Infiniti FX35, FX50 (S51). Manual - part 1791

RAS WARNING LAMP DOSE NOT TURN ON

STC-105

< SYMPTOM DIAGNOSIS >

[WITH REAR ACTIVE STEER]

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SYMPTOM DIAGNOSIS

RAS WARNING LAMP DOSE NOT TURN ON 

Description

INFOID:0000000005549754

RAS warning lamp does not turns ON when turning ignition switch ON from OFF.

Diagnosis Procedure

INFOID:0000000005549755

1.

CHECK RAS SYSTEM POWER SUPPLY AND GROUND CIRCUIT

Perform the trouble diagnosis of the power supply and ground circuit. Refer to 

STC-81, "Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the specific malfunctioning part.

2.

CHECK RAS WARNING LAMP

Perform the trouble diagnosis of RAS warning lamp. Refer to 

STC-85, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check that there is no malfunction in each harness connector pin terminal or disconnection.

NO

>> Repair or replace the specific malfunctioning part.

STC-106

< SYMPTOM DIAGNOSIS >

[WITH REAR ACTIVE STEER]

RAS WARNING LAMP DOSE NOT TURN OFF

RAS WARNING LAMP DOSE NOT TURN OFF 

Description

INFOID:0000000005549756

RAS system stops (error) when RAS warning lamp turns ON.

Diagnosis Procedure

INFOID:0000000005549757

1.

PERFORM SELF-DIAGNOSIS

With CONSULT-III

Perform “4WAS(MAIN)/RAS/HICAS” self-diagnosis.

Is any DTC detected?

YES

>> Repair or replace the specific malfunctioning parts.

NO

>> GO TO 2.

2.

CHECK RAS WARNING LAMP

Perform the trouble diagnosis of RAS warning lamp. Refer to 

STC-85, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check that there is no malfunction in each harness connector pin terminal or disconnection.

NO

>> Repair or replace the specific malfunctioning part.

UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION)

STC-107

< SYMPTOM DIAGNOSIS >

[WITH REAR ACTIVE STEER]

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UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIA-
TION)

Description

INFOID:0000000005549758

• The steering force does not change smoothly according to the vehicle speed.
- The steering force is heavy when steering.
- The steering force is light when driving at high speed.

Diagnosis Procedure

INFOID:0000000005549759

1.

CHECK RAS SYSTEM VEHICLE SPEED SIGNAL

Perform the trouble diagnosis of the vehicle speed signal. Refer to 

STC-65, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the specific malfunctioning part.

2.

CHECK STEERING SYSTEM

Check the steering system. Refer to 

ST-12, "Inspection"

 (Power steering fluid), 

ST-14, "Inspection"

 (Steering

wheel).

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the specific malfunctioning part.

3.

CHECK RAS SYSTEM POWER STEERING SOLENOID VALVE

Perform the trouble diagnosis of the power steering solenoid valve. Refer to 

STC-83, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check that there is no malfunction in each harness connector pin terminal or disconnection.

NO

>> Repair or replace the specific malfunctioning part.

STC-108

< PRECAUTION >

[WITH REAR ACTIVE STEER]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000005588473

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 AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

• 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 performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.

• 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 har-
ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution Necessary for Steering Wheel Rotation after Battery Disconnect

INFOID:0000000005588474

NOTE:
• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-

tion, then disconnect both battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both

battery cables.

This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, 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.

Turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)

3.

Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.

4.

Perform the necessary repair operation.

5.

When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)