2008 INFINITI FX35 Service Manual

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Page 185 of 3924

INFINITI FX35 2008 Service Manual
AT-112
< SERVICE INFORMATION >
DTC P0725 ENGINE SPEED SIGNAL
DTC P0725 ENGINE SPEED SIGNAL
DescriptionINFOID:0000000001327203
The engine speed signal is sent from the ECM to the TCM with CAN communic

AT-112
< SERVICE INFORMATION >
DTC P0725 ENGINE SPEED SIGNAL
DTC P0725 ENGINE SPEED SIGNAL
DescriptionINFOID:0000000001327203
The engine speed signal is sent from the ECM to the TCM with CAN communication.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001327204
On Board Diagnosis LogicINFOID:0000000001327205
Diagnostic trouble code “P0725 ENGINE SPEED SIG” wit h CONSULT-III or 16th judgement flicker without
CONSULT-III is detected when TCM does not receive the ignition signal from ECM during engine cranking or
running.
Possible CauseINFOID:0000000001327206
Harness or connectors
(ECM to TCM circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001327207
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “VHCL/S SE-A/T”, “ACCELE POSI” and “SLCT LVR POSI”.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 10 consecutive seconds.
VHCL/S SE-A/T: 10 km/h (6 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
5. If DTC is detected, go to AT-112, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001327208
1.CHECK CAN COMMUNICATION LINE
With CONSULT-III
Perform the self-diagnosis.
Without CONSULT-III
Perform the self-diagnosis. Refer to AT-91, "
Diagnosis Procedure without CONSULT-III".
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 9 4.
NO >> GO TO 2.
2.CHECK DTC WITH TCM
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
Item name Condition Display value
ENGINE SPEED Engine running Closely matches the tachometer reading.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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Page 186 of 3924

$INFINITI FX35 2008 Service Manual DTC P0725 ENGINE SPEED SIGNALAT-113 < SERVICE INFORMATION > DE F G H I J K L M A B AT N O P 3. While monitoring engine speed, check for engine speed change corresponding to \ wide-open throttle posi-$

Page 187 of 3924

INFINITI FX35 2008 Service Manual
AT-114
< SERVICE INFORMATION >
DTC P0731 A/T 1ST GEAR FUNCTION
DTC P0731 A/T 1ST GEAR FUNCTION
DescriptionINFOID:0000000001375112
This malfunction is detected when the A/T does not shift into 1st gea

AT-114
< SERVICE INFORMATION >
DTC P0731 A/T 1ST GEAR FUNCTION
DTC P0731 A/T 1ST GEAR FUNCTION
DescriptionINFOID:0000000001375112
This malfunction is detected when the A/T does not shift into 1st gear position as instructed by TCM. This is
not only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunction such
as control valve sticking, improper solenoid valve operation.
On Board Diagn osis LogicINFOID:0000000001375113
Diagnostic trouble code “P0731 A/T 1ST GR FNCTN” with CONSULT-III or 18th judgment flicker without CON-
SULT-III is detected when TCM detects any inconsistency in the actual gear ratio.
Possible CauseINFOID:0000000001375114
Harness or connectors
(Solenoid circuits are open or shorted.)
Input clutch solenoid valve
Front brake solenoid valve
Direct clutch solenoid valve
High and low reverse clutch solenoid valve
Each clutch
Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000001375115
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Start the engine and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Make sure that “ATF TEMP 1” is within the following range. ATF TEMP 1: 20 °C – 140 °C
If out of range, drive vehicle to warm ATF or stop engine to cool ATF.
3. Select “1ST GR FNCTN P0731” of “DTC WORK SUPPORT” mode for “TRANSMISSION” with CON-
SULT-III.
4. Drive vehicle and maintain the following conditions.
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACCELE POSI: 0.6/8 or more
ENGINE SPEED: TURBINE REV − 50 rpm or more
TURBINE REV: 300 rpm or more
GEAR: “1” position
MANU MODE SW: ON
5. Keep the current driving status for at least 5 consecutive seconds if CONSULT-III screen changes from
“OUT OF CONDITION” to “TESTING”.
CAUTION:
If “TESTING” does not ap pear on CONSULT-III for a long ti me, select “SELF-DIAG RESULTS”. In
case a 1st trip DTC other than P0731 is shown, refer to “ AT-84, "
CONSULT-III Function (TRANSMIS-
SION)"”.
If “COMPLETED RESULT NG” is detected, go to AT-115, "
Diagnosis Procedure".
If “STOP VEHICLE” is detect ed, go to the following step.
6. Stop vehicle.
7. Drive vehicle in “D” position allowing it to shift fr om 1st to 5th gear and check shift timing and shift shock.
- Touch “OK” to complete the inspection when normally shifted from the 1st to 5th gear.
- Touch “NG” when an unusual shift shock, etc. occurs in spite of shifting from the 1st to 5th gear. Go to AT-
49, "Inspections Before Trouble Diagnosis".
- Perform AT-84, "
CONSULT-III Function (TRANSMISSION)" when not shifted from the 1st to 5th gear.
(Neither “OK” nor “NG” are indicated.)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 188 of 3924

INFINITI FX35 2008 Service Manual
DTC P0731 A/T 1ST GEAR FUNCTIONAT-115
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
Diagnosis ProcedureINFOID:0000000001375116
1.CHECK CAN COMMUNICATION LINE
With CONSULT-III
Perform se

Page 189 of 3924

INFINITI FX35 2008 Service Manual
AT-116
< SERVICE INFORMATION >
DTC P0732 A/T 2ND GEAR FUNCTION
DTC P0732 A/T 2ND GEAR FUNCTION
DescriptionINFOID:0000000001375117
This malfunction is detected when the A/T does not shift into 2nd gea

AT-116
< SERVICE INFORMATION >
DTC P0732 A/T 2ND GEAR FUNCTION
DTC P0732 A/T 2ND GEAR FUNCTION
DescriptionINFOID:0000000001375117
This malfunction is detected when the A/T does not shift into 2nd gear position as instructed by TCM. This is
not only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunction such
as control valve sticking, improper solenoid valve operation.
On Board Diagn osis LogicINFOID:0000000001375118
Diagnostic trouble code “P0732 A/T 2ND GR FNCTN” wit h CONSULT-III or 19th judgment flicker without
CONSULT-III is detected when TCM detects any inconsistency in the actual gear ratio.
Possible CauseINFOID:0000000001375119
Harness or connectors
(Solenoid circuits are open or shorted.)
Input clutch solenoid valve
Front brake solenoid valve
Direct clutch solenoid valve
High and low reverse clutch solenoid valve
Each clutch
Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000001375120
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Start the engine and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Make sure that “ATF TEMP 1” is within the following range. ATF TEMP 1: 20 °C – 140 °C
If out of range, drive vehicle to warm ATF or stop engine to cool ATF.
3. Select “2ND GR FNCTN P0732” of “DTC WORK SUPPORT” mode for “TRANSMISSION” with CON-
SULT-III.
4. Drive vehicle and maintain the following conditions.
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACCELE POSI: 0.6/8 or more
ENGINE SPEED: TURBINE REV − 50 rpm or more
TURBINE REV: 300 rpm or more
GEAR: “2” position
MANU MODE SW: ON
5. Keep the current driving status for at least 5 consecutive seconds if CONSULT-III screen changes from
“OUT OF CONDITION” to “TESTING”.
CAUTION:
If “TESTING” does not ap pear on CONSULT-III for a long ti me, select “SELF-DIAG RESULTS”. In
case a 1st trip DTC other than P0732 is shown, refer to “ AT-84, "
CONSULT-III Function (TRANSMIS-
SION)"”.
If “COMPLETED RESULT NG” is detected, go to AT-117, "
Diagnosis Procedure".
If “STOP VEHICLE” is detect ed, go to the following step.
6. Stop vehicle.
7. Drive vehicle in “D” position allowing it to shift fr om 1st to 5th gear and check shift timing and shift shock.
- Touch “OK” to complete the inspection when normally shifted from the 1st to 5th gear.
- Touch “NG” when an unusual shift shock, etc. occurs in spite of shifting from the 1st to 5th gear. Go to AT-
49, "Inspections Before Trouble Diagnosis".
- Perform AT-84, "
CONSULT-III Function (TRANSMISSION)" when not shifted from the 1st to 5th gear.
(Neither “OK” nor “NG” are indicated.)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 190 of 3924

INFINITI FX35 2008 Service Manual
DTC P0732 A/T 2ND GEAR FUNCTIONAT-117
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
Diagnosis ProcedureINFOID:0000000001375121
1.CHECK CAN COMMUNICATION LINE
With CONSULT-III
Perform se

Page 191 of 3924

INFINITI FX35 2008 Service Manual
AT-118
< SERVICE INFORMATION >
DTC P0733 A/T 3RD GEAR FUNCTION
DTC P0733 A/T 3RD GEAR FUNCTION
DescriptionINFOID:0000000001375122
This malfunction is detected when the A/T does not shift into 3rd gea

AT-118
< SERVICE INFORMATION >
DTC P0733 A/T 3RD GEAR FUNCTION
DTC P0733 A/T 3RD GEAR FUNCTION
DescriptionINFOID:0000000001375122
This malfunction is detected when the A/T does not shift into 3rd gear position as instructed by TCM. This is
not only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunction such
as control valve sticking, improper solenoid valve operation.
On Board Diagn osis LogicINFOID:0000000001375123
Diagnostic trouble code “P0733 A/T 3RD GR FNCTN” wit h CONSULT-III or 20th judgment flicker without
CONSULT-III is detected when TCM detects any inconsistency in the actual gear ratio.
Possible CauseINFOID:0000000001375124
Harness or connectors
(Solenoid circuits are open or shorted.)
Input clutch solenoid valve
Front brake solenoid valve
Direct clutch solenoid valve
High and low reverse clutch solenoid valve
Each clutch
Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000001375125
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Start the engine and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Make sure that “ATF TEMP 1” is within the following range. ATF TEMP 1: 20 °C – 140 °C
If out of range, drive vehicle to warm ATF or stop engine to cool ATF.
3. Select “3RD GR FNCTN P0733” of “DTC WORK SUPPORT” mode for “TRANSMISSION” with CON-
SULT-III.
4. Drive vehicle and maintain the following conditions.
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACCELE POSI: 0.6/8 or more
ENGINE SPEED: TURBINE REV − 50 rpm or more
TURBINE REV: 300 rpm or more
GEAR: “3” position
MANU MODE SW: ON
5. Keep the current driving status for at least 5 consecutive seconds if CONSULT-III screen changes from
“OUT OF CONDITION” to “TESTING”.
CAUTION:
If “TESTING” does not ap pear on CONSULT-III for a long ti me, select “SELF-DIAG RESULTS”. In
case a 1st trip DTC other than P0732 is shown, refer to “ AT-84, "
CONSULT-III Function (TRANSMIS-
SION)"”.
If “COMPLETED RESULT NG” is detected, go to AT-119, "
Diagnosis Procedure".
If “STOP VEHICLE” is detect ed, go to the following step.
6. Stop vehicle.
7. Drive vehicle in “D” position allowing it to shift fr om 1st to 5th gear and check shift timing and shift shock.
- Touch “OK” to complete the inspection when normally shifted from the 1st to 5th gear.
- Touch “NG” when an unusual shift shock, etc. occurs in spite of shifting from the 1st to 5th gear. Go to AT-
49, "Inspections Before Trouble Diagnosis".
- Perform AT-84, "
CONSULT-III Function (TRANSMISSION)" when not shifted from the 1st to 5th gear.
(Neither “OK” nor “NG” are indicated.)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 192 of 3924

INFINITI FX35 2008 Service Manual
DTC P0733 A/T 3RD GEAR FUNCTIONAT-119
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
Diagnosis ProcedureINFOID:0000000001375126
1.CHECK CAN COMMUNICATION LINE
With CONSULT-III
Perform se

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