2004 INFINITI FX35 Service Manual

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Page 225 of 4449

INFINITI FX35 2004 Service Manual AT-148
DTC P1730 A/T INTERLOCK
Revision: 2004 November 2004 FX35/FX45
A/T INTERLOCK COUPLING PATTERN TABLE
: NG, X: OK
Diagnostic ProcedureACS007DG
1. SELF-DIAGNOSIS
With CONSULT-II
1. Drive vehicle

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INFINITI FX35 2004 Service Manual DTC P1730 A/T INTERLOCK
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Revision: 2004 November 2004 FX35/FX45
4. DETECT MALFUNCTIONING ITEM
Check the following items:
The A/T assembly harness connector terminals f

Page 227 of 4449

INFINITI FX35 2004 Service Manual AT-150
DTC P1731 A/T 1ST ENGINE BRAKING
Revision: 2004 November 2004 FX35/FX45
DTC P1731 A/T 1ST ENGINE BRAKINGPFP:00000
DescriptionACS007DH
Fail-safe function to prevent sudden decrease in speed by e

Page 228 of 4449

INFINITI FX35 2004 Service Manual DTC P1731 A/T 1ST ENGINE BRAKING
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Revision: 2004 November 2004 FX35/FX45
Diagnostic ProcedureACS007DM
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start the engine.
2. Se

Page 229 of 4449

INFINITI FX35 2004 Service Manual AT-152
DTC P1752 INPUT CLUTCH SOLENOID VALVE
Revision: 2004 November 2004 FX35/FX45
DTC P1752 INPUT CLUTCH SOLENOID VALVEPFP:31940
DescriptionACS007DN
Input clutch solenoid valve is controlled by the

AT-152
DTC P1752 INPUT CLUTCH SOLENOID VALVE
Revision: 2004 November 2004 FX35/FX45
DTC P1752 INPUT CLUTCH SOLENOID VALVEPFP:31940
DescriptionACS007DN
Input clutch solenoid valve is controlled by the TCM in response to signals sent from the PNP switch, vehicle
speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then be shifted to the
optimum position.
CONSULT-II Reference ValueACS007DO
On Board Diagnosis LogicACS007DP
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “I/C SOLENOID/CIRC” with CONSULT-II or P1752 without CONSULT-II is
detected under the following conditions.
–When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
–When TCM detects as irregular by comparing target value with monitor value.
Possible CauseACS007DQ
Harness or connectors
(Solenoid circuit is open or shorted.)
Input clutch solenoid valve
DTC Confirmation ProcedureACS007DR
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 “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 5
consecutive seconds.
ACCELE POSI: 1.5/8 - 2.0/8
Selector lever: “D” position
Gear position: 3rd 4th Gear (I/C ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
5. If DTC is detected go to “AT- 1 5 3 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “With CONSULT-II”.
Item name Condition Display value (Approx.)
I/C SOLENOIDInput clutch disengaged. Refer to AT- 2 0
. 0.6 - 0.8 A
Input clutch engaged. Refer to AT- 2 0
. 0 - 0.05 A
SAT014K

Page 230 of 4449

INFINITI FX35 2004 Service Manual DTC P1752 INPUT CLUTCH SOLENOID VALVE
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Revision: 2004 November 2004 FX35/FX45
Diagnostic ProcedureACS007DS
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Turn ignition swit

Page 231 of 4449

INFINITI FX35 2004 Service Manual AT-154
DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION
Revision: 2004 November 2004 FX35/FX45
DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTIONPFP:31940
DescriptionACS007DT
Input clutch solenoid valve is

AT-154
DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION
Revision: 2004 November 2004 FX35/FX45
DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTIONPFP:31940
DescriptionACS007DT
Input clutch solenoid valve is controlled by the TCM in response to signals sent from the PNP switch, vehi-
cle speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then be
shifted to the optimum position.
This is not only caused by electrical malfunction (circuits open or shorted) but also by mechanical mal-
function such as control valve sticking, improper solenoid valve operation.
CONSULT-II Reference ValueACS007DU
On Board Diagnosis LogicACS007DV
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “I/C SOLENOID FNCTN” with CONSULT-II or P1754 without CONSULT-II is
detected under the following conditions.
–When TCM detects that actual gear ratio is irregular, and relation between gear position and condition of
pressure switch 3 is irregular during depressing accelerator pedal. (Other than during shift change)
–When TCM detects that relation between gear position and the condition of ATF pressure switch 3 is irreg-
ular during releasing accelerator pedal. (Other than during shift change)
Possible CauseACS007DW
Harness or connectors
(Solenoid and switch circuits are open or shorted.)
Input clutch solenoid valve
ATF pressure switch 3
DTC Confirmation ProcedureACS007DX
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. Start engine.
2. Accelerate vehicle to maintain the following conditions.
ACCELE POSI: 1.5/8 - 2.0/8
Selector lever: “D” position
Gear position: 3rd 4th Gear (I/C ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. Perform step “2” again.
4. Turn ignition switch “OFF”, then perform step “1” to “3” again.
5. Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II. If DTC (P1754) is detected, refer to AT- 1 5 5 , "
Diagnostic Procedure" .
If DTC (P1752) is detected, go to AT- 1 5 3 , "
Diagnostic Procedure" .
If DTC (P1843) is detected, go to AT- 1 8 1 , "
Diagnostic Procedure" .
Item name Condition Display value (Approx.)
I/C SOLENOIDInput clutch disengaged. Refer to AT- 2 0
. 0.6 - 0.8 A
Input clutch engaged. Refer to AT- 2 0
. 0 - 0.05 A
ATF PRES SW 3Input clutch engaged. Refer to AT- 2 0
.ON
Input clutch disengaged. Refer to AT- 2 0
.OFF
SAT014K

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INFINITI FX35 2004 Service Manual DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION
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Revision: 2004 November 2004 FX35/FX45
WITH GST
Follow the procedure “With CONSULT-II”.
Diagnostic ProcedureACS007D

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