2006 INFINITI FX35 Ac system

MAIN POWER SUPPLY AND GROUND CIRCUIT AT-181
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Revision: 2006 December 2006 FX35/FX45
3. DETECT MALFUNCTIONING ITEM
Check the following.

Harness for short or open between battery and A/T assembly harness connector F44 terminals 1, 2

Harness for short or open between ignition switch and A/T assembly harness connector F44 terminal 6

10 A fuse (No. 37, located in the fuse and fusible link block) and 10 A fuse (No. 83, located in the IPDM E/
R)

Ignition switch, Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Check continuity between A/T assembly harness connector F44 terminals and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
5. 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 6.
NG >> Repair or replace damaged parts.
6. PERFORM SELF-DIAGNOSIS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" .
OK or NG
OK >> INSPECTION END
NG-1 >> Self-diagnosis does not activate: GO TO 7.
NG-2 >> DTC is displayed: Check the malfunctioning system. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC
RESULT MODE" .
Continuity should exist.
SCIA2106E

A/T INDICATOR CIRCUIT AT-185
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Revision: 2006 December 2006 FX35/FX45
A/T INDICATOR CIRCUITPFP:24810
DescriptionNCS001HF
TCM sends the switch signals to combination meters. By CAN communication line. Then manual mode switch
position is indicated on the A/T indicator.
CONSULT-II Reference ValueNCS001HG
Diagnostic ProcedureNCS001HH
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II and read out the value of “GEAR”.
3. Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the position mutually
coincide when the selector lever is shifted to the “+ (up)” or “-
(down)” side (1st ⇔ 5th gear).
OK or NG
OK >> INSPECTION END
NG >> Check the following.
A/T INDICATOR SYMPTOM CHART
Item name Condition Display value
GEAR During driving 1, 2, 3, 4, 5
PCIA0065E
Items Presumed Location of Trouble
The actual gear position does not change, or shifting into the
manual mode is not possible (no gear shifting in the manual
mode possible).
The A/T indicator is not indicated. Manual mode switch

Refer to
AT-166, "DTC P1815 MANUAL MODE SWITCH" .
A/T main system (Fail-safe function actuated)

Refer to AT-92, "SELF-DIAGNOSTIC RESULT MODE" .
The actual gear position changes, but the A/T indicator is not indi-
cated. Perform the self-diagnosis function.

Refer to
AT-92, "SELF-DIAGNOSTIC RESULT MODE" .
The actual gear position and the indication on the A/T indicator
do not coincide. Perform the self-diagnosis function.

Refer to
AT-92, "SELF-DIAGNOSTIC RESULT MODE" .
Only a specific position or positions is/are not indicated on the A/
T indicator. Check the unified meter and A/C amp.

Refer to
DI-5, "COMBINATION METERS" .

AT-190
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 December 2006 FX35/FX45
Engine Cannot Be Started in “P” or “N” PositionNCS001HK
SYMPTOM:

Engine cannot be started with selector lever in “P” or “N” position.

Engine can be started with selector lever in “D”or “R” position.
DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Do the self-diagnosis results indicate PNP switch?
YES >> Check the malfunctioning system. Refer to AT- 11 2 , "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
NO >> GO TO 2.
2. CHECK CONTROL LINKAGE
Check the control linkage. Refer to AT- 2 3 1 , "
Checking of A/T Posi-
tion" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control linkage. Refer to AT- 2 3 1 , "
Adjustment of
A/T Position" .
3. CHECK STARTING SYSTEM
Check starting system. Refer to SC-8, "
STARTING SYSTEM" .
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
SCIA2119E

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-191
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Revision: 2006 December 2006 FX35/FX45
In “P” Position, Vehicle Moves When PushedNCS001HL
SYMPTOM:
Even though the selector lever is set in the “P” position, the parking mechanism is not actuated,
allowing the vehicle to be moved when it is pushed.
DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Do the self-diagnostic results indicate PNP switch?
YES >> Check the malfunctioning system. Refer to AT- 11 2 , "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
NO >> GO TO 2.
2. CHECK CONTROL LINKAGE
Check the control linkage. Refer to AT- 2 3 1 , "
Checking of A/T Posi-
tion" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control linkage. Refer to AT- 2 3 1 , "
Adjustment of
A/T Position" .
3. CHECK PARKING COMPONENTS
Check parking components. Refer to AT- 2 5 1 , "
Parking Components (2WD Models Only)" (2WD models) or
AT- 2 9 4 , "
Disassembly" (AWD models).
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 3 9 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 3 , "
A/T Fluid Condition
Check" .
OK or NG
OK >> INSPECTION END
NG >> Check the malfunction items. If any items are damaged,
repair or replace damaged parts. Refer to AT- 6 4 , "
Symp-
tom Chart" (Symptom No.65).
SCIA2119E
SCIA5199E

AT-192
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 December 2006 FX35/FX45
In “N” Position, Vehicle MovesNCS001HM
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Do the self-diagnostic results indicate PNP switch?
YES >> Check the malfunctioning system. Refer to AT- 11 2 , "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
NO >> GO TO 2.
2. CHECK CONTROL LINKAGE
Check the control linkage. Refer to AT- 2 3 1 , "
Checking of A/T Posi-
tion" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control linkage. Refer to AT- 2 3 1 , "
Adjustment of
A/T Position" .
3. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 3 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 3 9 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 3 , "
A/T Fluid Condition
Check" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunction items. If any items are damaged,
repair or replace damaged parts. Refer to AT- 6 4 , "
Symp-
tom Chart" (Symptom No.67).
SCIA2119E
SAT638A
SCIA5199E

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-193
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Revision: 2006 December 2006 FX35/FX45
5. CHECK SYMPTOM
Check again. Refer to AT- 5 7 , "
Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 8 9 , "
TCM Input/Output Signal Reference Values" .
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Large Shock (“N” to “D” Position)NCS001HN
SYMPTOM:
A noticeable shock occurs when the selector lever is shifted from “N” to “D” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT-
103, "Judgement Self-diagnosis Code" .
NO >> GO TO 2.
2. ENGINE IDLE SPEED
Check the engine idle speed. Refer to EC-82, "
Idle Speed and Ignition Timing Check" (for VQ35DE) or EC-
742, "Idle Speed and Ignition Timing Check" (for VK45DE).
OK or NG
OK >> GO TO 3.
NG >> Adjust engine idle speed. Refer to EC-82, "
Idle Speed and Ignition Timing Check" (for VQ35DE)
or EC-742, "
Idle Speed and Ignition Timing Check" (for VK45DE).
3. CHECK CONTROL LINKAGE
Check the control linkage. Refer to AT- 2 3 1 , "
Checking of A/T Posi-
tion" .
OK or NG
OK >> GO TO 4.
NG >> Adjust control linkage. Refer to AT- 2 3 1 , "
Adjustment of
A/T Position" .
SCIA2119E

AT-194
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 December 2006 FX35/FX45
4. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT- 1 3 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 5.
NG >> Refill ATF.
5. CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer
to AT- 5 4 , "
LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 8.
NG-1 >> Line pressure high: GO TO 6.
NG-2 >> Line pressure low: GO TO 7.
6. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 3 9 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 9 4 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 3 1 2 , "Oil Pump" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 3 9 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 9 4 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 3 1 2 , "Oil Pump" .
–Power train system. Refer to AT- 2 9 4 , "DISASSEMBLY" .
–Transmission case. Refer to AT- 2 9 4 , "DISASSEMBLY" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
SAT638A
SAT494G

AT-196
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 December 2006 FX35/FX45
Vehicle Does Not Creep Backward in “R” PositionNCS001HO
SYMPTOM:
The vehicle does not creep in the “R” position. Or an extreme lack of acceleration is observed.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT-
103, "Judgement Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK CONTROL LINKAGE
Check the control linkage. Refer to AT- 2 3 1 , "
Checking of A/T Posi-
tion" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control linkage. Refer to AT- 2 3 1 , "
Adjustment of
A/T Position" .
3. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 3 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4. CHECK STALL TEST
Check stall revolution with selector lever in “M” and “R” positions.
Refer to AT- 5 3 , "
STALL TEST" .
OK or NG
OK >> GO TO 6.
OK in “M” position, NG in “R” position>>GO TO 5
NG in both “M” and “R” positions>>GO TO 8.
SCIA2119E
SAT638A
SAT493G