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT- 1 7 9 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. DETECT MALFUNCTIONING ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
Item name Condition Display value
SLCT LVR POSI Selector lever in “N” and “P” positions. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
PCIA0034E