INFINITI FX35 2005 Service Manual

AT-108
DTC U1000 CAN COMMUNICATION LINE
Revision: 2005 July 2005 FX
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic ProcedureACS002MF
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
“CAN COMM CIRCUIT” indicated?
YES >> Print out CONSULT-II screen, GO TO LAN section. Refer to LAN-5, "
Precautions When Using CONSULT-II"
.
NO >> INSPECTION END
Terminal Wire
color Item Condition Data (Approx.)
3 L CAN-H – –
8 R CAN-L – –
PCIA0061E

DTC P0615 START SIGNAL CIRCUIT AT-109
D E
F
G H
I
J
K L
M A
B
AT
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

AT-110
DTC P0615 START SIGNAL CIRCUIT
Revision: 2005 July 2005 FX
Wiring Diagram — AT — STSIGACS0085E
TCWM0247E

DTC P0615 START SIGNAL CIRCUIT AT-111
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2005 July 2005 FX
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic ProcedureACS002MK
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 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. 0V
Item name Condition Display value
STARTER RELAY Selector lever in “N” and “P” positions. ON
Selector lever in other positions. OFF
Item Connector Terminal
(Wirer color) Shift position Voltage (Approx.)
Sta rter
relay E953
(GY) Ground “N” and “P” Battery voltage
“R” and “D” 0V
PCIA0056E
SCIA2103E
Item Connector Te r m i n a l
(Wire color) Continuity
A/T assembly harness con-
nector F44 9 (GY)
Ye s
IPDM E/R connector E9 53 (GY)
SCIA5439E

AT-112
DTC P0615 START SIGNAL CIRCUIT
Revision: 2005 July 2005 FX
3. CHECK TERMINAL CORD ASSEMBLY
1. Remove control valve with TCM. Refer to AT- 2 4 3 , "
Control Valve with TCM and A/T Fluid Temperature
Sensor 2" .
2. Disconnect A/T assembly harness connector and TCM connector.
3. Check continuity between A/T assembly harness connector ter- minal and TCM connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Replace open circuit or short to ground and short to power in harness or connectors.
4. DETECT MALFUNCTIONING ITEM
Check the following.

Starter relay, Refer to SC-10, "STARTING SYSTEM" .

IPDM E/R, Refer to PG-18, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)" .
OK or NG
OK >> Replace the control valve with TCM. Refer to AT- 2 4 3 , "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2" .
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform “DTC Confirmation Procedure”.

Refer to AT- 1 0 9 , "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
Item Connector Te r m i n a l
(Wire color) Continuity
A/T assembly harness con-
nector F44 9 (G)
Ye s
TCM connector F502 8 (G)
SCIA5440E

DTC P0700 TCM AT-113
D E
F
G H
I
J
K L
M A
B
AT
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

AT-114
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: 2005 July 2005 FX
DTC P0705 PARK/NEUTRAL POSITION SWITCHPFP:32006
DescriptionACS002ML

The park/neutral position (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 ValueACS003K3
On Board Diagnosis LogicACS002MM

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 CauseACS002MN

Harness or connectors
[Park/neutral position (PNP) switches 1, 2, 3 and 4 and TCM circuit is open or shorted.]

Park/neutral position (PNP) switches 1, 2, 3 and 4
DTC Confirmation ProcedureACS002MO
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. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” or “MAIN SHIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.
THRTL POS SEN: More than 1.2V
5. If DTC is detected, go to AT- 11 6 , "
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

DTC P0705 PARK/NEUTRAL POSITION SWITCH AT-115
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2005 July 2005 FX
Wiring Diagram — AT — PNP/SWACS0085F
TCWM0248E

AT-116
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: 2005 July 2005 FX
Diagnostic ProcedureACS002MP
1. CHECK PNP SW CIRCUIT
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.
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 8 3 , "
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 the following.

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

DTC P0705 PARK/NEUTRAL POSITION SWITCH AT-117
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2005 July 2005 FX
4. CHECK SUB-HARNESS
1. Remove control valve with TCM. Refer to AT- 2 4 3 , "
Control Valve with TCM and A/T Fluid Temperature
Sensor 2" .
2. Disconnect park/neutral position switch connector and TCM connector.
3. Check continuity between park/neutral position switch connector terminals and TCM connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> Replace the control valve with TCM. Refer to AT- 2 4 3 , "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2" .
NG >> Replace open circuit or short to ground and short to power in harness or connectors.
5. CHECK DTC
Perform “DTC Confirmation Procedure”.

Refer to AT- 11 4 , "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
Item Connector Te r m i n a l
(Wire color) Continuity
Park/neutral position switch
connector F505 1 (BR)
Ye s
TCM connector F503 13 (BR)
Park/neutral position switch
connector F505 2 (W)
Ye s
TCM connector F503 11 (W)
Park/neutral position switch
connector F505 3 (GY)
Ye s
TCM connector F503 12 (GY)
Park/neutral position switch
connector F505 5 (L)
Ye s
TCM connector F503 14 (L)
SCIA5457E