2007 INFINITI FX35 ignition

MAIN POWER SUPPLY AND GROUND CIRCUIT AT-181
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Revision: 2006 July 2007 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 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.
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CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION CIR- CUIT
AT-183
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Revision: 2006 July 2007 FX35/FX45
CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION CIR-
CUIT
PFP:18002
CONSULT-II Reference ValueNCS001HB
Diagnostic ProcedureNCS001HC
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "Diagnostic Pro-
cedure without CONSULT-II" .
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 0 4 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK THROTTLE POSITION SIGNAL CIRCUIT
With CONSULT-II
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Depress accelerator pedal and read out the value of “CLSD THL POS” and “W/O THL POS”.
OK or NG
OK >> INSPECTION END
NG >> Check the following items. If NG, repair or replace damaged parts.

Perform the self-diagnosis for “ENGINE” with CONSULT-II. Refer to EC-121, "SELF-DIAG
RESULTS MODE" (for VQ35DE) or EC-784, "SELF-DIAG RESULTS MODE" (for VK45DE).

Open circuit or short to ground or short to power in harness or connectors.

Pin terminals for damage or loose connection with harness connector.
Item name Condition Display value
CLSD THL POS Released accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POS Fully depressed accelerator pedal. ON
Released accelerator pedal. OFF
Accelerator Pedal Operation Monitor Item
CLSD THL POS W/O THL POS
Released ON OFF
Fully depressed OFF ON
PCIA0070E

AT-184
BRAKE SIGNAL CIRCUIT
Revision: 2006 July 2007 FX35/FX45
BRAKE SIGNAL CIRCUITPFP:25320
CONSULT-II Reference ValueNCS001HD
Diagnostic ProcedureNCS001HE
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "Diagnostic Pro-
cedure without CONSULT-II" .
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 0 4 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK STOP LAMP SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out ON/OFF switching action of the “BRAKE SW”.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3. CHECK STOP LAMP SWITCH
Check continuity between stop lamp switch harness connector E210
terminals 1 and 2. Refer to AT- 1 8 6 , "
Wiring Diagram — AT — NON-
DTC" .
Check stop lamp switch after adjusting brake pedal — refer to
BR-6, "
BRAKE PEDAL" .
OK or NG
OK >> Check the following items. If NG, repair or replace dam- aged parts.

Harness for short or open between battery and stop lamp switch.

Harness for short or open between stop lamp switch and unified meter and A/C amp.
NG >> Repair or replace the stop lamp switch.
Item name Condition Display value
BRAKE SW Depressed brake pedal. ON
Released brake pedal. OFF
Item name Condition Display value
BRAKE SW Depressed brake pedal. ON
Released brake pedal. OFF
PCIA0070E
Condition Continuity
When brake pedal is depressed Yes When brake pedal is released No
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TROUBLE DIAGNOSIS FOR SYMPTOMS AT-189
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Revision: 2006 July 2007 FX35/FX45
TCM terminals and data are reference value. Measured between each terminal and ground.
A/T CHECK Indicator Lamp Does Not Come OnNCS001HJ
SYMPTOM:
A/T CHECK indicator lamp does not come on for about 2 seconds when turning ignition switch to
“ON”.
DIAGNOSTIC PROCEDURE
1. CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 0 4 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK A/T CHECK INDICATOR LAMP CIRCUIT
Check the combination meter. Refer to DI-5, "
COMBINATION METERS" .
OK or NG
OK >> GO TO 3
NG >> Repair or replace damaged parts.
3. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT- 1 7 9 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Terminal Wire
color Item Condition Data (Approx.)
3 L CAN-H – –
4PU K-line (CONSULT-
II signal) The terminal is connected to the data link connector for CONSULT-II. –
7OR Back-up lamp
relay Selector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
8 P CAN-L – –

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-193
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Revision: 2006 July 2007 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-81, "
Idle Speed and Ignition Timing Check" (for VQ35DE) or EC-
743, "Idle Speed and Ignition Timing Check" (for VK45DE).
OK or NG
OK >> GO TO 3.
NG >> Adjust engine idle speed. Refer to EC-81, "
Idle Speed and Ignition Timing Check" (for VQ35DE)
or EC-743, "
Idle Speed and Ignition Timing Check" (for VK45DE).
3. CHECK A/T POSITION
Check the A/T position. Refer to AT- 2 3 1 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT- 2 3 1 , "
Adjustment of A/T
Position" .
SCIA2119E

SHIFT CONTROL SYSTEM AT-231
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Revision: 2006 July 2007 FX35/FX45
REMOVAL
1. Disconnect lower lever of control device and control rod.
2. Remove manual lever from A/T assembly.
3. Remove control rod from vehicle.
INSTALLATION
Install in reverse order of removal. Be careful of the following:

After installation is completed, adjust and check A/T position. Refer to AT- 2 3 1 , "Adjustment of A/T Posi-
tion" and AT- 2 3 1 , "Checking of A/T Position" .
Adjustment of A/T PositionNCS001I7
1. Loosen nut of control rod.
2. Place PNP switch and selector lever in “P” position.
3. While pressing lower lever toward rear of vehicle (in “P” position direction), tighten nut to the specified torque. Refer to AT- 2 3 0 ,
"CONTROL ROD COMPONENTS" .
CAUTION:
Do not push the bracket.
Checking of A/T PositionNCS001I8
1. Place selector lever in “P” position, and turn ignition switch ON.
2. Check selector lever can be shifted to other than “P” position when brake pedal is depressed. Also check selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
4. Check the selector lever stops at each position with the feel of engagement when it is moved through all the positions. Check whether or not the actual position the selector lever is in matches the position shown
by the shift position indicator and the transmission body.
5. The method of operating the lever to individual positions cor- rectly should be as shown in the figure.
6. When selector button is pressed in “P”, “R”, or “N” position with- out applying forward/backward force to selector lever, check but-
ton operation for sticking.
7. Check the back-up lamps illuminate only when lever is placed in the “R” position. Check the back-up lamps does not illuminate
when selector lever is pushed against “R” position in the “P” or
“N” position.
8. Check the engine can only be started with the selector lever in the “P” and “N” positions. (With selector lever in the “P” position,
engine can be started even when selector lever is moved for-
ward and backward.)
9. Check transmission is locked completely in “P” position.
10. When selector lever is set to manual shift gate, check manual mode is displayed on combination meter. Shift selector lever to “+” and “-” sides, and check set shift position changes. (Only while a vehicle is oper-
ating.)
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AT-232
A/T SHIFT LOCK SYSTEM
Revision: 2006 July 2007 FX35/FX45
A/T SHIFT LOCK SYSTEMPFP:34950
DescriptionNCS001I9

The mechanical key interlock mechanism also operates as a shift lock:
With the ignition switch turned to ON, the selector lever cannot be shifted from “P” position to any other
position unless the brake pedal is depressed.
With the key removed, the selector lever cannot be shifted from “P” position to any other position.
The key cannot be removed unless the selector lever is placed in “P” position.

The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock sole-
noid and by the operation of the rotator and slider located inside the key cylinder.
Shift Lock System Electrical Parts LocationNCS001IA
1. Stop lamp switch 2. Brake pedal 3. Key interlock cable
4. Shift lock solenoid
A. Center console assembly B. Shift lock release button C. Brake pedal, upper
D. Control device assembly E. Shift lock solenoid, reverse side F. Park position switch
SCIA8107E

AT-234
A/T SHIFT LOCK SYSTEM
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNCS001IC
SYMPTOM 1:

Selector lever cannot be moved from “P” position with key in ON position and brake pedal
applied.

Selector lever can be moved from “P” position with key in ON position and brake pedal released.

Selector lever can be moved from “P” position when key is removed from key cylinder.
SYMPTOM 2:

Ignition key cannot be removed when selector lever is set to “P” position.

Ignition key can be removed when selector lever is set to any position except “P” position.
1. CHECK KEY INTERLOCK CABLE
Check the key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace key interlock cable. Refer to AT- 2 3 6 , "
KEY INTERLOCK CABLE" .
2. CHECK SELECTOR LEVER POSITION
Check the selector lever position for damage. Refer to AT- 2 3 1 , "
Checking of A/T Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust A/T position. Refer to AT- 2 3 1 , "
Adjustment of A/T Position" .
3. CHECK SHIFT LOCK SOLENOID AND PARK POSITION SWITCH
1. Connect A/T device harness connector.
2. Turn ignition switch ON.
3. Selector lever is set in “P” position.
4. Check operation.
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.
4. CHECK POWER SOURCE
1. Turn ignition switch ON.
2. Check the voltage between A/T device harness connector M67 terminal 1 and ground. Refer to AT- 2 3 3 , "
Wiring Diagram — AT
— SHIFT" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.
Condition Brake pedal Operation
When ignition switch is turned to ON and selector lever is set in
“P” position. Depressed Yes
Released No
Condition Brake pedal Data (Approx.)
When ignition switch is turned to
ON. Depressed Battery voltage
Released 0 V
SCIA2122E