2006 INFINITI M35 ignition

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: 2006 January2006 M35/M45
Large Shock (“N” to “D” Position)NCS001Q3
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 3 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 4 ,
"Judgement Self-diagnosis Code" .
NO >> GO TO 2.
2. ENGINE IDLE SPEED
Check engine idle speed. Refer to EC-82, "
Idle Speed and Ignition Timing Check" (for VQ35DE engine), EC-
793, "Idle Speed and Ignition Timing Check" (for VK45DE engine).
OK or NG
OK >> GO TO 3.
NG >> Adjust engine idle speed. Refer to EC-82, "
Idle Speed and Ignition Timing Check" (for VQ35DE
engine), EC-793, "
Idle Speed and Ignition Timing Check" (for VK45DE engine).
3. CHECK CONTROL LINKAGE
Check control linkage.
Refer to AT-228, "Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust control linkage. Refer to AT-227, "
Adjustment of A/T Position" .
4. 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 5.
NG >> Refill ATF.
5. CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer to AT-55, "
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 6 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT-298, "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT-318, "Oil Pump" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

AT-228
SHIFT CONTROL SYSTEM
Revision: 2006 January2006 M35/M45
Checking of A/T PositionNCS001QO
1. Place selector lever in “P” position, and turn ignition switch ON (engine stop).
2. Make sure that selector lever can be shifted to other than “P” position when brake pedal is depressed.
Also make sure that 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. Confirm 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 A/T 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. Confirm the back-up lamps illuminate only when lever is placed
in the “R” position. Confirm the back-up lamps does not illumi-
nate when selector lever is pushed against “R” position in the
“P” or “N” position.
8. Confirm 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. Make sure that A/T is locked completely in “P” position.
10. When selector lever is set to manual shift gate, make sure that manual mode is displayed on combination
meter.
Shift selector lever to “+” and “-” sides, and check that set shift position changes.
SCIA6760E

A/T SHIFT LOCK SYSTEM
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Revision: 2006 January2006 M35/M45
A/T SHIFT LOCK SYSTEMPFP:34950
DescriptionNCS001QP
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 posi-
tions unless the brake pedal is depressed.
Shift Lock System Electrical Parts LocationNCS001QQ
A. Control device assembly B. Engine room, right side C. Brake pedal, upper
1. Shift lock unit (Shift lock solenoid installed) 2. A/T device harness connector 3. Shift lock relay
4. Brake pedal 5. Stop lamp switch
SCIA6743E

AT-232
A/T SHIFT LOCK SYSTEM
Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNCS001QS
SYMPTOM:
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.
1. CHECK SELECTOR LEVER POSITION
Check the selector lever position for damage. Refer to AT- 2 2 8 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 2.
NG >> Adjust control linkage. Refer to AT-227, "
Adjustment of A/T Position" .
2. CHECK POWER SOURCE
1. Turn ignition switch OFF.
2. Disconnect shift lock relay.
3. Check voltage between shift lock relay E35 terminal 2 and
ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.Vo l ta g e
Brake pedal depressed: Battery voltage
Brake pedal released: 0V
SCIA6866E

A/T SHIFT LOCK SYSTEM
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Revision: 2006 January2006 M35/M45
3. DETECT MALFUNCTIONING ITEM
Check the following.
Harness for short or open between battery and stop lamp switch harness connector E124 terminal 1
Harness for short or open between stop lamp switch harness connector E124 terminal 2 and shift lock
relay E35 terminal 2
10A fuse [No.20, located in the fuse block (J/B)]
Stop lamp switch
–Check continuity between stop lamp switch harness connector E124 terminals 1 and 2
Check stop lamp switch after adjusting brake pedal — refer to BR-6, "
BRAKE PEDAL" .
ICC brake hold relay. Refer to ACS-68, "ICC Brake Hold Relay" . (With ICC only)
Harness for short or open between battery and ICC brake hold relay E80 terminal 3. Refer to ACS-49,
"DTC 13 STOP LAMP RLY FIX" . (With ICC only)
Harness for short or open between ICC brake hold relay E80 terminal 5 and shift lock relay E35 terminal
2. (With ICC only)
Harness for short or open between ICC sensor integrated unit harness connector E61 terminal 2 and ICC
brake hold relay E80 terminal 2. Refer to ACS-49, "
DTC 13 STOP LAMP RLY FIX" . (With ICC only)
Harness for short or open between ICC brake hold relay E80 terminal 1 and ground. Refer to ACS-49,
"DTC 13 STOP LAMP RLY FIX" . (With ICC only)
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect shift lock relay.
3. Check continuity between shift lock relay E35 terminal 1 and
ground.
CAUTION:
Connect test probe (BLACK) to shift lock relay, and test
probe (RED) to 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.
SCIA4990E
Continuity should exist.
SCIA6931E

AT-234
A/T SHIFT LOCK SYSTEM
Revision: 2006 January2006 M35/M45
5. CHECK INPUT SIGNAL A/T DEVICE
1. Turn ignition switch OFF.
2. Disconnect A/T device harness connector.
3. Turn ignition switch ON. (Do not start engine.)
4. Check voltage between A/T device harness connector M133 ter-
minal 7 and ground.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING ITEM
Check the following.
Harness for short or open between push-button ignition switch and shift lock relay E35 terminal 5
Harness for short or open between shift lock relay E35 terminal 3 and A/T device harness connector
M133 terminal 7
10A fuse [No.12, located in the fuse block (J/B)]
Push-button ignition switch (Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .)
Shift lock relay
–Check continuity between shift lock relay E35 terminal 3 and 5
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness connector M133
terminal 8 and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. Vo l ta g e
Brake pedal depressed: Battery voltage
Brake pedal released: 0V
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Condition Continuity
12V direct current supply between terminal 1 and 2 Yes
OFF No
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Continuity should exist.
SCIA6868E

A/T SHIFT LOCK SYSTEM
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Revision: 2006 January2006 M35/M45
8. CHECK SHIFT LOCK SOLENOID
1. Connect A/T device harness connector.
2. Turn ignition switch ON. (Do not start engine.)
3. Check shift lock solenoid operation.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damage parts.
Condition Brake pedal Operation
When ignition switch is turned to ON position and
selector lever is set in “P” position.Depressed Yes
Released No

PRECAUTIONS
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Revision: 2006 January2006 M35/M45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NJS000FN
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WAR NING :
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNJS000FO
NOTE:
This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
Remove and install all control units after disconnecting both battery cables with the ignition knob in the
LOCK position.
Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the
ACC position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the
LOCK position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.