Infiniti G35 (V35) Sedan. Manual — part 1360
TM-132
< COMPONENT DIAGNOSIS >
[5AT: RE5R05A]
P0725 ENGINE SPEED SIGNAL
NO
>> Check DTC detected item. Refer to
TM-114, "CONSULT-III Function (TRANSMISSION)"
3.
CHECK THE IGNITION SIGNAL CIRCUIT
1.
Start the engine.
2.
Select “DATA MONITOR”.
3.
While monitoring “ENGINE SPEED”, check for engine speed change corresponding to “ACCELE POSI”.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Check ignition signal circuit. Refer to
.
4.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> Replace the control valve with TCM. Refer to
NO
>> Repair or replace damaged parts.
Item name
Condition
Value
ENGINE SPEED
Engine running
Closely matches the tachometer reading.
ACCELE POSI
Released accelerator pedal.
0.0/8
Fully depressed accelerator pedal
8.0/8
P0731 A/T 1ST GEAR FUNCTION
TM-133
< COMPONENT DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
P0731 A/T 1ST GEAR FUNCTION
Description
INFOID:0000000000957032
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.
DTC Logic
INFOID:0000000000957033
DTC DETECTION LOGIC
*: This is an OBD-II self-diagnostic item.
DTC CONFIRMATION PROCEDURE
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.
1.
CHECK ATF TEMPERATURE
With CONSULT-III
1.
Start the engine.
2.
Select “DATA MONITOR”.
3.
Check ATF temperature is in the following range.
Is ATF temperature within specified range?
YES
>> GO TO 2.
NO
>> Drive vehicle to warm ATF or stop engine to cool ATF.
2.
CHECK SYMPTOM 1
With CONSULT-III
1.
Select “1ST GR FNCTN P0731” of “DTC WORK SUPPORT”.
2.
Drive vehicle and maintain the following conditions.
DTC
Item
(CONSULT-III screen
terms)
A/T CHECK indicator
lamp judgment flicker
Diagnostic item is de-
tected when...
Possible cause
P0731*
AT 1ST GR FNCTN
18th
TCM detects any incon-
sistency in the actual
gear ratio.
• 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 cir-
cuit
ATF TEMP 1
: 20
°
C – 140
°
C
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
TM-134
< COMPONENT DIAGNOSIS >
[5AT: RE5R05A]
P0731 A/T 1ST GEAR FUNCTION
3.
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 appear on CONSULT-III for a long time, select “SELF-DIAG RESULTS”. In
case a 1st trip DTC other than P0731 is shown, refer to applicable “TROUBLE DIAGNOSIS FOR
DTC”.
Is “STOP VEHICLE” or “COMPLETED RESULT NG” displayed?
“STOP VEHICLE”>>GO TO 3.
“COMPLETED RESULT NG”>>Go to
3.
CHECK SYMPTOM 2
With CONSULT-III
1.
Stop vehicle.
2.
Drive vehicle in “D” position allowing it to shift from 1st to 5th gear and check shift timing and shift shock.
Is the inspection result normal?
YES
>> Check Intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
NO
>> Go to
Diagnosis Procedure
INFOID:0000000000957034
1.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
REPLACE CONTROL VALVE WITH TCM
1.
Replace control valve with TCM. Refer to
.
2.
Perform “DTC CONFIRMATION PROCEDURE”. Refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Confirm malfunction phenomena by “ROAD TEST” to repair malfunctioning part. Refer to
GEAR
: “1” position
Manual mode
: ON
P0732 A/T 2ND GEAR FUNCTION
TM-135
< COMPONENT DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
P0732 A/T 2ND GEAR FUNCTION
Description
INFOID:0000000000957035
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.
DTC Logic
INFOID:0000000000957036
DTC DETECTION LOGIC
*: This is an OBD-II self-diagnostic item.
DTC CONFIRMATION PROCEDURE
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.
1.
CHECK ATF TEMPERATURE
With CONSULT-III
1.
Start the engine.
2.
Select “DATA MONITOR”.
3.
Check ATF temperature is in the following range.
Is ATF temperature within specified range?
YES
>> GO TO 2.
NO
>> Drive vehicle to warm ATF or stop engine to cool ATF.
2.
CHECK SYMPTOM 1
With CONSULT-III
1.
Select “2ND GR FNCTN P0732” of “DTC WORK SUPPORT”.
2.
Drive vehicle and maintain the following conditions.
DTC
Item
(CONSULT-III screen
terms)
A/T CHECK indicator
lamp judgment flicker
Diagnostic item is de-
tected when...
Possible cause
P0732*
AT 2ND GR FNCTN
19th
TCM detects any incon-
sistency in the actual
gear ratio.
• 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 cir-
cuit
ATF TEMP 1
: 20
°
C – 140
°
C
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
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