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Infiniti FX35, FX50 (S51). Manual - part 225

BCS

COMBINATION SWITCH SYSTEM SYMPTOMS

BCS-81

< SYMPTOM DIAGNOSIS >

SYMPTOM DIAGNOSIS

COMBINATION SWITCH SYSTEM SYMPTOMS

Symptom Table

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Perform “Data Monitor” of CONSULT-III to check for any malfunctioning item.

Check the malfunction combinations.

Malfunction item:

Identify the malfunctioning part from the agreed combination and repair or replace the part.

Malfunction

combination

Data monitor item

FR WI

PER HI

FR WIP

ER LOW

FR WI

PER INT

WIPE

RR WIP

R INT

RR W

ASHER

INT VOL

TURN SIG

NAL R

TURN SIGNAL L

I BEAM SW

HEAD LAMP SW

ASSI

FR F

All Items

If only one item is detected or the item is not applicable to the combinations A to K

Malfunction

combination

Malfunctioning part

Repair or replace

Combination switch INPUT 1 circuit

Inspect the combination switch input circuit applicable to the malfunctioning
part. Refer to

BCS-41, "Diagnosis Procedure"

Combination switch INPUT 2 circuit

Combination switch INPUT 3 circuit

Combination switch INPUT 4 circuit

Combination switch INPUT 5 circuit

Combination switch OUTPUT 1 circuit

Inspect the combination switch output circuit applicable to the malfunction-
ing part. Refer to

BCS-43, "Diagnosis Procedure"

Combination switch OUTPUT 2 circuit

Combination switch OUTPUT 3 circuit

Combination switch OUTPUT 4 circuit

Combination switch OUTPUT 5 circuit

BCM

Replace BCM. Refer to

BCS-83, "Exploded View"

Combination switch

Replace the combination switch.

BCS-82

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

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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.